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<p>6061铣出来Ra1.6但客户要Ra0.8。试过高转速低进给改善不大。新换的没涂层刀片。是不是要用涂层刀还是调切深？</p>
<p>换涂层刀片没涂层的铝合金粘刀严重。余量留0.2-0.3mm。</p>