Civil Engineering Reference
In-Depth Information
2
Determination of
Achievable Process
Tolerances with Respect
to Manufacturing
Process Capability
2.1
2.2
Chiu-Chi Wei
2.3
Chung-Hua University
Matrix Approach
2.4
Chih-Hung Tsai
2.5
Ta-Hwa Institute of Technology
Genetic Algorithm [27] • Simulated Annealing [31] • Taguchi
Method [9]
Chie-Bein Chen
2.6
Conclusion
Ming-Chuan University
Tolerance design plays a vital role in the manufacturing process planning. The tolerance should not be
loosely allocated to degrade the product performance or strictly assigned to escalate the production cost.
Traditional design of tolerance relies on personal experience and expertise; thus, the tolerance designed
may be feasible but not economical. With the advent of the computer technology, many complicated
algorithms for allocating the process tolerance have been developed, and searching for the optimal design
of tolerance has become possible. This article intends to reveal the recent computational techniques of
tolerance design to minimize the manufacturing cost and production loss.
2.1
Introduction
Tolerance design can be divided into three categories: (1) tolerance design of the final product spec-
ification to achieve required functionality; (2) tolerance design of the component specification to
assure successful assembled product [1, 2, 3, 4, 5]; and (3) tolerance design of the manufacturing
process to meet component specification [6, 7, 8, 9, 10]. Generally, the tolerance of the first two
categories is called the product tolerance, while the third category is often named as process tolerance.
