Design and Application of Casting Profile Dimension Inspection Tooling Based on Process Capability
Author of the article:LIU Siyi
Author's Workplace：Beijing Aviation Materials Research Institute Co.,Ltd.,Beijing 100094,China
Key Words：CPK tooling design tooling inspection tolerance casting measurement
Abstract：It was difficult to carry out full size inspection for all products in large-scale industrial casting production.Generally, size control was carried out by sampling inspection or designing auxiliary measuring tools. The design principle,tolerance distribution and CPK calculation methods of casting dimension inspection tools were analyzed through examples to control the stability of batch product dimension and improve the inspection efficiency. The results show that the tool testing area is determined by CPK index analysis, and the usability of the tool is optimized according to the machining size,which verifies the practicability of the tool. The method has strong operability and is suitable for small and medium-sized structure castings, which improves the size detection efficiency.
