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通过试验表明,干切削奥氏体不锈钢1Cr18Ni9Ti,切削速度在0.33 m/s左右,摩擦系数μ最大,积屑瘤最高,切屑变形系数_l和切削力F_z最小,且与切削速度量驼峰性规律变化;随走刀量增加_l和μ有规律地减小,F_z增加;随前角γ_o增大μ增大而_l及F(?)却有规律地减小;给出用“量纲分析-二次通用旋转组合设计”综合试验法求得的计算切削力的经验公式: F_z=8.65×10~(12)α_p~(0.202+0.215nv)f~(-0.92+0.071nα)_pV~(-1.74),N。
Experiments show that the dry cutting austenitic stainless steel 1Cr18Ni9Ti, the cutting speed of about 0.33 m / s, the largest friction coefficient μ, the highest BUE, chip deformation coefficient _l and cutting force F_z minimum, and the amount of cutting the amount of hump patterns With increasing the amount of walking increases _l and μ regularly decreases, F_z increases; with the angle γ_o increase μ increases and _l and F (?) Have regularly decreased; given with "dimension An empirical formula for calculating the cutting force obtained by the comprehensive test method: F_z = 8.65 × 10-12 α_p ~ (0.202 + 0.215nv) f ~ (-0.92 + 0.071nα) _pV ~ (-1.74), N.