Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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A Study of Machining Error Compensation for Tool Deflection in Side-Cutting Processes using Micro End-mill

측면가공에서 마이크로 엔드밀의 공구변형에 의한 절삭가공오차 보상에 관한 연구

  • 전두성 (인천대학교 기계공학과) ;
  • 서태일 (인천대학교 기계공학과) ;
  • 윤길상 (한국생산기술연구원 정밀금형팀)
  • Published : 2008.04.15
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Abstract

This paper presents a machining error compensation methodology due to deflection of micro cutting tools in side cutting processes. Generally in order to compensate for tool deflection errors it is necessary to carry out a series of simulations, cutting force prediction, tool deflection estimation and compensation method. These can induce numerous calculations and expensive costs. This study proposes an improved approach which can compensate for machining errors without simulation processes concerning prediction of cutting force and tool deflection. Based on SEM images of test cutting specimens, polynomial relationships between machining errors and corrected tool positions were induced. Taking into account changes of cutting conditions caused by tool position variation, an iterative algorithm was applied in order to determine corrected tool position. Experimental works were carried out to validate the proposed approach. Comparing machining errors of nominal cutting with those of compensated cutting, overall machining errors could be remarkably reduced.

Keywords

References

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