Numerical Tool Path Optimization for Conventional Sheet Metal Spinning Processes

10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes

Rentsch, Benedikt^1 ; Manopulo, Niko^1 ; Hora, Pavel^1

ETH Zurich, Institute of Virtual Manufacturing, CLA F9, Tannenstrasse 3, Zurich

8092, Switzerland^1

关键词: Complex geometries;    Incremental sheet forming;    Numerical optimizations;    Numerical tools;    Objective functions;    Spinning process;    Standardized procedure;    Systematic methodology;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/734/3/032009/pdf
DOI  :  10.1088/1742-6596/734/3/032009

来源: IOP

【 摘 要 】

To this day, conventional sheet metal spinning processes are designed with a very low degree of automation. They are usually executed by experienced personnel, who actively adjust the tool paths during production. The practically unlimited freedom in designing the tool paths enables the efficient manufacturing of complex geometries on one hand, but is challenging to translate into a standardized procedure on the other. The present study aims to propose a systematic methodology, based on a 3D FEM model combined with a numerical optimization strategy, in order to design tool paths. The accurate numerical modelling of the spinning process is firstly discussed, followed by an analysis of appropriate objective functions and constraints required to obtain a failure free tool path design.