A design-by-feature approach to step-compliant NC programming

作者：Liu Riliang^*; Zhang Xianzhi; Zhang Chengrui; Wang Lu

来源：International Journal of Innovative Computing Information and Control, 2008, 4(3): 639-649.

• NC programming
• NC manufacture
• STEP-NC
• manufacturing feature

ISO 14649 (STEP-NC) presents a high-level and STEP-compliant language for writing a part program that enables a comprehensive description of the machined part together with technological information to be passed in a well-organized structure down to the CNC machine. In order to automate and streamline the generation process of such rich-information programs, this paper proposes to use the STEP-NC manufacturing features right at the modelling stage, and presents an integrated framework for part modelling, process planning and part program generation through direct use of the manufacturing features and the adoption of the STEP-NC data model. To examine the feasibility a STEP-NC programming system (SPS) is designed with respect to the prismatic parts with 2.5D manufacturing features. Major issues relating to feature validation and process planning are addressed in particular, and a prototype is implemented to demonstrate the feasibility and potential advantages of the approach.

• 出版日期2008-3
• 单位山东大学