300M超高强度钢高速切削过程仿真研究
发布时间：2019-05-06 11:57
【摘要】：针对300M超高强度钢切削加工性较差的问题,通过有限元仿真技术对300M钢的高速切削过程进行研究。在相关试验数据的基础上,创建高速切削仿真模型,研究切削过程中切屑形态、切削区的应力分布,以及切削速度、刀具几何角度的变化对切削力、切削温度的影响规律。仿真结果分析表明:仿真数据与试验数据的变化趋势基本相同,切削速度增大,切削温度随之升高,切削力先升高后下降;前角角度增大,切削力和切削温度都较大程度下降,应力向刀尖与工件接触区集中;后角增大,切削力和切削温度略有下降,但变化幅度较小。
[Abstract]:In view of the poor machinability of 300m ultra-high strength steel, the high-speed cutting process of 300m steel is studied by finite element simulation technology. Based on the relevant experimental data, a high-speed cutting simulation model is established to study the influence of chip shape, stress distribution in cutting zone, cutting speed and tool geometry angle on cutting force and cutting temperature. The simulation results show that the trend of the simulation data is the same as that of the test data. The cutting speed increases, the cutting temperature increases, and the cutting force increases first and then decreases. With the increase of the angle of the front angle, the cutting force and the cutting temperature decrease greatly, and the stress is concentrated in the contact region between the tool tip and the workpiece, while the back angle increases, the cutting force and the cutting temperature decrease slightly, but the range of change is small.
【作者单位】： 哈尔滨理工大学机械动力工程学院;
【基金】：国家自然科学基金项目(51575145)资助
【分类号】：TG506.1
[Abstract]:In view of the poor machinability of 300m ultra-high strength steel, the high-speed cutting process of 300m steel is studied by finite element simulation technology. Based on the relevant experimental data, a high-speed cutting simulation model is established to study the influence of chip shape, stress distribution in cutting zone, cutting speed and tool geometry angle on cutting force and cutting temperature. The simulation results show that the trend of the simulation data is the same as that of the test data. The cutting speed increases, the cutting temperature increases, and the cutting force increases first and then decreases. With the increase of the angle of the front angle, the cutting force and the cutting temperature decrease greatly, and the stress is concentrated in the contact region between the tool tip and the workpiece, while the back angle increases, the cutting force and the cutting temperature decrease slightly, but the range of change is small.
【作者单位】： 哈尔滨理工大学机械动力工程学院;
【基金】：国家自然科学基金项目(51575145)资助
【分类号】：TG506.1
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