Journal article
Specification Limits, Capability Indices, and Process Centering in Assembly Manufacture
Abstract
The problems with using Cpk indices for components to control the capability of an assembly process are well known. Suppliers of components may, for example, actually decrease the yield of conforming product at assembly by raising their own Cpk's. We present formula relationships which link component capability indices (Cp, Cpm, Cpk) and specifications at the supplier level with capability indices and specifications at the assembly level. The …
Authors
Parlar M; Wesolowsky GO
Journal
Journal of Quality Technology, Vol. 31, No. 3, pp. 317–325
Publisher
Taylor & Francis
Publication Date
July 1999
DOI
10.1080/00224065.1999.11979930
ISSN
0022-4065