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放电加工(EDM)是模具制造中加工复杂型腔、深窄槽和硬材料的重要手段。其原理是利用脉冲放电产生的热能使工件材料熔化和汽化。电火花成型加工适用于精密模具型腔,线切割则适用于冲裁模和精密零件。放电加工的关键参数包括电流、脉宽、间隙电压和工作液类型。现代EDM设备配备自动寻边和智能放电系统,可大幅提升加工精度和效率。
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