Flexible blanking process for steering knuckle forging round steel

Abstract

The invention relates to the technical field of steering knuckle manufacturing, in particular to a flexible blanking process for steering knuckle forging round steel. The flexible blanking process comprises the following steps: firstly, measuring mass of a steering knuckle finished product as M, calculating mass N of a needed round steel rod according to a theoretical value of a forging material utilization rate, and calculating volume V of the needed round steel rod according to density of the round steel rod; then, blanking by use of a saw, measuring diameters of a plurality of positions of the round steel in a length direction along with forward movement of the round steel during blanking; calculating to obtain length when the mass of the rod is N; and blanking according to a length which is 100.8%-102% of the length. According to the flexible blanking process, the problems that blanking is carried out according to fixed length , and defective products are generated as a result of shortage of part of rod raw materials due to fluctuation of diameters of the round steel in the prior art are avoided. Flexible blanking is carried out according to diameter changes of the round steel, so that adverse effect caused by fluctuation of round steel diameters is reduced, and therefore, less machining allowance can be reserved, material waste is reduced, a material utilization rate is increased, and follow-up processing workload is reduced.

Description

technical field [0001] The invention relates to the technical field of steering knuckle manufacturing, in particular to a flexible blanking process for forging round steel of a steering knuckle. Background technique [0002] Round steel is a commonly used forging steel, such as automobile steering knuckles, steering arms and other auto parts. Forging includes open forging and closed forging. Taking the steering knuckle as an example, open forging is used in the prior art. Because there are many flash edges, the material utilization rate is generally 85% to 88%. With closed forging, the material utilization rate Generally, it can be increased to 95%, or even higher. However, in production practice, it is found that whether it is open forging or closed forging, if blanking is carried out according to the theoretical value of the forging material utilization rate, it will lead to an increase in the defective rate of the product, that is, some products are not fully filled, and...

AI Technical Summary

Problems solved by technology

However, in production practice, it is found that whether it is open forging or closed forging, if blanking is carried out according to the theoretical value of the forging material utilization rate, it will lead to an increase in the defective rate of the product, that is, some products are not fully filled, and the forging is defective, resulting in product failure. Scrapping. In order to solve this problem, the blanking length of the forging is generally increased in production practice, and the cavity volume is enlarged. Although the problem of insufficient filling of the product is solved, the utilization rate of the material is reduced, and the work of subsequent processing is increased. quantity