This article Keywords: metal profiles, cold roll forming, forming, roll forming technology, design, automotive industry, pass system, the cross section profiles, forming method, the Roll forming machine minimum bend radius, forming, finite element software, the critical bending angle , classification and identification, elimination methods, plastic deformation, the production process, to establish principles to determine the method of force and energy parameters,

Introduce small automobile industry profile section forming method - cold roll forming method. Cold roll forming of the profiles the history of development, domestic and international status of cold roll forming, cold roll forming prospects, cold rolling and profile features of the product profiles in the automotive industry are briefly introduced, and after cold roll roll forming method and the other forming methods are briefly compared. On the profiles of cold roll forming process of a detailed study cold forming machine of cold roll forming process of the length of deformation zone, the critical bending angle, method of determining the minimum bend radius, and analyzes the strip in cold rolling process of plastic deformation , and then summarized in cold roll forming force and energy parameters of the formula. Then analyzed the cold forming roll forming technology, introduced the forming process of cold roll forming process of the classification and identification of the principle of the right profile for the design of cold roll forming cold roll forming machine step and the determination of the principles of various forming parameters, and hole type and roll type design method are detailed. According to customer request, on a real cross section profiles, forming a continuous manner by using fixed-point adjustable method of analysis, design a set of pass system. Finite element software on cold roll forming process simulation, the design of the pass system was modified. On the design and production of a cold roll forming machine for debugging analysis to identify the profile of the production process and eliminate the causes defect approach.