Assembly failures and action cost in relation to complexity level and assembly ergonomics in manual assembly (part 2)
Journal article, 2014

Earlier studies have demonstrated strong relationships between manual assembly at high physical load levels and increased amounts of quality defects compared to assembly at low physical load levels. A recent Swedish interview study of engineers in design and manufacturing engineering indicated that assembly complexity factors are of additional importance for the assembly quality. The objective of this study was therefore to examine the significance of high and low complexity criteria and the relationships between assembly ergonomics and assembly complexity and quality failures by analyzing manual assembly tasks in car manufacturing. In total, 47 000 cars were analyzed and the results showed several significant correlations between assembly ergonomics and assembly complexity, assembly time, failures and action costs. The action costs for high complexity tasks were 22.4 times increased per task per car compared to low complexity tasks. Relevance to industry: Assembly ergonomics and assembly complexity factors interact. Both should be proactively considered in order to keep assembly-related failures and action costs as low as possible.

failure

assembly complexity

assembly ergonomics

action cost

quality

manual assembly

Author

Ann-Christine Falck

Chalmers, Product and Production Development

Roland Örtengren

Chalmers, Product and Production Development, Production Systems

Mikael Rosenqvist

Chalmers, Product and Production Development, Product Development

International Journal of Industrial Ergonomics

0169-8141 (ISSN)

Vol. 44 2014 455-459

Subject Categories

Production Engineering, Human Work Science and Ergonomics

Driving Forces

Sustainable development

Areas of Advance

Production

DOI

10.1016/j.ergon.2014.02.001

More information

Created

10/7/2017