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生产中,我们急需加工一件手动冲模的凹模,由于受生产周期和环境的限制,不能按正常的生产工艺进行。在没有电火花穿孔设备的情况下,我们利用 SCX—73型线切割床在一块己淬硬的 CrWMn 材料上加工出穿丝孔,顺利加工出凹模,解决了生产上的急需,我们的具体作法是这样的:首先根据穿丝孔的大小用紫铜加工了一个空心电极如图所示。将磁力千分表架固定在丝架上,空心电极与高频电源的负极同时装夹在表架上。调整表架,使电极尽可能垂直于工件,X、Y 方向均可。将冷却液的上出水管取下套在空心电极的尾端,下出水管关闭,冷却液采用北京产 DX—1~#,浓度10%左右。加工时,将高频电源调至五档,缓慢细
In production, we urgently need to process a manual die die, due to the production cycle and environmental constraints, can not be normal production process. In the absence of EDM punching equipment, we use SCX-73-type wire cutting bed in a hardened CrWMn material processed through the wire hole, the smooth processing of the die, to solve the urgent need of production, our specific Approach is this: First, according to the size of the wire hole with a hollow copper electrode processing as shown. The magnetic dial gauge holder is fixed on the wire holder, and the negative electrode of the hollow electrode and the high frequency power supply are clamped on the watch holder at the same time. Adjust the watch holder so that the electrode is perpendicular to the workpiece as much as possible, and the X and Y directions can be used. The coolant on the outlet pipe removed cover the hollow electrode of the tail end of the outlet pipe closed, the cooling fluid produced by Beijing DX-1 ~ # concentration of about 10%. Processing, the high-frequency power transferred to the fifth gear, slow and fine