What are the design principles of automotive hardware stamping parts?

2021-03-16 16:03:40

Automobile stamping parts, as the name suggests, are metal stamping parts of automobile parts. In the automotive stamping parts, some parts become automotive parts directly after stamping, and the other parts become automotive parts after welding, machining, or painting. There are many kinds of automobile stamping parts, such as spring tray, spring seat, spring bracket, end cover, cover, compression valve cover, compression valve sleeve, oil seal seat, bottom cover, dust cover, impeller, oil cylinder, lug, bracket and so on.

A large number of cold stamping processes are used in the production of automobile stamping parts, which is suitable for the needs of multi variety and mass production of automobile stamping parts industry. In medium and heavy-duty vehicles, most of the covering parts such as body panel, and some load-bearing and supporting parts such as frame, carriage and other auto parts are stamping parts. The steel used for cold stamping is mainly steel plate and strip, accounting for 72.6% of the total vehicle steel consumption. Cold stamping materials are closely related to the production of automobile stamping parts. The quality of materials not only determines the performance of products, but also directly affects the process design of automobile stamping parts, and affects the quality, cost, service life and production organization of products. Therefore, reasonable selection of materials is an important task It's an important and complicated job.

Design principles of metal stamping parts:

(1) the designed hardware stamping parts must meet the product use and technical performance, and be easy to assemble and repair.

(2) the designed stamping parts must be conducive to improving the utilization rate of metal materials, reducing the varieties and specifications of materials, and reducing the consumption of materials as much as possible. If allowed, low-cost materials should be used to make the parts blanking without waste and with less waste as far as possible.

(3) the designed stamping parts must be simple in shape and reasonable in structure, so as to simplify the die structure and the number of processes, that is, to complete the processing of the whole parts with less and simple stamping processes, reduce the use of other methods of processing, facilitate the stamping operation, facilitate the organization of mechanized and automated production, and improve labor productivity.

(4) the designed stamping parts, under the condition of ensuring normal use, try to make the requirements of dimensional accuracy grade and surface roughness grade lower, which is conducive to the exchange of products, reducing waste products and ensuring stable product quality.

(5) the designed stamping parts should be beneficial to use the existing equipment, process equipment and process flow to process them as much as possible, and to extend the service life of the stamping die.