A Fixture Failure Control Chart For Variation Caused By Assembly Fixtures
Paper in proceedings, 2012

In the auto body assembly process, fixtures are used to position parts during assembly and inspection. If there is variation in the positioning process, this will propagate to the final assembly. There are also other sources of variation in the final assembly, such as variation in parts due to previous manufacturing steps. To facilitate the separation of the different sources of variation, and thereby also improve fault diagnosis, a fixture failure subspace control chart is proposed. This control chart is based on a multivariate T2-chart, but only variations in the fixture failure subspace are considered. The method is applied to two industrial case studies with satisfying results.

T2-chart

Quality Control

Fixtures

Assembly

Multivariate

Author

Kristina Wärmefjord

Chalmers, Product and Production Development, Product Development

Johan Carlson

Chalmers, Product and Production Development, Product Development

roceedings of the ASME 2012 International Mechanical Engineering Congress & Exposition, IMECE2012, Houston, Texas, USA

PARTS A, B, AND C 1807-1814

Subject Categories

Production Engineering, Human Work Science and Ergonomics

Reliability and Maintenance

Driving Forces

Sustainable development

Areas of Advance

Production

DOI

10.1115/IMECE2012-86257

ISBN

9780791845196

More information

Created

10/8/2017