정삭

정의

작은 절삭량으로 치수와 표면 품질을 확보하는 단계.

프론트매터의 정의를 기준으로 삼고 셋업·가공·검사 전 과정에서 같은 의미로 사용합니다.

공식 / 규칙

• 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.

대표 범위

• 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.

현장 시나리오

• 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.

일반 오류 / 문제 해결

• 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.

관련 도구

• Surface Roughness Calculator
• Feed Speed Calculator