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，鱼尾板哪家好，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.

手锯加工方法

扁钢的锯削：在扁钢锯口处划一周圈线，分别从宽面的两端锯下，两锯缝将要结接时，轻轻敲击使之断裂分离。这样锯削效率高，而且能较好地防止锯齿崩缺。反之若从窄面下锯，鱼尾板规格，非但不经济，而且只有很少的锯齿与工件接触，鱼尾板，工件越薄，锯齿越容易被工件的棱边钩住而折断。

Processing method of hand saw

Sawing of flat steel: a circular line at the cutting edge of flat steel， which is cut down from the two sides of the wide surface. When the two saws will be tied， it will be gently tapped and broken apart. The sawing efficiency is high， and the sawtooth collapse is prevented. On the ， if it is sawed under the narrow face， it is not economical，鱼尾板生产， and only a few teeth are touched with the workpiece. The thinner the workpiece is， the more easily the sawtooth is caught and broken by the edges and edges of the workpiece.

简单来说钣金件是金属薄板壳体，冲压件就是用拉伸机或冲床等加工的工件1，钣金件在折弯过程中厚度不会有变化，但在汽

车钣金壳体中应为敲击等原因，一部分表面会有一定变化。冲压厂是不能确定落料尺寸的，应该是在定做模具时由模具厂试定出来的。

In a simple way， the sheet metal part is a metal sheet shell， and the stamping part is 1 of the workpiece， which is processed by a drawing machine or a punch press. The thickness of the sheet metal parts will not change during the bending process， but in the steam.

The surface of the automobile shell should be knocked and so on. Part of the surface will change. The stamping plant is unable to determine the blanking size. It should be determined by the mold factory when making the mould.

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