如今，五金冲压件在中国非常普遍，并且大小制造商众多。五金冲压件在冲压过程中，如果不注意表面很容易损坏，那该如何解决这个问题呢？

Precision stamping die can be classified into three categories as follows: engineering die, also known as "single process die", refers to the die that can only complete one stamping process in one stroke of stamping. After the completion of this project, it is necessary to take the product out of the mould manually or with a manipulator, and then put it into the mould of the next station to continue production, until the latter process of the mould is completed, the whole product is not completed. Mould maintenance is simple, but the production is time-consuming and laborious, which requires more labor and time costs, and the rejection rate of products is high.

汽车冲压件是在冲压力的作用下获得的，因此会存在一定的变形，尺寸，形状等方面的相应变形。对于冲压零件，钣金件，模具和设备是成形过程中不可或缺的三个要素，它们对冲压零件的成形质量起着至关重要的作用。

汽车零件冲压件的测试方法如下： 触摸测试：用干净的纱布擦拭外壳表面。检查人员需要戴上触摸手套，以沿着冲压部分垂直靠近冲压部分的表面进行触摸。这种检查方法取决于检查员的经验。如有必要，可将可疑区域打磨并用油石检查，但这是一种有效且快速的检查方法。

Stamping process can be roughly divided into separation process and forming process (also divided into bending, deep drawing, forming) two categories. Separation process is to separate stamping parts and blanks along a certain contour line in the stamping process, and the quality of the separated section of stamping parts must meet certain requirements. Forming process is to make the stamping blanks plastic deformation without destroying and transform into the required finished product shape, and also to meet the requirements of the size of the common. Poor and other requirements.

In the production process of automobile sheet metal parts, there are certain requirements for stamping technology and stamping die. In high-speed stamping equipment and multi-function stamping die, only "high-speed" and "multi-function" can not meet the production requirements, only to achieve continuous conveying of sheet metal to stamping machine and stamping die, and stamped sheet metal workpiece can be removed from the stamping die and conveyed to the next stamping worker in a very short time.

Metal plastic forming is a process in which metal materials are processed by means of their plastic properties to give them the desired shape. After forming, the structure and properties of metal materials are improved and improved.

The anti-collision beam of automotive parts is by no means the fundamental factor to ensure the safety of the personnel in the car, but it is meaningful to the safety. Its function is reflected in the low-speed collision, while in the high-speed accident, the anti-collision beam of automotive parts is powerless.

It is obvious that the necking of automobile stamping parts is difficult to detect. First of all, the mechanism of material deformation is understood. The process of material stretching and plastic deformation is mainly composed of three stages: uniform elongation stage, local elongation stage and cracking stage.

洛氏硬度计用于金属冲压件的硬度测试。形状复杂的小型冲压零件可用于测试平面是否很小，无法在普通台式洛氏硬度计上进行测试。

Generally speaking, the working rhythm of stamping machine determines the production rhythm of stamping production line. The working time of the feeding and unloading mechanism and the workpiece conveying mechanism of the stamping production line should coincide with the stamping time of the stamping machine tool. In order to reduce or eliminate the assistant time of punching machine and die as much as possible, the loading and unloading device of sheet metal and the transport mechanism of workpiece must be able to complete the tasks of loading and unloading and conveying of workpiece as soon as possible so as to reduce the downtime of punching production line.

车身安装在底盘的框架上，由驾驶员和乘客携带或装载。公共汽车主体通常是整体结构，而卡车主体通常由驾驶室和集装箱组成。

许多车主认为，喷涂钣金零件后需要使用相同颜色的汽车漆，因此在选择钣金零件时会忽略钣金零件的喷涂过程，认为这并不重要，但是这种想法是不正确的。为了防止氧化和生锈，钣金零件在出厂前需要进行喷涂。确实，更换钣金零件后的喷涂连接件不仅可以色调其颜色，而且还可以保护并防止氧化。

​Body straightening refers to the process of repairing parts damaged by accident or fatigue to the "state" of the technical standard when the vehicle leaves the factory through a certain external force.