Dimensional Tolerances in Mechanical Assemblies: A Cost-Based Optimization Approach

被引:2
|
作者
Umaras, Eduardo [1 ]
Barari, Ahmad [2 ]
Horikawa, Oswaldo [1 ]
Tsuzuki, Marcos Sales Guerra [1 ]
机构
[1] Univ Sao Paulo, Lab Computat Geometry, Escola Politecn, BR-05508010 Sao Paulo, Brazil
[2] Univ Ontario Inst Technol Ontario Tech, Fac Engn & Appl Sci, Oshawa, ON L1G 0C5, Canada
来源
APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 16期
关键词
dimensional tolerances; tolerance-cost optimization; interrelated dimensional chains; MANUFACTURING COST; QUALITY LOSS; ALLOCATION; DESIGN; MODEL;
D O I
10.3390/app13169202
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
There is a widely accepted consensus that component manufacturing precision is directly correlated with improved functional performance. However, this increase in precision comes at the expense of higher manufacturing costs, resulting in a trade-off between quality and affordability. In light of this opposing behavior, low-cost products typically exhibit lower quality, whereas high-quality products tend to be more expensive. This study introduces a novel approach for optimizing the dimensional tolerances of mechanical assembly components, taking into account both their manufacturing requirements and the associated costs of non-quality. Furthermore, the method considers the functional constraints imposed by interrelated tolerance chains within the product. Instead of relying on an exact mathematical solution, the proposed solution employs a heuristic approach through a simple and flexible algorithm. This enables practical implementation, as different cost-tolerance functions can be selected based on specific requirements. To provide a comprehensive evaluation of the proposed method, a concise review of the relevant literature in the field was conducted, allowing a comparison with other state-of-the-art approaches.
引用
收藏
页数:19
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