Proceedings of the Korean Operations and Management Science Society Conference (한국경영과학회:학술대회논문집)

The Korean Operations Research and Management Science Society (한국경영과학회)
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Turning STEP- NC paradigm and delta volume decomposition

선반용 STEP-NC 패러다임 및 델터볼륨 분해 알고리즘

  • 이병언 (포항공과대학교 산업공학과 국가지정 STEP-NC 연구실) ;
  • 정대혁 (포항공과대학교 산업공학과 국가지정 STEP-NC 연구실) ;
  • 서석환 (포항공과대학교 산업공학과 국가지정 STEP-NC 연구실)
  • Published : 2003.05.01
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Abstract

ISO 14649 is a new interface (or language) standard for the CAD-CAM -CNC chain, currently under establishment by ISO TC184 SCI and SC4 . Upon completion, it will replace ISO 6983, so called M amp; G codes used for CNC since 1950' s. As the new language is being established, a new CNC controller called STEP-CNC (STEP­compliant CNC), capable of carrying out various intelligent tasks using the new language as an input, receives worldwide attention. In this paper, we present a distributed architecture for STEP-NC system based on the generic paradigm of STEP-NC. The STEP-NC system is consisted of 3 sub-systems: 1) CGS (Code Generation System), 2) CES (Code Edit System), and 3) ACS (Autonomous Control System). Also presented in this paper is algorithm for delta volume decomposition, a crucial algorithm for developing CGS. First method is based on the cutting tool and the second method is based on the turning features commonly used in the shop floor. An illustrative example is given to compare the two methods, and to illustrate usage scenario of the delta volume in the turning STEP- NC system under development.

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