Minimizing Dimensional Variation and Robot Traveling Time in Welding Stations
Paper i proceeding, 2014

Complex assembled products as an automotive car body consist of about 300 sheet metal parts joined by up to 4000 spot welds. In the body factory, there are several hundred robots organized into lines of welding stations. The distribution of welds between robots and the welding sequences have a significant influence on both dimensional quality and throughput. Therefore, this paper proposes a novel method for quality and throughput optimization based on a systematic search algorithm which exploits properties of the welding process. It uses approximated lower bounds to speed up the search and to estimate the quality of the solution. The method is successfully tested on reference assemblies, including detailed fixtures, welding robots and guns.

robots

branch and bound

dimensional quality

joning

cycle time

optimization

Assembly

spot welding

Författare

Johan Carlson

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

Domenico Spensieri

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

Kristina Wärmefjord

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

Rikard Söderberg

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

5th CIRP Conference on Assembly Technologies and Systems, November 13-14, 2014, Dresden, Germany

2212-8271 (ISSN)

Vol. 23 C 77-82

Ämneskategorier

Produktionsteknik, arbetsvetenskap och ergonomi

Data- och informationsvetenskap

Diskret matematik

Styrkeområden

Produktion

DOI

10.1016/j.procir.2014.03.199

Mer information

Skapat

2017-10-07