寬泰機械股份有限公司/Kentai Machinery Co., Ltd

寬泰機械股份有限公司/Kentai Machinery Co., Ltd High Speed Carbide Sawing Machine with CNC Control and CNC Automatic Carbide Sawing Machine High-spe

Kentai Machinery has founded in 1985 and mainly concentrated on two fields of Circular Saw Blade Grinding Machines and Sawing Machines. We are the first professional manufacturer to develop of HSS Circular Saw Blade Grinding Machines in Taiwan. With regards to solid and pipe cutting, owning High Speed Carbide Sawing Machine with CNC Control and CNC Automatic Carbide Sawing Machine High-speed for non-ferrous metals which are one of the most speedy machines in the world.

寬泰機械成立於1985年，專注於鋸片研磨機與金屬圓鋸機兩大領域；為台灣首家著手研發HSS高速鋼圓鋸片研磨機的專業生產製造商；在鋼材和管材的切削領域上，擁有CNC全自動泛用型與非鐵金屬型高速金屬圓鋸機，皆為全球最快的機種之一，以滿足客戶對快速切削與精密切斷加工的要求。

We have been growing up together with domestic companies for two decades including iron and steel industry, and manufacturers of pipe manufacturers, steel pipe furniture, car and motorcycle accessories, bicycles, sports equipments, hardware and so on.

二十幾年來伴隨著國內HSS圓鋸片使用廠商胼手胝足一起成長，包含鋼鐵業、製管業、鋼管傢俱、汽機車零配件、自行車、運動器材、建築器材、五金業等，同時亦提供再研磨最佳利器。

Maintaining principles of technology-driven and consistent requirements for superior quality; besides supply to domestic market, we also have been exporting to more than 20 countries including Europe, America, Japan, Korea and other leading machinery countries. Moreover, constantly participating in international exhibitions e.g.: EMO, IMTS, CIMT and TIMTOS and so on; and marketing with “KENTAI” brand which is well-known for good reputation on global machinery stage.

秉持著技術本位與對優良品質一貫的要求，產品除供應國內市場外，多年來行銷版圖已擴增至二十幾個國家，包含歐、美、日、韓等機械先進國家，並持續參與國際性展會，例如：EMO、IMTS、CIMT和TIMTOS等，以「KENTAI」品牌行銷並享譽國際工具機的舞台。

With regards to insistence of quality, we never neglect. Not only conform to CE regulations but also certified by ISO 9001 in 2006. Furthermore, complete after sale service, and quality warranty are provided. Always, guarding the spirit of “Innovation, Progression, Satisfaction” to offer our diversity services for global customers.

對於品質的堅持使終不懈怠，不僅符合歐規的CE規範，更於2006年通過ISO 9001的認証，且提供完整的售後服務與品質保固，堅守「創新進步、滿足客戶」的精神，隨時為全球客戶提供多元性的服務。

▉ Do Aerospace and Drone Components Really Need Circular Saws? From Aluminum Alloy to Chromium and Inconel — How High-Ri...
11/08/2026

▉ Do Aerospace and Drone Components Really Need Circular Saws? From Aluminum Alloy to Chromium and Inconel — How High-Rigidity Circular Saws Cut Machining Costs (Part 2)

This is Part 2 of a two-part series. Part 1 covers the technical challenges of sawing aerospace materials, international aerospace cases, and Kentai's actual track record machining Chromium and Inconel for Italian customers.

▉ Summary

- A real case from UK aerospace materials supplier Gould Alloys shows the same bar-cutting job taking under 10 seconds with a circular saw versus roughly 7–8 minutes with a band saw.
- Circular saws offer higher cutting precision, saving roughly 1 mm of material per cut — a meaningful cost difference for high-value aerospace materials.
- Drone-industry aluminum structural parts (fuselage, arms, landing gear, etc.) similarly rely on non-ferrous circular saws as the pre-CNC sizing step.
- Data from Japan's Saitama aerospace supply chain shows a single company's equipment list including 11 automatic circular saws — proof that circular saws operate at production-scale, not as auxiliary equipment, within the aerospace supply chain.
- Six cost-benefit categories of circular saws: labor cost, cutting time, material cost, blade/equipment usage cost, post-processing cost, and handling/waiting cost.

▉ 7. Are Circular Saws Really Faster Than Traditional Sawing? Real Data from an Aerospace Materials Supplier

Beyond aircraft-parts manufacturing, a real case from UK aerospace materials supplier Gould Alloys further illustrates how high-speed circular saws affect cost.

Gould Alloys has long supplied metal materials for aerospace and high-performance industries, including aluminum, alloy steel, stainless steel, nickel alloys, titanium, and phosphor bronze. The company had extensive experience with band saws before introducing circular saws for part of its cutting operations.

For bar/billet cutting at diameters around 100 mm or below:

Cutting Method Time Required
Circular saw Under 10 seconds
Band saw Roughly 7–8 minutes

This isn't simply "faster." When large volumes of material need cutting daily, this time gap directly translates into:

- Higher daily throughput
- Lower per-part processing time
- Reduced operator waiting time
- Higher equipment utilization
- Shorter lead times
- The ability to take on short-lead-time orders

More importantly, the case notes that circular saws in this application also deliver higher cutting precision, saving roughly 1 mm of material per cut.

For high-value aerospace materials, that 1 mm is not a small number.

▉ 8. The More Expensive the Aerospace Material, the More Every Cut Counts

With ordinary carbon steel, some material waste may be acceptable. Aerospace materials are a different story — for example:

- High-strength aluminum alloys
- Titanium alloys
- Inconel
- Hastelloy
- Chromium
- Aerospace-grade bars and profiles

These materials inherently carry high value. As a result, kerf loss, remnants, cutting error, and defective parts can all become direct costs.

Italy's Friggi aerospace cutting equipment cases also show that cutting aluminum, titanium, Inconel, and Hastelloy for aerospace use is designed not only around cutting capability, but also around reducing operator time and material-handling cost.

For high-value materials, material utilization is itself productivity.

