摘要
直线刃阴极数控电解加工,是利用直线刃阴极作为通液电极,通过计算机控制阴极相对于工件的运动来加工曲面。它既具有电解加工的优点,又具有数控加工的柔性,能够解决难切削材料零件直纹曲面的加工难题。
本文介绍了直纹曲面数控电解加工装置,包括机械本体、电源、电解液系统、控制系统,并在此试验装置上进行了直纹曲面数控电解加工工艺试验。
研究数控展成电解加工的成形规律,是研究数控展成电解的基础。本文对内喷式直线刃阴极展成电解加工的成形规律进行了研究,并通过试验进行了验证。
完成了直线刃阴极多因素正交试验,通过试验分析得出了各因素对表面粗糙度和切削深度的影响,并找出了表面粗糙度和切削深度的最优参数组合,为复杂曲面的加工奠定了基础。
在正交试验的基础上,通过选择合适的加工参数,实现了圆弧面的加工。
Straight-edge cathode numerical controlled electrochemical machining is a new manufacturing technology which uses a simple straight-edge cathode as a pass fluid electrode and then does multi-dimensional motion driven by CNC system. It has both the advantages of electrochemical machining and the flexible of CNC machining, and it can work out the problems in machining ruled surface which are difficult to cut.
In this paper, the electrochemical machining set-up was introduced, including mechanical body, power supply, electrolyte system and control system and the straight-edge cathode electrochemical machining experiments were done in this experimental set-up.
Study of the forming laws is the basis of study the NC electrochemical contour evolution machining. In this paper, straight-edge cathode electrochemical contour evolution machining forming laws were studied and the experiments were carried out.
Straight-edge cathode multi-factor orthogonal experiments were finished in the electrolysis machine experimental set-up. The analysis of the test described the affect of surface roughness and cutting depth by various factors and identified the optimal parameter combination of surface roughness, which laid the foundation for complex surface machining.
Ruled surface processing were implemented successfully by selecting appropriate processing parameters based on the orthogonal experiments.
引文
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