Automobile parts processing technology

Processing technology of automobile parts: 1. Casting; 2. Forging; 3. Welding; 4. Cold stamping; 5.; 7. Metal cutting processing; 6. Heat treatment; 7. Assembly.

Forging is a production method of pouring molten metal material into the mold cavity, cooling and solidifying, and obtaining a product. In the automotive industry, many parts are made of pig iron in pig iron, accounting for about 10% of the net weight of the vehicle, such as cylinder liner, transmission housing, steering system housing, automobile rear axle housing, brake system drum, various Sand type is generally used for the production of cast iron parts such as brackets.

In the automobile industry, the production method of casting is widely used. Forging is divided into random forging and solid model forging. Random forging is a production method of placing blanks of metal material on iron felt to withstand impact or burden, also known as 'quenching'. The blanks of vehicle worm gear and shaft are produced and processed by random casting. Forging solid model is a production method of placing metal blanks into the mold cavity of the forging die to withstand impact or load. Forging solid model is like a batter being crushed into cookies in the template.

Cold die or sheet stamping mold is a production method for cutting or forming a sheet of metal material under force in a stamping mold. Daily necessities, such as braised pots, lunch boxes, washbasins, etc., are made by cold stamping production methods. The automotive parts produced and processed by cold stamping molds include: automobile engine oil pan, brake system base plate, automobile window frame and most body parts. Such parts are generally formed through blanking, punching machine, bending, reverse edge, renovation and other processes. In order to better produce cold stamping parts, stamping molds need to be made.

Electric welding is a production method of local heating or stamping two pieces of metal materials at the same time. Generally, the welding process of holding a mask in one hand and the other holding a welding plier and a wire connected to the cable is called manual arc welding. However, manual arc welding is rarely used in the automotive industry and is most commonly used in body production. It's welding. Welding is suitable for welding of cold-rolled steel plates. In actual operation, two electrodes are used to pressurize the two thick steel plates to make them fit together, and at the same time, the current flow is heated and melted to make them firm and tightly connected.

Metal material turning production and processing is to drill holes in metal material blanks step by step with milling cutters; so that the product can obtain the desired product appearance, specifications and roughness. The turning production and processing of metal materials includes two methods: milling and machining. Milling workers are production methods for employees to use special tools for cutting with handmade cutting. They are sensitive and convenient in actual operation and are widely used for installation and maintenance. Processing and manufacturing rely on CNC lathes to achieve drilling, including: turning, planing, milling, drilling, grinding and other methods.

The heat treatment process is a way to reheat, insulate or cool solid steel to change its structure to meet application standards or technical standards for parts. The heating ambient temperature, the length of insulation time, and the speed of cooling efficiency will cause different structural changes in the steel. The blacksmith shop quickly cools the heated cast iron into the water (experts call it heat treatment), which can increase the strength of the aluminum parts, which is also a situation in the heat treatment process. The heat treatment methods include quenching, quenching, heat treatment, quenching, etc.

Then, according to certain regulations, various components are connected to each other to form a whole vehicle. Whether it is a component or a component that constitutes a vehicle, it needs to cooperate and associate with each other according to the requirements of the design drawings to enable the components or vehicle to achieve the set characteristics. For example, when installing the gearbox onto the clutch housing, make sure that the axis of the gearbox key shaft and the axis of the crankshaft are pointing. This core method is not adjusted by the installer (milling worker) during assembly, but is only adjusted by the design plan and production.