Three-dimensional shaping by dot-matrix electrical discharge machining
Three-dimensional shaping by dot-matrix electrical discharge machining
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点阵放电加工三维成型
DOI：
10.1016/s0141-6359(97)00045-7
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
N. Mohri
中科院分区：
文献类型：
--
作者：
K. Furutani;T. Enami;N. Mohri
本文介绍了一种新的成形方法--扫描运动点阵式电火花加工法。点阵法的加工过程类似于点式打印机的打印运动。该方法不仅可用于电火花加工，而且可用于电解加工和成形。用于点阵法的加工单元的原型具有六个用于细线电极的进给装置。电极直径为300 μm，间距为760 μm。为了获得光滑的表面，x-y平面中的行星运动被添加到加工单元在z方向上的进给中，重复加工相同的区域，或者以精细进给移动加工单元。通过补偿扫描电火花加工过程中电极的磨损，可以在不成形工具电极的情况下获得微米级精度的各种形状。
This paper deals with a new prototyping method called dot-matrix electrical discharge machining (EDM) with scanning motion. The machining process by the dot-matrix method is similar to printing motion with a dot-impact printer. This method can be applied not only to EDM but also electrochemical machining and forming. A prototype of the machining unit for the dot-matrix method has six feeding devices for thin wire electrodes. The electrodes of 300 μm in diameter are arranged with the pitches of 760 μm. To obtain a smooth surface, a planetary motion in the x-y-plane is added to the feeding of the machining unit in the z-direction, the same area is machined repeatedly, or the machining unit is moved with fine feed. By compensating for the wear of the electrode during the scanning EDM, various shapes with the accuracy of micrometers order can be obtained without a formed tool electrode.