沖壓工藝術(shù)語（4）
壓線：強(qiáng)行局部排擠材料，在工程料片上面擠出一條溝槽，以利于折彎、成形確保工程料片精度的一種沖壓工序。
壓毛邊：強(qiáng)行局部排擠材料，從而使工程料片沖裁毛刺去除的一種沖壓工序。
抽牙：沿內(nèi)孔周圍將材料翻成側(cè)立凸起的一種沖壓工序
Stamping process terminology (4)
Line pressing: a stamping process in which materials are forced out locally and a groove is extruded on the engineering sheet to facilitate bending and forming to ensure the accuracy of the engineering sheet.
Burring: a stamping process in which materials are forced out locally to remove burr during blanking.
Tooth extraction: a stamping process in which the material is turned into a side vertical bulge around the inner hole
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