The main difference between special-shaped springs and conventional springs is that the springs themselves are irregular, with bends and numerous complex angle designs. They are suitable for some special occasions. So, what are the processing methods for using special-shaped springs?

1. Processing of large springs: Due to its large wire diameter (reaching 16-200 millimeters for the hot-rolled wire), the large spring is also known as a hot-rolled spring. Its production process adopts the hot-rolling method. After being heated, it is easy to be distorted and shaped, and has very little resilience. After being formed, it only needs to undergo quenching treatment.

2. The locomotive spring is so named because of its high yield strength or hardness. The manufacturing process of this spring is similar to that of large springs, except that the initial processes such as rolling, coiling, and drawing of the spring material require stricter control.

3. The compression spring, because it can withstand a force that is much greater than the usual, is called a compression spring. The manufacturing process is much more difficult than the previous two types. It is not at the same level. During the manufacturing process, considering the quality of the finished product after production, in addition to the design and manufacturing processes of machine springs and large springs, its initial production has some special requirements. That is, the cross-section of the material should be circular, which is conducive to a greater recovery ability after production and better retention.

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