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五金冲压件与铸件、锻件相比，具有薄、匀、轻、强的特点。冲压可制出其他方法难于制造的带有加强筋、肋、起伏或翻边的工件，以提高其刚性。秦皇岛五金冲压件由于采用精密模具，工件精度可达微米级，且重复精度高、规格一致，可以冲压出孔窝、凸台等。冷冲压件一般不再经切削加工，或仅需要少量的切削加工。热冲压件精度和表面状态低于冷冲压件，但仍优于铸件、锻件，切削加工量少。

管材的锯削：选用细齿锯条，当管壁锯透后随即将管子沿着推锯方向转动一个适当角度，再继续锯割，依次转动，直至将管子锯断。锯割时管子必须夹正。

Cutting of pipe: select a fine toothed saw blade, when the tube wall is sawed through a proper angle along the direction of the push saw, then continue sawing and turn, until the pipe is sawed. When sawing is cut, the pipe must be clamped.

检查、核对模具和冲压机床。在安装模具前，要确认冲压机床为冲压工艺指定的型号，并检查模具的尺寸、工作要求是否与指定冲压机床的技术参数（装模高度、滑块行程等）相匹配，冲压机床的状态足否良好。

Check and check die and stamping machine. Before installing the mould, it is necessary to confirm that the stamping machine is the designated type of the stamping process, and check the size of the die and the work requirements to match the technical parameters of the designated stamping machine (the height of the die, the slider stroke, etc.), and the state of the stamping machine is good or not.