Die Casting Die for Automotive

I hope it will be helpful to you for the manufacturing process and technical requirements of automobile Die Casting dies.

Automotive industry is one of the most important pillar industries in national economy, and its development level largely determines the comprehensive competitiveness of national economy.

With China's entry into the wto, the automotive industry will face more intense international competition. Therefore, it is very important to accelerate the improvement of technical level of China's automotive manufacturing industry and enhance the competitiveness of products in the international market. Mold industry is an important part of equipment manufacturing industry, and its technology level directly affects the development level of the whole industry.

At present, China's mold industry is in the stage of rapid development, but there is still a big gap compared with developed countries: on the one hand, because of the huge domestic market and rapid growth, many enterprises have launched one after another; On the other hand, due to the continuous introduction and promotion of foreign advanced technology and the strong entry of foreign enterprises, the problems of low domestication rate and low production efficiency are outstanding.

Traditional Stamping forming methods (including punching, bending, etc.) produce workpieces with low dimensional accuracy and large surface roughness. Small processing allowance; Defects such as complex and changeable parts, difficult to realize automatic processing, etc. have become one of the main factors that restrict the further improvement of product quality and technical progress of Chinese Auto Parts manufacturers.

With the continuous development of modern science and technology and the wide application of new materials and processes, "replacing steel with plastic" has become a development trend. Plastic molds have the following characteristics:

1. Wide source of materials;

2. Simple forming process;

3. Easy to realize automatic production.

At the same time, it also has shortcomings:

1. Higher cost;

2. Short life;

3. It is easy to deform or crack.

In order to solve the above problems, new forming methods and means have been actively explored at home and abroad in recent years. In this paper, several new forming methods and means - die-casting method (abbreviated as die-casting) are introduced according to the above situation.

Die casting is a fast-forming process in which liquid metal is poured into a pre-prepared cavity. Its basic principle is to use pressure to make liquid metal flow through a specific hole into another cavity for cooling and solidification to form the required product. Different injection methods can be used according to different casting alloy types, such as gravity gate for aluminium alloy. Copper-based alloys can be self-flowing; For zinc-based alloys, ejection type, etc.