What Are Automobile Stamping Parts?

Introduction:

Auto parts stamping parts apply external force to plates, strips, pipes, and profiles, etc. through punching machines and die to make them plastically deform or separate, so as to obtain workpieces of the required shape and size. The obtained workpieces are custom metal stamping parts.

60-70% of the world's steel products are plates, and most of them are made by stamping. For example, the car body, chassis, fuel tank, radiator plate, etc. are all stamped. There are also a large number of auto parts stamping parts in instruments, household appliances, bicycles, office machinery, household utensils, and other products.

Features:

Compared with castings and forgings, auto parts stamping parts are thin, uniform, light, and strong. Stamping can produce workpieces with ribs, ribs, undulations, or flanging that are difficult to manufacture by other methods to increase their rigidity. Due to the use of precision molds, the precision of the workpiece can reach the micron level, and the repeatability is high and the specifications are consistent. Holes, bosses, etc. can be punched out.

Stamping is an efficient production method. It uses a compound die, especially a multi-station progressive die, which can complete multiple stamping processes on a single press to achieve a complete range from strip unwinding, leveling, punching to forming and finishing Automatic production.

In addition to forming with hydraulic presses, stamping equipment generally uses mechanical presses centered on modern high-speed multi-station mechanical presses, equipped with unwinding, leveling, finished product collection, transportation, and other machinery, as well as a mold library and rapid die change device, and use Controlled by a computer program, it can form a high productivity automatic stamping production line. In the case of producing dozens or hundreds of auto parts stamping parts per minute, the processes of feeding, stamping, discharging, and waste disposal are completed in a short time. The stamping process has high production efficiency and low production cost. It can generally be produced per minute Hundreds.

Process:

Stamping is mainly classified according to process and can be divided into two categories: separation process and forming process.

The separation process is also called punching, and its purpose is to separate the stamping parts of automobile parts from the sheet material along a certain contour line and to ensure the quality requirements of the separation section. The purpose of the forming process is to make the sheet plastically deform without breaking the blank to make a workpiece of the desired shape and size. In actual production, multiple processes are often applied to a workpiece. Punching, bending, shearing, drawing, bulging, spinning, and straightening are just a few of the main stamping processes.

Custom Metal Stamping Parts

The surface and internal properties of the stamping material have a great influence on the quality of the stamped product. The thickness of the stamping material is required to be accurate and uniform; the surface is smooth, no spots, scars, abrasions, and surface cracks; the yield strength is uniform and there is no obvious directionality; the uniform elongation is high; the yield ratio is low;

In actual production, common technical tests similar to the stamping process, such as drawing performance test and bulging performance tests, are used to check the stamping performance of the material to ensure the quality of the finished product and a high pass rate. The precision and structure of the mold directly affect the forming and precision of auto parts stamping parts, and the mold manufacturing cost and life are important factors affecting the cost and quality of auto parts stamping parts.

Mold design and manufacturing requires more time, which extends the production preparation time for stamping parts of new auto parts.

Standardization of mold bases, mold bases, guides and development of simple molds (for small batch production), compound molds, multi-station progressive molds (for mass production), and the development of rapid die change devices to reduce the amount of preparation for stamping And shorten the preparation time; can make it suitable for reducing the preparation work of stamping production and shorten the preparation time; can make the advanced stamping technology suitable for large-scale production be reasonably applied to the production of small batches of multiple varieties.

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