What are the application advantages of precision automotive stamping technology?

2020-07-14 11:32:29

Precision stamping, abbreviated as precision stamping, is a cutting-edge forming technology in today's stamping process. In a single stamping process, parts with high dimensional accuracy and good roughness of shear surface can be obtained, and they have certain three-dimensional shape (using composite forming technology). It has the characteristics of high quality, high efficiency, low consumption and wide application.

The fine blanking process originated from the precision requirements of the stamping surface finish of stamping parts. It has long been used in the blanking and punching of thin plane parts in the instrument industry. Nowadays, it is more and more combined with other cold forming processes, and widely used in various industrial fields, especially in the heavy plate and cold rolled coil required by the automobile industry.

Compared with common stamping parts, the quality of parts processed by fine blanking has obvious advantages, such as bright and clean stamping surface, high dimensional accuracy and flatness. After deburring, it can be assembled directly, without cutting, cutting, grinding, straightening and other processing procedures required after common stamping, which saves a lot of investment in auxiliary equipment, manpower, material resources, operating costs, etc. automobile stamping parts not only improve the production efficiency, but also avoid the precision loss of each process, and ensure the repeated precision and production of parts in batch production Production reliability.

The dimensional tolerance of precision stamping parts can reach T7-T8 grade accuracy, and the roughness of shear surface can reach ra0.8-0.4 μ M. For many parts with complex shapes, such as gears, ratchets, sprockets, cams and other flat parts, a fine blanking process can be completed in a few seconds, reducing a large number of milling, planing, grinding, boring and other cutting processes, which can increase the work efficiency by more than 10 times.

The fine blanking process not only saves a lot of energy consumption of the cutting machine tool due to the reduction of the cutting process, but also reduces the cost and energy consumption due to the strong cold work hardening effect of the surface after the fine blanking sometimes replacing the subsequent quenching process. For example, the glass lifter of the automobile, after adopting the fine blanking production process, cancels the original quenching process.

Fine blanking technology has been widely used in automobile, motorcycle, textile machinery, agricultural machinery, computer, household appliances, instruments, measuring tools and other fields.