▉ 9. The Drone Industry: Non-Ferrous Circular Saws Are Also a Key Front-End Process

While the drone industry doesn't use as many complex metal components as large commercial aircraft, medium-to-large industrial drones, military drones, and high-performance UAVs still require substantial lightweight metal structures.

Aluminum alloys — lightweight, high-strength, and easy to machine — are commonly used for:

- Fuselage structure
- Brackets
- Arms
- Motor mounts
- Landing gear structure
- Connectors
- Structural components

Before entering CNC milling, drilling, or other precision machining, long aluminum bars, rods, or profiles typically need to be cut to size first. A typical workflow looks like this:

Aluminum bar/profile → KTC-NF non-ferrous automatic circular saw → sized cutting → CNC milling/drilling → surface treatment → drone structural part

In this workflow, the circular saw isn't responsible for forming the final complex geometry — it converts long stock quickly and stably into blanks ready for downstream machining. That's why automatic non-ferrous circular saws hold real value in the drone and aerospace supply chain.

▉ 10. 7075 Aerospace Aluminum: The Technical Challenge of High-Speed Circular Sawing

7075 aluminum alloy is valued in aerospace for its high strength-to-weight ratio. But "aluminum is easy to machine" doesn't mean every sawing condition is the same.

A 2025 study published in the Journal of Manufacturing Processes specifically analyzed high-speed circular sawing of 7075 aerospace aluminum, examining cutting force, vibration, chip formation, and tool wear. The study found that, under its test conditions, increasing blade rotation speed reduced cutting force and improved surface quality. （Source: ScienceDirect, https://www.sciencedirect.com/science/article/pii/S1526612525001756）

This illustrates that efficient sawing of aerospace aluminum requires the machine, blade, rotation speed, feed rate, and material properties to work together in balance.

A circular saw truly suited to aerospace and drone manufacturing isn't simply about maximizing speed — it needs to find the right balance across speed × precision × tool life × surface quality × material utilization.

▉ 11. Japan's Aerospace Supply Chain: Automatic Circular Saws Aren't Rare, Specialized Equipment

Data from Saitama Prefecture's Aerospace Industry Cluster in Japan also shows the real presence of automatic circular saws in the aerospace supply chain.

One aerospace-related company's equipment list includes 11 automatic circular sawing machines, with cutting capacity spanning roughly 15–1500 mm in length and up to about Ø85 mm in material diameter. （Source: Saitama Aerospace Industry Cluster, https://www.saitama-j.or.jp/wp-content/uploads/2019/07/saitamaaerospaceindustryclustercompaniesguidebook.pdf）

This data point is worth noting because it shows: within the aerospace supply chain, automatic circular saws can operate not as mere auxiliary equipment, but as formal production equipment deployed at real scale.

As product volumes grow, material types diversify, and lead times shrink, front-end sawing capacity begins to directly affect an entire factory's throughput.

▉ 12. What Circular Saws Really Save Factories: The Cost of the Whole Process

Looking only at equipment purchase price, a circular saw might seem like a capital expense. But for aerospace and drone parts manufacturers, what matters more is the actual machining cost per part, which can be broken down into six categories:

Cost Category How the Circular Saw Helps
① Labor cost Automatic feeding, clamping, cutting, and unloading reduce the need for continuous operator involvement
② Cutting time High-speed circular saws dramatically cut per-part cutting time (e.g., Gould Alloys: 7–8 minutes → under 10 seconds)
③ Material cost More precise cutting reduces material loss per cut (e.g., roughly 1 mm saved per cut)
④ Blade/equipment usage cost Sufficient machine rigidity reduces abnormal blade wear caused by vibration and deflection (see Kentai's Italian Chromium and Inconel cases)
⑤ Post-processing cost Low-burr, near-net-size parts reduce deburring and finishing work
⑥ Handling/waiting cost Automated sawing and material feeding reduce manual handling, repositioning, and equipment idle time

▉ 13. From "Can It Cut" to "Can It Cut Stably, Long-Term" — That's What Defines a True High-End Circular Saw

From international aerospace cases to Kentai's own customer experience, one common thread emerges:

What truly tests high-end materials isn't whether a machine can cut them — it's whether it can cut them stably.

Aerospace aluminum alloys demand speed and precision. Chromium demands high rigidity and cutting stability. Inconel demands that the machine, clamping, feed, and tooling all withstand heavy cutting loads together.

A circular saw truly suited for high-end metal machining therefore needs more than a high-speed spindle — it needs a complete mechanical structure and machining system. Machine rigidity is the foundation of all high-precision, high-load cutting.

▉ Conclusion: Aerospace Manufacturing Demands Not Just Precision, but Cost-Per-Cut

Aerospace and drone metal machining requirements can often be summed up as: precise, fast, stable. But for manufacturers, what truly matters is adding one more condition behind those three: low cost.

A high-efficiency, high-rigidity automatic circular saw creates value in multiple ways:

- Cuts faster → reduces labor and equipment time
- Cuts more precisely → reduces material loss
- Cuts more cleanly → reduces post-processing
- Sufficient machine rigidity → improves stability when machining difficult materials
- Automated feeding → increases throughput and reduces labor dependency

From European aircraft fuel-line and turbine-related components, to aerospace aluminum bars and profiles, to Kentai's actual customer machining of Chromium and Inconel — they all point to the same conclusion:

The circular saw may not be the most visible piece of equipment in aerospace manufacturing, but it can be the critical first step that shapes the cost of the entire process.

For manufacturers doing front-end processing on aluminum alloys, Chromium, Titanium, Inconel, tubes, profiles, and bars, choosing a non-ferrous circular saw with sufficient rigidity, precision, and automation isn't just about faster cutting — it's a meaningful investment in material utilization, process stability, and overall manufacturing efficiency.

Cutting costs from the very first cut is what lets everything downstream — CNC machining and the entire manufacturing flow — run faster and more efficiently.

