Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
PROPOSAL OF AN ADVANCED DATA MODEL FOR STEP-NC COMPLIANT ADDITIVE MANUFACTURING
Submission Author:
Efrain Rodriguez , DF
Co-Authors:
Efrain Rodriguez, Renan Bonnard, Alberto Alvares
Presenter: Efrain Rodriguez
doi://10.26678/ABCM.COBEM2017.COB17-2435
Abstract
Additive Manufacturing (AM) is upheld as one mega-trend from new industrial landscape - Industry 4.0. Massive benefits are promised by AM for development of the new products including reduced time-to-launch, manufacturing design freedom and supply chain improvements. Nevertheless, serious problems persist on AM digital chain with the use of format old styles for data exchange. The STL (1987) format has been used as the "de facto" standard for data exchange between 3D-design softwares and AM systems. Similarly, numerical controllers of AM systems still use the G-code (ISO 6983/1980) standard. But they have drawbacks that make them incompatible with the idea of a high-level digital chain for AM. ISO 14649, known as STEP-NC, is now trusted as a solution for AM data exchange. This paper explores the STEP-NC standard to support the AM high-level digital chain and highlights the advantages of such a digital chain. An application activity model using the nomenclature IDEF0 and an application reference model in EXPRESS are presented. The concept of AM-layer-feature is introduced for referencing AM features within of the EXPRESS model. Finally, the architecture of a indirect STEP-NC AM platform for implementation of the new model also is presented.
Keywords
Additive manufacturing, STEP-NC, ISO 14649, direct digital manufacturing, industry 4.0
