Systematic Solving of Machining Deformation and Process Optimization for Complex Thin-walled Parts

Complex thin-walled parts are widely used in various fields. But they are prone to deform in machining process because of their unique structures. At present, there is a lack of suitable methods to systematically solve this problem and form a universal and optimized machining process. This paper proposed a systematic method to solve the problem of machining deformation for complex thin-walled parts, and provided an optimized machining process using this method. First of all, this paper found out the machining conflicts through analyzing root causes of deformation, and got the principles of invention which mean the possible directions of problem solving. Then, this paper established the substance-field models based on machining conflicts, and got the corresponding standard solutions which mean the possible way of problem solving. After that, the combination of one standard solution and one principle of invention which are most is selected through computing the semantic similarity between them. This combination of standard solution and principle of invention can be regarded as the conceptual solution which points out the solving direction and solving way. Finally, an optimized and versatile solution of machining process is proposed through using the conceptual solution. The optimized machining process is verified with a machining instance of complex thin-walled part.