06/17/2026
⚙️ 𝗪𝗵𝘆 𝗔𝗿𝗲 𝗖𝗮𝘀𝘁𝗶𝗻𝗴𝘀 𝗢𝗳𝘁𝗲𝗻 𝗠𝗮𝗱𝗲 𝗢𝘃𝗲𝗿𝘀𝗶𝘇𝗲𝗱?
One thing many people outside the casting industry do not realize is that certain areas of a casting are intentionally produced larger than the final required dimensions.
This extra material is known as machining allowance.
Why?
Because machining allows critical surfaces, holes, and mounting locations to be finished to precise dimensions and tolerances after the casting process is complete.
Without machining allowance, there may not be enough material available to achieve the final specifications required by the application.
In other words, some castings are designed to be bigger before they can become exact.
It is one of the many details that goes into producing quality castings for demanding industrial applications.
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