五金沖壓件加工包括沖裁、彎曲、拉深、成形、精整等工序。沖壓件加工的材料主要是熱軋或冷軋（以冷軋為主）的金屬板帶材料，例如碳鋼板、合金鋼板、彈簧鋼板、鍍鋅板、鍍錫板、不銹鋼板、銅及銅合金板、鋁及鋁合金板等。

stamping process includes blanking, bending, drawing, forming, finishing and other processes. The main materials for stamping parts are hot rolling or cold rolling (cold rolling), such as carbon steel, alloy steel plate, spring steel plate, galvanized plate, tin plate, stainless steel plate, copper and copper alloy plate, aluminum and aluminum alloy plate.

簡單來說鈑金件是金屬薄板殼體，沖壓件就是用拉伸機(jī)或沖床等加工的工件1，鈑金件在折彎過程中厚度不會有變化，但在汽

車鈑金殼體中應(yīng)為敲擊等原因，一部分表面會有一定變化。沖壓廠是不能確定落料尺寸的，應(yīng)該是在定做模具時由模具廠試定出來的。

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.

手鋸加工方法

扁鋼的鋸削：在扁鋼鋸口處劃一周圈線，分別從寬面的兩端鋸下，兩鋸縫將要結(jié)接時，輕輕敲擊使之?dāng)嗔逊蛛x。這樣鋸削，而且能較好地防止鋸齒崩缺。反之若從窄面下鋸，非但不經(jīng)濟(jì)，而且只有很少的鋸齒與工件接觸，工件越薄，鋸齒越容易被工件的棱邊鉤住而折斷。

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, 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.

手鋸鋸削的注意事項

鋸條的松緊要合適，且鋸割時壓力不能太大，以防折斷傷人；

當(dāng)鋸縫歪斜時，不可急于糾正，而需要慢慢地逐步糾正。

Notice of hand saw cutting

The tightness of the saw blade should be suitable, and the pressure should not be too large during sawing, so as to prevent breaking and hurting people.

When the SAW seam is skewed, it can not be corrected in a hurry, but it needs to be corrected gradually.