▉ Frequently Asked Questions (FAQ)

Q1: How much faster is a circular saw than a band saw?
A: In Gould Alloys' real-world case, cutting bar stock around 100 mm in diameter or less took under 10 seconds with a circular saw, versus roughly 7–8 minutes with a band saw.

Q2: How much material can a circular saw save on aerospace parts?
A: According to real-world cases, higher-precision circular saw cutting saves roughly 1 mm of material per cut — a meaningful cost difference for high-value aerospace materials.

Q3: Why do drone parts also need non-ferrous circular saws?
A: Aluminum structural parts on drones — fuselage, arms, landing gear, and similar components — typically need to be cut to size with a non-ferrous circular saw before entering CNC milling or drilling, turning long stock into machining-ready blanks.

Q4: How widely are automatic circular saws used in the aerospace supply chain?
A: Data from Japan's Saitama aerospace supply chain shows a single company's equipment list including 11 automatic circular saws — indicating this equipment operates as formal production equipment, not as a minor auxiliary tool.

Q5: What are the main cost savings from adopting a high-rigidity circular saw?
A: Primarily six categories: labor cost, cutting time, material cost, blade/equipment usage cost, post-processing cost, and handling/waiting cost.

Further reading: Do Aerospace and Drone Components Really Need Circular Saws? From Aluminum Alloy to Chromium and Inconel — How High-Rigidity Circular Saws Cut Machining Costs (Part 1)

▉ Do Aerospace and Drone Components Really Need Circular Saws? From Aluminum Alloy to Chromium and Inconel — How High-Ri...
11/08/2026

▉ Do Aerospace and Drone Components Really Need Circular Saws? From Aluminum Alloy to Chromium and Inconel — How High-Rigidity Circular Saws Cut Machining Costs (Part 1)

This is Part 1 of a two-part series. Part 2 covers actual cutting-time data comparing circular saws with band saws, the drone-industry machining workflow, research on high-speed sawing of 7075 aerospace aluminum, the scale of automatic circular saws in Japan's aerospace supply chain, and a full breakdown of six cost-benefit categories.

▉ Summary

- The front-end sawing process in aerospace and drone manufacturing directly affects material utilization, machining time, and downstream CNC efficiency.
- International cases show precision circular saws already being used for aircraft small parts, fuel lines, and turbo blades.
- The harder the material — Chromium, Inconel, Titanium — the more demanding the requirements for machine rigidity and cutting stability.
- Kentai already has an Italian customer using a circular saw to machine Chromium (best real-world results of roughly 5–6 square meters per blade) and Inconel.
- Core takeaway: machine structural rigidity is the non-negotiable foundation of high-difficulty metal cutting.

▉ 1. Why Do Aerospace Parts Require Precision Sawing?

Structural components for aircraft and drones frequently use aluminum alloys, titanium alloys, and other high-strength metals.

For example, high-strength aluminum alloys such as 7075 are common in aerospace. Research confirms that tungsten-carbide circular saw blades can be applied to high-speed sawing of 7075 aerospace aluminum, with studies analyzing cutting forces, vibration, surface quality, and tool wear. （Source: ScienceDirect, https://www.sciencedirect.com/science/article/pii/S1526612525001756）

This means sawing aerospace materials is not generic rough machining — it requires simultaneous consideration of:

- Cutting speed
- Cutting precision
- Material loss
- Burr formation
- Tool life
- Cutting stability
- Downstream machining requirements

Before material even enters CNC machining, tighter control over front-end saw-cut dimensions reduces the amount of material that later needs to be removed.

Good sawing isn't just cutting material apart — it's saving money for every process that follows.

▉ 2. A Real Aerospace Case: How Circular Saws Are Directly Applied to Aircraft Parts

In European aerospace manufacturing, precision circular saws are already directly applied to the front-end machining of aircraft parts.

More notably, these aerospace parts don't just require ordinary steel-cutting equipment — they call for high-precision machining of aluminum alloys and other non-ferrous metals commonly used in aerospace.

In one Rohbimax aerospace application case, Kentai Machinery's KTC NF/F series non-ferrous automatic circular saws are actually deployed for sawing aircraft parts.

Its aerospace applications cover small parts, fuel lines, and turbo blades. This demonstrates that Kentai's non-ferrous circular saws are capable of handling not just general aluminum alloy stock, but also entering actual aerospace manufacturing workflows. （Source: Rohbimax, https://www.rohbitech.com/en/application-areas/aircraft-industry）

For Kentai, this is a highly significant international reference case — it proves the KTC-NF series was not designed solely for general industrial aluminum, but has already been applied to sawing parts used in aerospace manufacturing.

Aerospace parts carry particularly demanding requirements for dimensional precision, cut quality, burr control, and process stability. Real deployment on fuel lines, turbo blades, and similar aerospace components therefore represents proven validation of the machine's precision non-ferrous sawing and long-duration stability.

This is precisely the advantage of Kentai's KTC-NF series in aerospace and drone applications: not merely "suitable for aerospace materials" in theory, but backed by actual aerospace manufacturing use cases.

▉ 3. Why Does Machining Aerospace Materials Place Special Emphasis on "Machine Rigidity"?

If you're only cutting ordinary aluminum stock, machine rigidity may not be the customer's first concern. But once the material becomes:

- Chromium
- Inconel
- Titanium
- Hastelloy
- High-strength aluminum alloys

Everything changes. These materials tend to have higher strength, heat resistance, or wear resistance, requiring greater cutting loads — which also amplifies a chain reaction:

Machine vibration → blade deflection → unstable cutting → degraded surface quality → shortened blade life

For difficult materials, then: the blade itself matters, but whether the machine can stably absorb the cutting load matters just as much.

▉ 4. A Real Kentai Case: An Italian Customer Machining Chromium with a Circular Saw

Kentai already has an Italian customer using a circular saw to machine Chromium.

Chromium is a high-hardness, highly corrosion-resistant material. Cutting it demands a high standard of machine rigidity, cutting stability, and blade selection.

In actual use, the customer has been very satisfied with the cutting performance of Kentai's machine.

