Slash CNC Machining Quotes from China with Design-for-Manufacturing Tips

Cutting part costs on CNC machining starts in the drawing stage, not the negotiation. Optimizing your design before you send it out for quotes can yield bigger savings than haggling over price. Standardize internal corner radii to match common end-mill sizes. This lets shops use larger, faster tools instead of slowing down with a smaller cutter or adding a secondary EDM operation. Reduce deep, narrow cavities where possible or clearly flag unavoidable ones at the RFQ stage. Shallower, wider pockets let machinists run shorter, stiffer tools at higher feed rates. Also review tolerances, minimize unique setups, and standardize hole sizes. A focused DFM review can deliver substantial cycle-time savings and lower CNC quotes from any supplier.

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