The production process of coil springs
There are various manufacturing processes for springs, including coiling, cutting, heat treatment, spring grinding, correction, surface treatment, assembly, etc. But are not limited to the above.The following spring manufacturing processes will be described using some of our YUUSPRING’S as examples.
Coiling：
Forming the basic shape of a spring by bending and wrapping metal wire or strip according to specific specifications and requirements.
Heat Treatment:
Placing preliminarily processed springs into a furnace, heating them at a certain temperature for a period, followed by suitable cooling to alter the material’s physical properties and strength.
Two-end grinding:
Precise grinding ensures evenness, enhancing spring connectivity and stability.
Forming:
Bending, pressing, or winding previously processed metal wires or strips through mechanical or thermal processes to achieve the final spring shape.（We ususlly use “Spring fixed dynamic pressed” this method.)
Rectification shaping:
Accurately adjusting spring shape to meet specifications.
Surface Treatment:
Treating the spring’s surface through methods such as galvanization, spraying, or electroplating to enhance corrosion resistance and surface hardness.
Assembly:
Bringing together different components to create a complete spring structure, which may involve connectors, end treatments, and related steps.
These manufacturing processes are often combined and selected based on specific design requirements and the intended use of the springs.