五金沖壓件與鑄件、鍛件相比，具有薄、勻、輕、強的特點。沖壓可制出其他方法難于制造的帶有加強筋、肋、起伏或翻邊的工件，以提高其剛性。秦皇島五金沖壓件由于采用精密模具，工件精度可達微米級，且重復(fù)精度高、規(guī)格一致，可以沖壓出孔窩、凸臺等。冷沖壓件一般不再經(jīng)切削加工，或僅需要少量的切削加工。熱沖壓件精度和表面狀態(tài)低于冷沖壓件，但仍優(yōu)于鑄件、鍛件，切削加工量少。

五金沖壓件材料的硬度檢測，其主要目的就是確定購入的金屬板材退火程度是否適于隨后將要進行的沖壓件加工，不同種類的沖壓件加工工藝，需要不同硬度級別的板材。

stamping material hardness testing, the main is to determine whether the purchase of metal sheet annealing is suitable for subsequent stamping parts processing, different types of stamping processing technology, the need for different hardness levels of the plate.

槽鋼的鋸削：槽鋼的鋸削與扁鋼一樣，但是要分二次從寬邊面往下鋸，不能在一個面上往下鋸，應(yīng)盡量做到在長的鋸縫口上起鋸，因此工件必須多次改變夾持的位置。

Channel steel sawing: the channel sawing of the channel steel is the same as that of the flat steel, but it must be sawed down two times from the wide side, and can not be sawed down on one surface, and should be sawed on the long saw mouth as far as  so the  of the clamping must be changed many times.