What is Coil Spring Shot Peening Machie ?

What is Coil Spring Shot Peening Machie ?

Coil Spring Shot Peening Machine is a specialized equipment used to enhance the fatigue strength and durability of coil springs through a process known as shot peening. Here's a detailed explanation of what a Coil Spring Shot Peening Machine is and its applications:

1.Process Description: The machine operates by bombarding the surface of the coil spring with small, pellet-sized shot at high velocity, which creates tiny dimples on the surface. This process induces a layer of compressive stress on the surface of the metal, which strengthens the metal and makes it more resistant to fatigue, corrosion, and cracking.

2.Applications: Coil Spring Shot Peening Machines are primarily used for shot peening suspension springs, valve springs, and leaf springs. The process is specially designed to increase the fatigue strength of components subjected to alternating stress, improving their fatigue fracture and stress corrosion fracture resistance, and enhancing the reliability and durability of the springs.

3.Key Benefits: The use of such machines results in lower production costs due to automatic operation, high output, and uniform quality. They feature high specific blast performance, ensuring parts are always shot peened in the hot spot of the blast stream, optimizing the blast effect. The machines are also energy efficient and maintain the shot operating mixture within the desired nominal size.

4.Technical Specifications: Some technical specifications of a Coil Spring Shot Peening Machine include the ability to handle workpieces with an outer diameter of φ100~φ260 and a length of 200~400. The average productivity ranges from 1.5~3.6m/min, and the abrasive used has a diameter of 0.8~1.2mm with a hardness of HRC ≥45. The machine includes two sets of Q063RKA blast wheels with a maximum shot blasting capacity of 2×300kg/min, and a motor power of 2×18.5kW.

5.Operation: The process involves an electrically controlled adjustable conveyor roller feeding the springs into the shot peening zone of the machine chamber. The entire surface of the springs is exposed to the accelerated peening media, where the high-velocity abrasive hits and rubs the surface of the springs, quickly detaching scale, rust layer, and dirt, and providing the surface with a certain roughness.

In summary, a Coil Spring Shot Peening Machine is an essential piece of equipment in industries that require high-performance springs with enhanced fatigue life and stress resistance, such as automotive, aerospace, and industrial machinery manufacturing.