Cold-formed steel which's features are small production's batch , the short cycle and high precision in the production progress was used very extensive. Most factories ,using the AutoCAD software ,designed by graph. Calculating and doing a graph took a lot of time and energy,which cannot meet the shorter requirements.?In the process of new product development because of many varieties,modeling in the simulation and parameter selection is difficult.Therefore it is an urgent need for a program which can make roll bending design automatic form,and simulation model easily be easily established.Otherwise,the parameters is selected and validated in this passage.Here was clarified some of the basic cold-formed steel production process ,especially, requirements on the use of CAD in the design of the pass. This paper involves the results of some research done by predecessors and the help to roll pass design and modeling by SolidWorks CAD software.At the end of this passage, hole was designed based on The second development of Solidworks according to No. Q345 for a steel rectangular tube steel roll forming part of the process from a factory. model of the roll will be established and imported into finite element software ANSYS。Then,Ls-DYNA are used to simulate the process of roll bending。Finally,simulation results are compared with the results of tests done in the field.?The parameters selection of simulation wre verified。... |