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Proceedings of CAD'17, 2017, 138-142
Evaluation of the OptiX Ray Tracing Engine for Machining Simulation

Marc Jachym, Sylvain Lavernhe, Christophe Tournier, Charly Euzenat, Pierre-Alain Boucard, Paris-Saclay University

Abstract. In molds and dies industry, simulation of machining process is mandatory to validate the tool path generated with the CAM software before launching the production of parts with very high added value. Indeed, machining operations including roughing, reworks and finishing are particularly long, especially for large size parts as for example in the automotive industry. Thus, the appearance of defects in the final stages of the process has a dramatic impact on manufacturing companies. CAM software editors therefore provides cutting simulation applications that allow to validate the paths from a macroscopic point of view, i.e. to test the presence of collisions. However, these simulations don’t incorporate any features of the actual process likely to deteriorate the surface finish during machining operations. Finally, these simulations do not provide the accuracy required within a reasonable time or to select an area in which the user would like to have greater precision. On the other hand, high-performance simulation prototype software covering the preceding shortcomings are developed in laboratories, but requires significant computer resources.

Keywords. Machining simulation, GPU computing, CUDA architecture, OPTIX, ray tracing

DOI: 10.14733/cadconfP.2017.138-142