仕上げ加工

定義

小さな切削量で寸法と表面品質を得る加工。

フロントマターの定義を基準にし、段取り・加工・検査で同じ意味として扱います。

公式/ルール

• Finish machining prioritizes geometry, surface quality, and repeatability over maximum removal rate.
• Use a repeatable finishing allowance so the final pass sees stable engagement and heat input.

代表的な範囲

• Typical finish allowance should be stable enough that the last pass removes a consistent skin, not mixed stock and air-cut.
• Prioritize predictable heat, runout, and tool deflection over cycle-time reduction in the final pass.

現場シナリオ

• Reserve the final pass for stable coolant, runout, and thermal condition after roughing heat is reduced.
• Use a lighter finish step when wall spring-back or burr formation appears near the final geometry.

よくある問題/トラブルシュート

• If finish size drifts late in the run, check heat growth, wear compensation, and coolant stability first.
• If surface quality drops after a parameter increase, confirm runout and chip evacuation before reducing speed blindly.

関連ツール

• Surface Roughness Calculator
• Feed Speed Calculator