高温合金GH4169铣削力试验

Experimental Study on Milling Force of Superalloy GH4169

高温合金是材料加工中典型的难加工材料,在加工过程中,铣削力大,刀具破损严重,给加工生产造成很大影响。本次试验主要针对高温合金GH4169的铣削力进行研究,对正交试验所得数据进行线性回归分析,得到了适用于本次试验设备条件的铣削力经验公式;对试验结果进行极差分析,结果表明:各向铣削力随切深和进给量的增加而增大,随切削速度的增加而减小,并且在铣削参数组合为v=400m/min,ap=0.9mm,fz=0.05mm/z时,各向铣削力取得最小值。

Among all materials, superalloy is typically a kind of materials which are difficult to manufacture. During processing of superalloys, milling force is usually great and tool breakage is often serious, which have thus a great negative impact to the production. Taking superalloy GH4169 as the main example, the experimental study in this paper has been performed with milling force as the main concern. An empirical formula for the milling force of this material is obtained by a linear regression analysis on the data from orthogonal test, and proved suitable for the conditions of the equipment. Through the range analysis on the test results, conclusion has been drawn as follows. All the milling force increase with the increase of the cutting depth and the feed rate, and decrease with the increase of cutting speed. Each milling force obtains the minimum when the combination of cutting parameters are v=400m/min, ap =0. 9mm, fz=0.05mm/z.