Even more notably, in the customer's best real-world results:

A single blade cut roughly 5–6 square meters of Chromium material.

(Note: This figure reflects a customer's best-case actual result. Real-world cutting yield will vary depending on material condition, blade specification, and cutting parameters.)

This number reflects more than just blade durability. When a blade must continuously cut a difficult material, insufficient machine rigidity causes vibration and deflection during cutting, which directly affects blade life, cut quality, and process stability.

The ability to sustain long-duration machining of this kind of material — proven through actual customer use — confirms: machine structural rigidity is the non-negotiable foundation of high-difficulty metal cutting.

▉ 5. Another Italian Case: Kentai Circular Saws Actually Machining Inconel

Beyond Chromium, Kentai also has an Italian customer using a circular saw to machine Inconel.

Inconel is a classic high-temperature nickel-based superalloy, prized for its excellent heat resistance, corrosion resistance, and high-temperature strength — making it widely used in aerospace, energy, and high-performance industrial applications.

But those same superior material properties also mean high machining difficulty.

Cutting Inconel places heavy load between the tool and workpiece, and cutting heat and tool wear are significant concerns. For a circular saw to be actually deployed in Inconel machining — and to keep operating on the customer's floor — the machine must possess sufficient:

- Structural rigidity
- Spindle stability
- Clamping capability
- Feed control
- Cutting stability

This is another important track record for Kentai circular saws in high-difficulty material machining.

▉ 6. From Chromium and Inconel to Aerospace Aluminum Alloys: The Harder the Material, the More the Machine Matters

Putting these cases together reveals a clear pattern:

Material Type Machining Priority
General aluminum stock High speed × high throughput × low material loss
Aerospace aluminum alloys Precision × surface quality × burr control × blade life
Chromium / Inconel / Titanium High rigidity × high stability × tool life × sustained machining capability

So the value of a high-end circular saw isn't simply "cutting faster." What truly matters is:

The ability to cut stably and precisely under high-load cutting conditions — and to maintain consistent quality over long periods of continuous operation.

▉ Part 1 Summary

This article covered the technical challenges of sawing aerospace materials, real-world international cases of circular saws in aerospace applications, and Kentai's actual track record machining Chromium and Inconel for Italian customers. The core conclusion: machine rigidity determines whether difficult materials can be cut stably over long production runs.

Part 2 will cover: real cutting-time data comparing circular saws to band saws, how material utilization in aerospace directly translates into cost savings, the drone-industry sawing workflow, research on high-speed sawing of 7075 aluminum, and a complete six-category cost-benefit analysis with conclusion.

Further reading: Do Aerospace and Drone Components Really Need Circular Saws? From Aluminum Alloy to Chromium and Inconel — How High-Rigidity Circular Saws Cut Machining Costs (Part 2)

▉ Frequently Asked Questions (FAQ)

Q1: What kinds of aerospace parts are circular saws mainly used to machine?
A: International cases show precision circular saws applied to front-end cutting of aircraft small parts, fuel lines, and turbo blades.

Q2: Why does machining Chromium and Inconel require an especially high-rigidity machine?
A: These materials are high-strength, heat-resistant, and wear-resistant, creating heavy cutting loads. Insufficient machine rigidity causes vibration and blade deflection, degrading surface quality and blade life.

Q3: What real-world cases does Kentai have in high-difficulty material machining?
A: Kentai has Italian customers actually using circular saws to machine Chromium (best real-world results around 5–6 square meters per blade) and Inconel.

Q4: What is the KTC-NF circular saw?
A: KTC-NF is Kentai's high-speed, automatic circular saw series developed for aluminum alloys and other non-ferrous metals.

▉ 航太與無人機零件也需要圓鋸機？從鋁合金、Chromium 到 Inconel，看高剛性圓鋸如何降低加工成本（下）本文為系列文章下篇。 上篇請見：《航太與無人機零件也需要圓鋸機？從鋁合金、Chromium 到 Inconel，看高剛性圓鋸...
11/08/2026

▉ 航太與無人機零件也需要圓鋸機？從鋁合金、Chromium 到 Inconel，看高剛性圓鋸如何降低加工成本（下）

本文為系列文章下篇。 上篇請見：《航太與無人機零件也需要圓鋸機？從鋁合金、Chromium 到 Inconel，看高剛性圓鋸如何降低加工成本（上）》— 內容涵蓋航太材料鋸切的技術挑戰、國際航太案例，以及寬泰義大利客戶 Chromium 與 Inconel 的實際加工實績。

▉ 摘要

- 英國航太材料供應商 Gould Alloys 的實際案例顯示，同樣的棒材切割工作，圓鋸不到 10 秒即可完成，帶鋸則需約 7～8 分鐘。
- 圓鋸切割精度較高，每刀可節省約 1 mm 材料，對高價值航太材料而言是可觀的成本差異。
- 無人機產業的鋁合金結構件（機身、機臂、起落架等）同樣仰賴非鐵金屬圓鋸機作為 CNC 加工前的定尺切割設備。
- 日本埼玉縣航太供應鏈資料顯示，單一企業設備清單中即列有 11 台自動圓鋸機，證明圓鋸機在航太供應鏈中具有正式生產設備的規模，而非輔助性設備。
- 圓鋸機的六大成本效益：人工成本、切割時間、材料成本、鋸片與設備使用成本、後加工成本、搬運與等待成本。

▉ 七、圓鋸比傳統鋸切更快？航太材料供應商的實際數據

除了飛機零件製造之外，英國一家航太材料供應商 Gould Alloys 的實際案例，也很好地說明了高速圓鋸對成本的影響。

Gould Alloys 長期供應航太與高性能產業使用的金屬材料，包括鋁、合金鋼、不鏽鋼、鎳合金、鈦以及磷青銅等。該公司原本具有大量帶鋸使用經驗，後來導入圓鋸進行部分材料的切割。（資料來源：

