Project supported by the National Natural Science Foundation of China (Nos. 50505046 and 50275136) and the Defense TechnologyFoundation of National Key Laboratory (No. 51489020104JW0401),China
Tolerance is almost ubiquitous during the whole product lift cycle and is imperative for seamless integration of CAD and CAM. Based on the mathematical definition of tolerance, a 3D tolerancing system, 3DTS, is presen...