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このCNC部品を材料ロットまで遡及できますか?

このCNC部品を材料ロットまで遡及できますか?

CNC material and dimensional traceability is the evidence chain that connects a shipped part to the stock, drawing revision, manufacturing route, inspection results, and release records used to make it.…

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1つの良品は生産開始のゴーサインではない

1つの良品は生産開始のゴーサインではない

First article inspection for CNC machined parts is a production-release checkpoint, not a ceremonial report. It confirms that the drawing,…

Which Inspection Method Fits Your CNC Part?

Which Inspection Method Fits Your CNC Part?

CMM, optical comparator, and manual inspection are not interchangeable checkpoints. Each method answers a different measurement question. A CMM is…

CNC Setup and Tooling Costs: What Buyers Should Separate

CNC Setup and Tooling Costs: What Buyers Should Separate

CNC setup and tooling costs are often hidden inside a unit price, even though they can decide whether a short…

CNC加工の部品あたりコストを実際に変えるものは何か?

CNC加工の部品あたりコストを実際に変えるものは何か?

CNC machining cost per part calculation is more useful when it separates recurring production cost from one-time preparation and risk.…

ISO 2768 on CNC Drawings: Where General Tolerances Stop

ISO 2768 on CNC Drawings: Where General Tolerances Stop

ISO 2768 for CNC machining drawings is a way to assign general tolerances to dimensions that do not have individual…

Why Good Parts Still Fail Together: CNC Tolerance Stack-Up

Why Good Parts Still Fail Together: CNC Tolerance Stack-Up

CNC tolerance stack-up analysis for assemblies explains why several individually acceptable parts can still create a tight, loose, misaligned, or…

When a Fit Fails, the Bore and Shaft Share the Blame

When a Fit Fails, the Bore and Shaft Share the Blame

CNC hole and shaft fit design should begin with the assembly job, not with a familiar letter-number fit copied from…

Why Good CNC Parts Start with Better GD&T Drawings

Why Good CNC Parts Start with Better GD&T Drawings

GD&T drawing requirements for CNC machining are not just a list of symbols. They are the link between what a…

Burrs, Cracks or Warping: Diagnose CNC Plastic Rejects

Burrs, Cracks or Warping: Diagnose CNC Plastic Rejects

Before anyone sands an edge or adjusts an offset, keep one rejected part untouched. Its burr, fracture surface or free-state…