在直徑約 100 mm 以下的棒材／Billet 切割案例中：

切割方式　所需時間
圓鋸　不到 10 秒
帶鋸　約 7～8 分鐘

這不是單純「速度比較快」而已。如果每天需要切割大量材料，切割時間的差距會直接轉化為：

- 每日產能增加
- 每件產品加工時間下降
- 人員等待時間降低
- 設備利用率提高
- 交期縮短
- 可以承接短交期訂單

更重要的是，該案例還提到，圓鋸在這類應用中具有較高的切割精度，每刀可以節省約 1 mm 的材料。

對高價值航太材料而言，這 1 mm 並不是小數字。

▉ 八、航太材料越貴，「每一刀少浪費一點」就越重要

一般碳鋼材料即使多浪費一些，也許還可以接受。但航太材料的情況不同，例如：

- 高強度鋁合金
- 鈦合金
- Inconel
- Hastelloy
- Chromium
- 航太級棒材與型材

本身就具有較高的材料價值。因此，鋸切時產生的鋸縫（Kerf）＋端料（Remnant）＋切割誤差＋不良品，都可能成為直接成本。

義大利 Friggi 的航太切割設備案例也顯示，航太用鋁、鈦、Inconel、Hastelloy 等材料的切割，除了追求切割能力之外，也會從降低操作人員時間與材料搬運成本的角度進行設備設計。

對高價值材料而言，材料利用率本身就是生產力。

▉ 九、無人機產業：非鐵金屬圓鋸機也是重要的前段設備

無人機產業雖然不像大型民航飛機一樣使用大量複雜金屬零件，但中大型工業無人機、軍用無人機與高性能 UAV，仍然需要大量輕量化金屬結構。

其中鋁合金具有重量輕、強度高、加工性佳等優勢，因此可應用於：

- 機身結構
- 支架
- 機臂
- 馬達座
- 起落架結構
- 連接件
- 機械結構件

這些零件在進入 CNC 銑削、鑽孔或其他精密加工之前，往往需要先將長條鋁材、棒材或型材進行定尺切割。典型的加工流程如下：

鋁棒／鋁型材 → KTC-NF 非鐵金屬自動圓鋸機 → 定尺切割 → CNC 銑削／鑽孔 → 表面處理 → 無人機結構零件

在這個流程中，圓鋸機並不負責製造最後的複雜幾何形狀，而是負責把長料快速、穩定地轉換成適合後續加工的 Blank。因此，非鐵金屬自動圓鋸機對無人機與航太零件供應鏈具有實際價值。

▉ 十、7075 航太鋁合金：高速圓鋸的技術挑戰

7075 鋁合金具有高強度重量比，因此廣泛受到航太產業重視。但「鋁合金好加工」並不代表所有鋸切條件都一樣。

2025 年發表於 Journal of Manufacturing Processes 的研究，專門針對 7075 航太鋁合金的高速圓鋸加工進行分析，研究內容包括鋸切力、振動、切屑形成與刀具磨耗。研究指出，在其實驗條件下，提高鋸片轉速可降低鋸切力並改善表面品質。（資料來源：ScienceDirect, https://www.sciencedirect.com/science/article/pii/S1526612525001756）

這也說明：航太鋁合金的高效率鋸切，需要機台、鋸片、轉速、進給與材料特性彼此匹配。

因此，真正適合航太與無人機產業的圓鋸機，不是單純追求「轉速越快越好」，而是要在速度 × 精度 × 刀具壽命 × 表面品質 × 材料利用率之間找到最佳平衡。

▉ 十一、日本航太供應鏈：自動圓鋸機並不是少數特殊設備

日本埼玉縣的 Aerospace Industry Cluster 產業資料，也可以看到自動圓鋸在航太供應鏈中的實際存在。

其中一家航太相關企業的設備清單中，列有 11 台 Automatic Circular Sawing Machine，加工能力涵蓋約 15～1500 mm 的長度，以及最大約 Ø85 mm 的材料。
資料來源：Saitama Aerospace Industry Cluster, https://www.saitama-j.or.jp/wp-content/uploads/2019/07/saitamaaerospaceindustryclustercompaniesguidebook.pdf）

這個資料值得注意，因為它說明：在航太供應鏈中，自動圓鋸機可以不是單純的輔助設備，而是具有一定設備數量與產能規模的正式生產設備。

當產品數量增加、材料種類增加、交期縮短時，前段鋸切能力就會開始直接影響整個工廠的產能。

▉ 十二、圓鋸機真正替工廠省下的是「整個製程的成本」

如果只看設備採購價格，圓鋸機似乎是一筆資本支出。但對航太與無人機零件製造商而言，更重要的其實是每一件零件的實際加工成本，可以從以下六個方向計算：

成本項目　圓鋸機的效益
① 人工成本　自動送料、夾持、切割與出料，降低操作人員持續介入的需求
② 切割時間　高速圓鋸大幅縮短單件切割時間（如 Gould Alloys 案例：7～8 分鐘 → 不到 10 秒）
③ 材料成本　更精準的切割降低每刀材料損耗（如每刀約可節省 1 mm 材料）
④ 鋸片與設備使用成本　機台剛性足夠可降低振動、偏擺造成的鋸片異常磨耗（如寬泰義大利 Chromium、Inconel 案例）
⑤ 後加工成本　低毛刺、貼近尺寸的零件可減少去毛刺、修整等額外工序
⑥ 搬運與等待成本　自動化鋸切與材料送料，減少人工搬運、重複定位與設備等待時間

