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Honing process as the gear surface finishing, on the gear tooth surface to be machined quality and service life has a direct impact. But honing process there is often a low profile accuracy, the cutting efficiency is low, the error correction capability shortcomings and weak, so the honing process research is necessary. Honing rely mainly on the surface of the honing wheel CBN (cubic boron nitride) abrasive gear to be processed by extrusion and cutting. Therefore CBN abrasive cutting process, to be processed directly influences the quality and performance honing wheel. And with modern cutting to high-quality, efficient, sophisticated, intelligent direction of the cutting tool and the workpiece material and performance have higher requirements, the cutting process research is more important. Based on the preliminary studies, the paper honing honing wheel surface during single cutting characteristics of CBN grains were analyzed, as follows: 1) the use of finite element analysis software ANSYS / LS-DYNA nonlinear dynamics theory, simulation single CBN grains of 45 steel cutting process. Unit with 8-node linear three-dimensional solid Solidl64 unit, and apply a single point of integration Lagrange algorithm for establishing machining explicit dynamic analysis of three-dimensional finite element model. Model uses the Johnson-Cook plasticity model. For single CBN grains and the workpiece reasonable mesh, can reduce CPU time, but also avoid unreasonable because meshing mesh distortion arising problems. Is also required for single CBN grains and the workpiece reasonable constraints and additional loads, constraints, unreasonable, will make a major workpiece material deformation, affecting the cutting process and even make cutting impossible. CBN grains single cutting path dependent on the applied load, so the load applied to the cutting process is more important. In this paper, a reasonable set of cutting model and calculation parameters to achieve a single CBN grains of 45 steel at different speeds of three-dimensional large deformation of the cutting process. Numerical results clearly simulate the material to be cut in the plastic deformation stage, shear sliding phase, chip formation stage and the different cutting speed chip morphology, and the different speeds of effective stress, effective plastic deformation and temperature field theory are analyzed study, concluded cutting speed and chip morphology and cutting temperature. Reasonable control of the cutting speed, not only can control the chip morphology, but can also take reasonable breaker timely measures to prevent flying chips or swarf cutting process is too long impact, so the cutting process optimization provides a certain basis. 2) the use of ANSYS / LS-DYNA, using Solidl64 units were established rake angle of -10 °, -15 °, -20 °, -25 °, -30 °, -35. Three-dimensional coupled thermal cutting large deformation analysis model. Layer of material to be cut using a cutting capacity of thermal analysis with elastic - viscoplastic model and adopt reasonable criteria for the contact and separation simulate different rake angle of chip morphology and temperature distribution. Simulation results simulated in the same and different cutting rake angle and chip morphology under stress conditions, and different rake angle of the temperature field theory done some analysis, concluded rake angle, chip morphology and the highest cutting temperature. Reasonable rake angle can not only reduce cutting forces and temperature, but also can reduce the chip deformation and thickness, and therefore optimize the cutting process and cutting parameters is very important.
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