汽车零件有很多知识，因此延长汽车零件寿命的秘诀有些人熟悉，您不妨注意一下，这更有利于保持汽车的安全性和稳定性。的知识，使汽车零件的使用寿命更长的秘诀已为人所熟悉，您不妨注意一下，它更有利于保持汽车的安全性和稳定性。

Notices for surface treatment of automobile sheet metal parts. First: It should be noted that the state of the workpiece, all electrochemical treatment must be carried out in the bulk of the workpiece, the assembly feel that it can not be electrochemical treatment. Because in the process of treatment, the solution will be trapped in the gap of the assembly and cause corrosion to the workpiece.

As the name implies, automotive stamping parts are metal stamping parts that constitute automotive parts. In automotive stamping parts, one part becomes automotive parts directly after stamping, and the other part can only become automotive parts after stamping through welding, mechanical processing, or painting process.

Auto sheet metal processing is the technology to process sheet metal. It includes not only the traditional cutting, blanking, bending and forming methods and process parameters, but also the structure and process parameters of various cold stamping dies, working principles and operation methods of various equipment, as well as some new stamping technology and process. More and more sheet metal processing enterprises realize that proper surface treatment can play a very good role in decoration and protection of the product surface, improve the product's "face value", and then improve market competitiveness.

在各种定制橱柜底盘，空调钣金零件中加工汽车钣金零件时，需要对它们进行表面处理，例如喷涂，电镀，阳极，电泳等。由于某些钣金材料不具有防锈，防腐蚀的功能，因此需要进行表面处理以达到防锈，防腐蚀的效果。另外，表面处理还可以达到美化产品外观的效果。

Spray painting of automobile sheet metal parts is an operation with professional skills. In operation, attention should be paid to the uniformity of the spray paint, the smoothness of the paint surface, and whether the color of the spray paint is consistent with the color of the car body. Therefore, when our car bumps into the need for spray painting, we should first understand that spray painting of automobile sheet metal should pay attention to one. Some things, in order to do services will not be pitted, then what matters need attention?

The application of automobile stamping parts processing technology is more and more extensive. Many parts, including tools, are stamped by machines. Like automobile lampshade, we all know that the shape of lampshade is elliptical, and the parts of this shape are not easy to produce. Using stamping technology, they can be realized very well.

众所周知，汽车车身上有数百个零件，而自动冲压零件占车身的很大一部分。汽车零件的硬件冲压是利用常规或专用冲压设备的力量，对具有一定形状，尺寸和性能的产品零件进行生产的技术，使钣金件直接在模具中受到变形力和变形的作用。为了获得好的冲压产品，有必要做好冲压前的设计。

In our life, we often rust our daily necessities for some reasons, but there are the same problems in my sheet metal processing console. Because of the storage problem, when we put the sheet metal processing console in the basement, its humidity will be relatively high. After being damp, we should timely carry out moisture-proof and moisture-absorbing work on it.

Residual medicines and additives are vomited from the inside of precision stamping parts, and the tin layer attached to the plating is easily corroded by these substances. It causes surface oxidation and yellowing of the coating. Inadequate treatment and no drying of the workpiece can also lead to yellowing of the coating. Adhesion of tetravalent tin, excessive additives, zinc impurity pollution in bath (less likely), insufficient thickness of coating, iron impurity pollution (phenomenon is not easy to find in the process of plating) and storage environment. These are the reasons that lead to yellowing of precision metal stamping parts.

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。