▉ 十三、從「切得動」到「長時間穩定切削」，才是真正的高階圓鋸

從國際航太產業案例，到寬泰目前實際客戶的加工經驗，可以看到一個共同點：

高階材料真正考驗的不是機器能不能切，而是能不能穩定地切。

航太鋁合金需要高速與精度；Chromium 需要高剛性與切削穩定性；Inconel 則需要機台、夾持、進給與刀具共同承受高負荷加工。

因此，一台真正適合高階金屬加工的圓鋸機，需要具備的不只是高速主軸，而是完整的機械結構與加工系統。機台剛性，是所有高精度、高負荷切削的基礎。

▉ 結論：航太製造追求的不只是精度，更是「每一刀的成本」

航太與無人機產業對金屬加工的要求，往往可以濃縮成：精準、快速、穩定。但對製造商而言，真正重要的是在這些條件後面再加上：低成本。

一台高效率、高剛性的自動圓鋸機，可以從多個方向創造價值：

- 切得更快 → 降低人工與設備時間
- 切得更準 → 降低材料損耗
- 切得更乾淨 → 減少後加工
- 機台剛性足夠 → 提升高難度材料加工穩定性
- 自動化送料 → 提高產能並降低人力依賴

從歐洲航太零件的燃油管路與渦輪相關零件，到航太鋁合金棒材、型材，再到寬泰客戶實際加工的 Chromium 與 Inconel，都說明了同一件事：

圓鋸機不是航太製造中最顯眼的設備，卻可能是影響整個製程成本的重要第一步。

對使用鋁合金、Chromium、Titanium、Inconel、管材、型材與棒材進行前段加工的製造商而言，選擇具備足夠剛性、精度與自動化能力的非鐵金屬圓鋸機，不只是提高切割速度，更是提升材料利用率、加工穩定性與整體製造效率的重要投資。

從第一刀開始降低成本，才能讓後面的 CNC 加工與整個製造流程真正跑得更快、更有效率。

▉ 常見問題（FAQ）

Q1：圓鋸和帶鋸在切割速度上差多少？
A：以 Gould Alloys 的實際案例為例，直徑約 100 mm 以下的棒材切割，圓鋸不到 10 秒即可完成，帶鋸則需約 7～8 分鐘。

Q2：圓鋸機能為航太材料節省多少材料損耗？
A：根據實際案例，較高精度的圓鋸切割每刀可節省約 1 mm 材料，對高價值航太材料而言是可觀的成本差異。

Q3：無人機零件加工為什麼也需要非鐵金屬圓鋸機？
A：無人機的機身、機臂、起落架等鋁合金結構件，在進入 CNC 銑削或鑽孔等精密加工前，通常需要先用非鐵金屬圓鋸機進行定尺切割，把長料轉換成適合加工的 Blank。

Q4：自動圓鋸機在航太供應鏈中的使用規模有多大？
A：以日本埼玉縣航太供應鏈資料為例，單一企業的設備清單中就列有 11 台自動圓鋸機，顯示這類設備在航太供應鏈中屬於正式生產設備，而非少數輔助設備。

Q5：導入高剛性圓鋸機主要能降低哪些成本？
A：主要可從六個方向降低成本：人工成本、切割時間、材料成本、鋸片與設備使用成本、後加工成本，以及搬運與等待成本。

延伸閱讀：《航太與無人機零件也需要圓鋸機？從鋁合金、Chromium 到 Inconel，看高剛性圓鋸如何降低加工成本（上）》

▉ 航太與無人機零件也需要圓鋸機？從鋁合金、Chromium 到 Inconel，看高剛性圓鋸如何降低加工成本（上）本文為系列文章上篇。 下篇請見：《航太與無人機零件也需要圓鋸機？從鋁合金、Chromium 到 Inconel，看高剛性圓鋸...
11/08/2026

▉ 航太與無人機零件也需要圓鋸機？從鋁合金、Chromium 到 Inconel，看高剛性圓鋸如何降低加工成本（上）

本文為系列文章上篇。 下篇請見：《航太與無人機零件也需要圓鋸機？從鋁合金、Chromium 到 Inconel，看高剛性圓鋸如何降低加工成本（下）》— 內容涵蓋圓鋸與帶鋸的實際切割時間數據、無人機產業應用流程、7075 鋁合金高速鋸切研究、日本航太供應鏈設備規模，以及完整的六大成本效益分析。

▉ 摘要

- 航太與無人機製造的前段鋸切製程，直接影響材料利用率、加工時間與後續 CNC 加工效率。
- 國際案例顯示，精密圓鋸已實際應用於飛機的 fuel lines（燃油管路）、turbo blades（渦輪葉片）與 small parts 等零件的前段加工。
- 材料難度越高（如 Chromium、Inconel、Titanium），對機台剛性與切削穩定性的要求越高。
- 寬泰已有義大利客戶實際使用圓鋸機加工 Chromium（單片鋸片最佳成果約可切削 5–6 平方公尺）與 Inconel。
- 核心結論：機台結構剛性，是高難度金屬切削不可忽略的基礎。

▉ 一、航太零件為什麼需要精密鋸切？

飛機與無人機的結構零件，經常使用鋁合金、鈦合金以及各種高強度金屬材料。

例如航太產業常見的鋁合金材料包括 7075 等高強度鋁合金，而研究也證實，碳化鎢圓鋸片可以應用於 7075 航太鋁合金的高速鋸切；相關研究更進一步分析了鋸切力、振動、表面品質與刀具磨耗等因素。（資料來源：ScienceDirect, https://www.sciencedirect.com/science/article/pii/S1526612525001756）

這代表航太材料的鋸切並不是一般性的粗加工，而是需要同時考慮：

- 切割速度
- 切割精度
- 材料損耗
- 毛刺
- 刀具壽命
- 切削穩定性
- 後續加工需求

尤其當材料進入 CNC 加工之前，如果前段鋸切尺寸控制得越精準，就越有機會減少後續加工需要去除的材料量。

好的鋸切，不只是把材料切斷，而是在幫後面的加工製程省錢。

▉ 二、真實航太案例：圓鋸如何直接應用於飛機零件？

在歐洲的航太製造案例中，精密圓鋸已經直接應用於飛機零件的前段加工。

更值得注意的是，這類航太零件並非只需要一般鋼材的鋸切設備，而是涉及鋁合金及其他非鐵金屬等航太常用材料的高精度加工。

Rohbimax 的航太產業應用案例中，實際採用寬泰機械（Kentai Machinery）的 KTC NF/F 系列非鐵金屬自動圓鋸機，應用於飛機零件的鋸切加工。

