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鉆頭蹦刃問(wèn)題 |
點(diǎn)評(píng)
不好意思,版主。D10.8鉆頭,頂角135°(廠家定,一直沿用),加工合金鑄鐵,在一個(gè)預(yù)鑄凸臺(tái)上鉆92深的直盲孔,外冷卻。夾具支撐塊和預(yù)定位塊支撐定位,工件兩端油缸夾緊。夾具一直沿用幾年了~
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點(diǎn)評(píng)
嚴(yán)重同意 新鉆頭也要磨,圖三中主切削刃有略微的弧型,從這一點(diǎn)看 應(yīng)該不是新鉆頭,假貨
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