A STEP-NC programming system for prismatic parts

Riliang Liu*, Chengrui Zhang, A. Nassehi, S. T. Newman

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

8 Citations (Scopus)


To comply with STEP-NC (ISO 14649), a new paradigm for NC programming, many computer systems involved in NC manufacture are required to reshape in both functionality and structure. This paper reports a feature-based NC programming system for prismatic parts to be machined using STEP-NC machine tools. The proposed system consists of three functional modules, i.e. a feature-based modeler, a process planner and a part program generator. The modeler provides a graphical environment for the part model, which is created by adding manufacturing features on a 2.5 D sweep primitive shape. The process planner determines which operations are to be performed for the features, generates workingsteps and then produces a reasonable workplan. Finally both the geometrical and the process information are passed to the part program generator to form a complete ISO 14649-compliant file. The proposed system is demonstrated through the generation of the STEP-NC part program for an example part, and major issues such as the feature-operation mapping and the workingstep sequencing etc are also addressed in this paper.

Original languageEnglish
Title of host publicationMaterials Science Forum
Number of pages4
Publication statusPublished - 2006
Event12th International Manufacturing Conference in China, IMCC2006 - Xi'an, China
Duration: 21 Sept 200623 Sept 2006

Publication series

NameMaterials Science Forum
ISSN (Print)02555476


Conference12th International Manufacturing Conference in China, IMCC2006


  • CNC
  • NC programming


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