其航太應用涵蓋 Small Parts、Fuel Lines（燃油管路）以及 Turbo Blades（渦輪葉片）等零件。這些應用顯示，寬泰的非鐵金屬圓鋸機不僅能夠處理一般鋁合金材料，也能實際進入航空製造的零件加工流程。（資料來源：Rohbimax, https://www.rohbitech.com/en/application-areas/aircraft-industry）

對寬泰而言，這是一項非常重要的國際應用實績。因為它證明 KTC-NF 系列並非僅針對一般工業鋁材所設計，而是已經實際應用於航空製造相關零件的鋸切加工。

尤其航太零件對尺寸精度、切割品質、毛刺控制及加工穩定性都有較高要求，因此能夠實際應用於 Fuel Lines、Turbo Blades 等航空零件，也代表機台在非鐵金屬精密鋸切與長時間穩定加工方面具備實際驗證。

這也正是寬泰 KTC-NF 系列在航太與無人機產業應用上的重要優勢：不是單純「適合航太材料」，而是已經有實際的航太製造應用案例。

▉ 三、為什麼航太材料加工特別重視「機台剛性」？

如果只是切割一般鋁材，機台剛性可能不會是客戶最先考慮的問題。但當材料進一步變成：

- Chromium
- Inconel
- Titanium
- Hastelloy
- 高強度鋁合金

情況就完全不同。這些材料往往具有較高的強度、耐熱性或耐磨耗性，切削時需要更大的切削負荷，也更容易放大以下連鎖反應：

機台振動 → 鋸片偏擺 → 切削不穩定 → 表面品質下降 → 鋸片壽命縮短

因此，對高難度材料而言：鋸片本身很重要，但機台能不能穩定承受切削負荷，同樣重要。

▉ 四、寬泰實際案例：義大利客戶使用圓鋸加工 Chromium

寬泰已有義大利客戶使用圓鋸機進行 Chromium（鉻）材料加工。

Chromium 屬於高硬度、高耐蝕性的材料，實際切削時對機台剛性、切削穩定性以及鋸片選擇都具有較高要求。在實際使用過程中，客戶對寬泰機台的切削效果相當滿意。

更值得注意的是，在客戶實際使用中的最佳加工成果裡：

單片鋸片約可切削 5–6 平方公尺的 Chromium 材料。

（說明：此數據為客戶實際最佳成果案例，實際切削量會依材料狀態、鋸片規格與加工條件而有所差異。）

這項數據反映的並不只是鋸片本身的耐用度。當鋸片需要持續切削高難度材料時，如果機台本身剛性不足，切削過程產生的振動與偏擺會直接影響鋸片壽命、切削品質與加工穩定性。

因此，能夠穩定完成這類材料的長時間加工，也從實際客戶使用經驗證明：機台結構剛性，是高難度金屬切削不可忽略的基礎。

▉ 五、另一個義大利案例：寬泰圓鋸實際加工 Inconel

除了 Chromium 之外，寬泰在義大利也有客戶使用圓鋸機加工 Inconel。

Inconel 是典型的高溫鎳基超合金，具有優異的耐熱、耐腐蝕與高溫強度，因此廣泛應用於航空、能源與高性能工業領域。但這些優異的材料特性，同時也意味著加工難度高。

切削 Inconel 時，刀具與工件之間的負荷高，切削熱與刀具磨耗也是重要問題。因此，當一台圓鋸機能夠實際投入 Inconel 加工，並在客戶端持續使用，就代表機台本身需要具備足夠的：

- 結構剛性
- 主軸穩定性
- 夾持能力
- 進給控制
- 切削穩定性

這也是寬泰圓鋸機在高難度材料加工上的重要實績。

▉ 六、從 Chromium、Inconel 到航太鋁合金：材料越難切，機台越重要

把這些案例放在一起，會發現一個非常清楚的邏輯：

材料類型　 加工重點
一般鋁材　 高速 × 高產能 × 低材料損耗
航太鋁合金　精度 × 表面品質 × 毛刺控制 × 鋸片壽命
Chromium／Inconel／Titanium　高剛性 × 高穩定性 × 刀具壽命 × 持續加工能力

所以，高階圓鋸機的價值並不是單純追求「切得快」。真正重要的是：

在高負荷切削條件下，仍然能夠穩定地切、精準地切，而且長時間維持一致的加工品質。

▉ 上篇小結

本篇說明了航太材料鋸切的技術挑戰、國際航太案例中圓鋸機的實際應用，以及寬泰在義大利客戶端 Chromium 與 Inconel 加工的實績，核心結論是機台剛性決定了高難度材料能否穩定、長時間加工。

下篇將接續說明：圓鋸與帶鋸的實際切割時間數據對比、航太材料利用率如何直接轉化為成本、無人機產業的鋸切應用流程、7075 鋁合金高速鋸切研究，以及完整的六大成本效益分析與結論。

延伸閱讀：《航太與無人機零件也需要圓鋸機？從鋁合金、Chromium 到 Inconel，看高剛性圓鋸如何降低加工成本（下）》

▉ 常見問題（FAQ）

Q1：圓鋸機在航太製造中主要用來加工哪些零件？
A：國際案例顯示，精密圓鋸可應用於飛機的 small parts、fuel lines（燃油管路）與 turbo blades（渦輪葉片）等前段材料切割。

Q2：為什麼加工 Chromium、Inconel 這類材料特別需要高剛性機台？
A：這類材料強度高、耐熱耐磨，切削負荷大，若機台剛性不足會產生振動與鋸片偏擺，進而影響表面品質與鋸片壽命。

Q3：寬泰在高難度材料加工上有哪些實際案例？
A：寬泰在義大利有客戶實際使用圓鋸機加工 Chromium（單片鋸片最佳成果約可切削 5–6 平方公尺）與 Inconel。

Q4：什麼是 KTC-NF 圓鋸機？
A：KTC-NF 是寬泰針對鋁合金及其他非鐵金屬材料所開發的高速、自動化圓鋸機。

Metal Cutting: A Complete Guide to Techniques, Methods, and Modern TrendsMetal cutting is the first step in every metal ...
07/08/2026

Metal Cutting: A Complete Guide to Techniques, Methods, and Modern Trends

Metal cutting is the first step in every metal fabrication process. Whatever a customer needs machined — precision aerospace components, automotive drive shafts, or everyday metal furniture — the very first operation is always metal cutting: trimming raw metal bars, tubes, or profiles and removing excess material. It is the starting point for every turning, milling, forging, and assembly operation that follows.

