A Study On The High Speed Cutting Based On DEFORM And Optimization Of Cutting Paramters

Cutting is a manufacturing way to wipe out the unnecessary material of the workpiece by cutting tool. The complexity of cutting procedure, the deformation of material, the cutting force, cutting temperature all are the problems we have to take into considerations during the cutting process. Especially the cutting force, it has a great influence on the cutting quality, efficiency and cost. So it is significant to study the process of cutting and the parameters of cutting. However, in the production, engineers often decide the cutting parameters by their experience. How to decide the parameters? Which always is the problem we engaged to solve. The traditional cutting test cost much time and money. With the development of computer science and FEM, which made it possible to simulate the cutting process and gained related parameters on computer.In this paper, according to the metal cutting theory and finite element method, the author has established model of cutting procedure based on the software DEFORM, which includes the material model, the geometric model, the mesh of grids and the other settings. After the simulation, cutting force, temperature and other results was gained.Secondly, the author regards cutting parameters as the optimization variables, and the cutting force, removal rate of materials as the goal functions. After the modeling in MATLAB, the results are calculated for engineers for reference.At last, experiments was carried out on the MAZAK turning machine, which demonstrated the results simulated from DEFORM and the optimization from MATLAB are in accordance with the results of experiments. It provides a new way to study the cutting.