CNC machining guides for engineers and buyers: compare milling and turning processes, 5-axis options, machining costs and drawing requirements for custom parts.
Use the categories above to move between machining fundamentals, drawing preparation, material choices and inspection strategy.
CNC turning vs CNC milling is a geometry decision, not a quality ranking. Quote CNC turning when the part is built around a rotational axis: OD, ID, shoulders, grooves, tapers, and threads on 6061-T6,…
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How to choose a CNC shop in China is a process-fit test, not a hunt for the lowest line. If the part is a 6061-T6 housing with pockets, you need milling. If it is…
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A CNC machining China DFM review before quote is a written pass over the drawing before anyone types a unit price. The reviewer checks tool access, L/D in pockets, inside corner radii vs end…
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CNC machining China NDA and IP protection is a file-handling system, not a PDF you never read. Sign a mutual NDA (or the shop's) before you send STEP solids of unreleased 6061 housings or…
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Choose 5-axis simultaneous vs 3+2 machining by asking whether the cutter must tilt while it is still in the cut. Simultaneous 5-axis moves X, Y, and Z together with two rotary axes, which is…
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5-axis indexed machining explained in shop terms: the rotary axes move the part to a pose, lock, then the mill cuts with X, Y, and Z only. That is 3+2, not simultaneous 5-axis. Use…
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Compare 5-axis CNC machining cost vs 3-axis as a stack of hours, not as a higher machine sticker. 3-axis usually wins on prismatic plates, two-vise boxes, and lots large enough to amortize a fixture.…
Read guideA 5-axis CNC quote checklist is the RFQ packet that lets a shop choose 3+2 versus simultaneous paths without guessing. Minimum files: STEP (or IGES / X_T) plus a PDF with revision, ASME Y14.5…
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When to use 5-axis CNC for housings is a datum, stickout, and port-access test, not a part-name test. Use 5-axis when assembly datums span several faces, when deep pockets need a short tool that…
Read guideWhat to include in a China CNC RFQ is the drawing package plus the commercial fields that change the number. Attach STEP and PDF, revision, alloy and temper, finish, quantity breaks, and the inspection…
Read guideSend the material, quantity and critical features you already know. YXT will help identify the next practical review step.
