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C
<p>补充一点——放电参数设好了不代表电极没问题。石墨电极的损耗跟铜电极不一样，粗加工和精加工要分开考虑。</p>
S
<p>顶出系统设计这块特别有感触。十年前做一套医疗产品模具，顶针布局不合理，产品顶出来总有变形。后来师傅教了一招：顶针尽量布置在筋位和骨位下方，受力均匀不容易变形。这些细节最考验功底。</p>
F
<p>德国人的邮件风格确实如此。我的经验是：邮件里把所有确认点写清楚让他打勾，比描述一大段效果好。</p>