How can manufacturing precision be improved? This paper presents an analysis of the impact of localization source errors on geometric errors of machined features within fixture design. Localization accuracy is critical in specifying a locating scheme and tolerance allocation. The analysis highlights error sensitivity and characteristics at key points on manufacturing features. Focusing on datum-related geometric errors, the research stresses the importance of considering overall error across multiple critical points during fixture layout design. It suggests an optimized approach to locator configuration, aiming to reduce geometric variations at critical points of machined features. This research has implications for improving manufacturing precision. The study provides practical guidance for engineers to minimize variations in machined parts. The optimal configuration design aims to reduce geometric variations at the critical points of machined features, resulting in higher precision and improved product quality. By considering overall error and error sensitivity, the research advances the field of manufacturing and automation.
Published in Assembly Automation, this paper directly contributes to the journal's focus on improving efficiency and precision in automated manufacturing processes. The study aligns with the journal's scope, by addressing tolerance analysis and fixture design, crucial aspects of assembly automation and product quality.