TOLERANCE DESIGN FOR PRODUCTS WITH ASYMMETRIC QUALITY LOSSES

This paper presents a design method for allocating dimensional toleran ces of products with asymmetric quality losses. The design strategies proposed include the adjustment of manufacturing target and the approa ch of robust tolerance design. The average quality losses of batch pro ducts are computed differently in accordance with the distribution of functional characteristics. The robust tolerance design is based on th e balance between manufacture cost and quality loss expected. An illus trative example shows the proposed procedure for the tolerance design of a helical spring.