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通过实验和数学统计的方法研究了激光表面处理后的40 Cr 钢的疲劳寿命,得到了扫描搭接比、辐照时间、和功率密度在激光加热过程中取不同值时对工件疲劳寿命影响的函数表达式:T=1.982-0.471 x_1+1.641 x_1x_2+1.389x_1x_3+2.409 x_2x_3+1.93 x_1~2
The fatigue life of 40 Cr steel after laser surface treatment was studied by means of experiments and mathematical statistics. The fatigue life of the 40 Cr steel was obtained when scanning lap ratio, irradiation time and power density were different during laser heating Function expression: T = 1.982-0.471 x_1 + 1.641 x_1x_2 + 1.389x_1x_3 + 2.409 x_2x_3 + 1.93 x_1 ~ 2