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我厂使用电火花机床加工各种汽车行星齿轮精锻模(附图),先后用过D6125G、D6125F、KMD-150A和D6140A电火花机床,曾用过铸铁电极、铜钨电极和紫铜电极。经过长时间的大量工艺试验和生产实践,我们认为,应用晶体管脉冲电源、紫铜电极加工3Cr2W8V较为理想。加工方法是: 1.粗、精加工只使用一个电极完成全部型腔的加工。 2.精加工采用窄脉冲低压的下冲油形式,
Our factory uses EDM to process all kinds of automobile planetary gear precision forging dies (with photos), and has successively used D6125G, D6125F, KMD-150A and D6140A EDM machines, used cast iron electrodes, copper tungsten electrodes and copper electrodes. After a long period of a large number of process tests and production practices, we believe that the application of transistor pulse power, copper electrode processing 3Cr2W8V is more ideal. Processing methods are: 1. Rough, finishing only use one electrode to complete the processing of all cavities. 2. Finishing the use of narrow pulse under pressure in the form of oil,