Abstract
Geometric tolerances are assigned to avoid parts rejection in a manufacturing process while ensuring fulfillment of intended function. Selection of tolerance value is an important task which affects the overall product cost and performance both. The significance of tolerance value is more evident in case of mating parts where the dimension of more than one parts share responsibility of successful assembly and design. The objective of this research is to determine appropriate tolerance value based on assembly clearance analysis which takes into account relationship between assembly clearance and product performance parameters. The study is conducted through CAD-CAE integrated finite element analysis (FEA) simulations of the product process model. The results output help in distinguishing different tolerance levels which can be further probed for optimal, using available manufacturing resource capability data. The research output is a more practical tolerance value achieved based on product performance analysis as well as available resources and appropriate cost. The results obtained validate the utility of the approach presented in this paper.
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