Optimization for process plans in sheet metal forming

被引:0
|
作者
Silke Wagner
Madan Sathe
Olaf Schenk
机构
[1] AutoForm Development GmbH,Department of Computer Science
[2] University of Basel,Institute of Computational Science
[3] University of Lugano,undefined
来源
The International Journal of Advanced Manufacturing Technology | 2014年 / 71卷
关键词
Process plan; Sheet metal parts; Tooling costs; Ant colony optimization;
D O I
暂无
中图分类号
学科分类号
摘要
Determining a process plan in the early phase of the sheet metal forming process is a mandatory task for a process planner. The objective of a process planner is to find a feasible and cost optimal process plan which, in particular, optimizes the assignment of processing elements to processing steps of the production process. We propose to find such an assignment in an automatic way for all the hole features by splitting the entire task into three subsequent steps. At each step, the combinatorial optimization problem is modeled as a bin packing problem with conflicts, and heuristically solved by a specifically designed ant colony optimizer. It is ensured that, at each step, the process plan is feasible while minimizing the tooling costs. In our computational results, we compare our approach to the existing greedy heuristic when computing a process plan for five different practice-relevant sheet metal parts, and show that we can save up to 50 % of the entire tooling costs.
引用
收藏
页码:973 / 982
页数:9
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