As global manufacturing faces labor shortages and a push toward smart automation, metal cutting is rapidly evolving from a labor-intensive craft that relies on "veteran machinist experience" into a data-driven, highly automated core process. This article breaks down what metal cutting involves, its common methods, and the latest industry trends.
________________________________________
1. What Is Metal Cutting?
Definition: Metal cutting is the process of removing excess material from a metal workpiece — or cutting it to a fixed length — through relative motion between the tool and the material, producing the shape, dimensions, and surface finish required by the design.
Common metal cutting methods include:
• Sawing (Circular Sawing): The very first stage of the process, using a circular metal saw to quickly cut long raw stock to fixed lengths, setting the precision baseline for all downstream operations.
• Turning: A fixed cutting tool removes material from a rotating cylindrical or rod-shaped workpiece — ideal for drive shafts, bearing steel, and other round, symmetrical parts.
• Milling: A rotating milling cutter progressively removes material from a stationary or moving workpiece, used for flat surfaces, grooves, and complex contours.
• Drilling and Boring: Creates holes in a metal workpiece or refines an existing bore's internal diameter.
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2. Three Key Factors That Determine Metal Cutting Quality
During cutting, metal is subjected to intense pressure from the tool, generating deformation, friction, and heat. Maintaining cutting quality and extending equipment life depends on three factors:
1. Cutting Motion and Parameters: The relative speed and feed rate between the workpiece and the tool must be precisely matched. Ferrous metals and non-ferrous metals (such as aluminum and copper) require very different cutting speeds.
2. Tool Material and Selection: Different metal hardness levels call for different tools. TCT (tungsten carbide-tipped) blades are commonly used for solid steel bars or high-hardness alloys, while HSS (high-speed steel) blades are typically paired with thin-walled tubing.
3. Tolerance and Stability Control: Modern high-end automated cutting equipment — such as fully automatic CNC circular saws — can consistently hold cutting tolerances within ±0.1 mm, delivering zero-error blanks for downstream CNC lathes or forging dies.
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3. Three Modern Trends Transforming Metal Cutting
Facing global supply chain volatility and labor shortages, the metal cutting industry is undergoing a major technological shift:
Automation of Loading and Cutting
Modern factories increasingly deploy fully automated cutting systems that combine automatic bundle loaders with CNC control. This enables one operator to manage 3 to 5 machines simultaneously. Automated unloading and continuous cycling significantly increase Overall Equipment Effectiveness (OEE), and in some cases even support unmanned "lights-out" night shifts.
From Experience-Based Craft to Data-Driven Intelligence
Traditional cutting relied heavily on a veteran machinist's ability to judge feed speed by "listening to the sound and watching the chips." Modern intelligent cutting equipment now includes built-in material databases and real-time monitoring systems. Operators simply enter the metal type and dimensions on a touchscreen HMI, and the system automatically matches the optimal cutting parameters — shrinking a skill that once took years to master down to a learning curve of just a few days for new operators.
Integrating Environmental and Sustainability (ESG) Standards
As international environmental standards tighten, modern metal cutting facilities are placing greater emphasis on workplace conditions — for example, adopting Minimum Quantity Lubrication (MQL) technology or oil-mist recovery systems. These effectively prevent metal chips from sticking and tools from overheating, while filtering fine oil mist to reduce facility pollution.
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Frequently Asked Questions
Q1: What are the common metal cutting methods? The main methods are sawing, turning, milling, and drilling/boring. Sawing is typically the first stage, cutting stock to fixed lengths; turning suits round, symmetrical parts; milling handles flat surfaces, grooves, and complex contours.
Q2: What tolerance can a CNC automatic circular saw achieve? High-end CNC fully automatic circular saws can consistently hold cutting tolerances within ±0.1 mm.
Q3: What's the difference between TCT and HSS saw blades? TCT (tungsten carbide-tipped) blades are best suited for solid steel bars and high-hardness alloys, while HSS (high-speed steel) blades are commonly used for thin-walled tubing. The choice depends on the workpiece's material hardness and wall thickness.
Q4: What benefits does automated cutting bring to a factory? It allows one operator to manage 3 to 5 machines at once, and automated unloading with continuous cycling significantly raises Overall Equipment Effectiveness (OEE) — in some cases enabling unmanned night-shift production.
Q5: How do smart cutting systems lower the skill barrier for new operators? Built-in material databases and real-time monitoring let operators simply input the metal type and dimensions on a touchscreen, and the system automatically selects optimal cutting parameters — cutting the training time from years down to just a few days.
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Conclusion: Mastering the First Cut Builds Manufacturing Competitiveness
Metal cutting is not just the first step in manufacturing — it's the critical factor that determines downstream production efficiency, material utilization, and finished product yield. Whether upgrading to automated circular saws to address labor shortages and reduce labor costs, or using precise tolerance control to minimize waste of costly raw materials, companies that continuously optimize this first cutting stage are the ones best positioned to compete on both quality and efficiency in modern smart manufacturing.
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Further reading
Which Industries Are Metal Circular Saws Suitable For? A Complete Guide to Key Applications
https://www.kentai.com.tw/knowledge/metal-circular-saw-applications.html
How to Choose Circular Saw Blades and Machines? A Complete Guide to HSS vs. TCT Differences, Machine Rigidity, and Cutting Fluid Applications
https://www.kentai.com.tw/knowledge/how-to-choose-circular-saw-blades-and-machines.html

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