Contouring Tool Path Generation for Dieless CNC Forming using STL Offset

STL offset을 이용한 다이레스 CNC 포밍용 등고선 공구경로 생성

  • 강재관 (경남대학교 기계자동화공학부) ;
  • 최동우 (경남대학교 대학원 메카트로닉스)
  • Published : 2006.02.01

Abstract

Dieless CNC forming is an innovative technology which can form various materials with complex shape by numerically controlled incremental forming process. In this paper, a method of NC tool path generation based on an STL file for dieless CNC forming is proposed. Tool trajectory adopts the principle of layered manufacturing in rapid prototyping technology, but it is necessary to consider STL offset because of the ball shaped tool with a radius. Vertex offset method which enables to compute offset STL directly is engaged for STL offset. The offseted STL is sliced by cutting planes to generate contouring tool path. Algorithm is implemented on a computer and experimented on a dieless CNC forming machine to show its validity.

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