" shape inspection can greatly reduce the number of key dimensions and related inspection costs" - Martin s 。
Form inspection is closely related to key dimension inspection
Process of size inspection:
First, shape inspection is required, then key dimension analysis is carried out, and then function test is carried out. after completion of the test, it is necessary to check whether the overall shape and dimension are qualified. after passing the test, it is necessary to check whether the key dimension meets the tolerance requirements, and whether the function meets the requirements after meeting the requirements.