Exploring the ISO14649 (STEP-NC) for Intelligent Manufacturing System

STEP-NC (ISO 14649) was developed and published by International Standard of Organization on June 2006. It was a replacement for G-Code (ISO 6893) and an enhancement to STEP (ISO 10303). At this moment several CAPP and CAM systems related to STEP-NC compliance try to implement and no commercialized system has been established around the world. This critical review identifies the development of STEP-NC research includes problem of STEP-NC that makes it hard to implement. The fundamental and benefit of STEP-NC is also been reviewed. This research work was motivated by industrial requirements of concurrent engineering, standard product data models and an integrated manufacturing environment, which are further reflected in process planning. This paper describes and illustrates a STEP compliant CAD/CAPP/CAM System for the manufacture of asymmetric parts on CNC milling machine. The information models to support the proposed system together with the data models defined in the ISO14649 standard used to create the NC programs are also described. A structured view of a STEP compliant CAD/CAPP/CAM system framework supporting the next generation of intelligent CNC controllers for turn/mill component manufacture is provided. Finally the authors proposed STEP-NC Code Generator or (Mill-Gen) system and outlined by the modeling of a milling workstation and through the use of user interface dialogs that depict the information held in the models. A case study component has been developed to prove the concept for using the asymmetric parts of ISO14649 to provide a machining CAD/CAPP/CAM environment. It is expected that the recommended future extensions will enhance the usefulness of this paper, and will meet the requirements for global interoperable manufacturing for real-life parts. Exploring the ISO14649 (STEP-NC) for Intelligent Manufacturing System 446