What is the manufacturing process of Dongguan Kaihao Spring Rectangular Spring?

There are two manufacturing methods of rectangular spiral spring: cold coil forming and hot coil forming. In addition, in terms of processing technology, it is usually divided into three categories: free technology, experimental technology and fixed technology.

First of all, free process is suitable for single piece or small batch production. However, this method has no complete process documents and tooling, and the process division is not rigorous. Therefore, the quality of this process is unstable and the production efficiency is low.

The testing process is suitable for mass production, but the fixed process products require high precision and cannot be used. Different from free technology, it has a certain process division. The first piece testing technology should be tested in every production, and then the process parameters should be modified before it can be put into production. The first test brings trouble to production and inconvenience to scientific management and scheduling in production.

The fixing process is suitable for the production process of batch and molded products. For example, long-term mass production, the development of supporting springs for a certain product. The process of this technology has accurate processing requirements and production guidance documents, and scientific and complete production and processing equipment. When put into production, it is carried out in strict accordance with the process regulations, with stable quality and high production efficiency. At present, the rectangular spiral spring factory prefers this processing method.