16Co14Ni10Cr2Mo超高强度钢铣削加工切削力仿真与实验研究

Simulation and Experimental of Cutting Forces in Milling of 16Co14Ni10Cr2Mo Ultra-high Strength Steel

为了获得超高强度钢铣削过程中切削力的变化规律,分别基于有限元仿真软件ABAQUS和DEFORM,建立了16Co14Ni10Cr2Mo超高强度钢铣削加工有限元仿真模型并进行了模拟仿真和铣削验证实验,研究了刀具几何参数和铣削参数对切削力的影响规律。结果表明:切削力随前角增大而降低,随后角增大变化不大,其中前角影响较为显著;切削力随铣削速度增大而减小,随每齿进给量、铣削深度和铣削宽度的增大而增大,其中铣削深度和铣削宽度影响较为显著。刀具几何参数的最佳取值范围为:前角6°~8°,后角12°~14°。

In order to obtain the change rule of cutting force in the milling process of ultrahigh strength steel, the milling finite element model of 16Co14Ni10Cr2Mo ultra-high strength steel was established based on ABAQUS and DEFORM respectively. The simulation and the milling verification tests were carried on. The effect of tool geometrical parameters and cutting parameters on cutting forces was studied. The results showed that the cutting forces decrease with the rake angle increase, the relief angle has little effect on the cutting forces. The influence of the rake angle is significant. The cutting forces decrease with the cutting speed increase and increase with the increase of feed per tooth, milling depth and milling width. It is concluded that the milling depth and the milling width are the main influence factors. The best scope of cutting tool structural parameters is： rake angle 6°~8°, relief angle 12°~14°.