Metal Stamping Parts Crown Spring

The crown spring is a mechanical part made by stamping technology. It is widely used in mechanical equipment to adjust pressure and displacement. Stamping technology is an efficient and high-precision processing technology. It can achieve mass crown spring production while ensuring quality and performance. The crown spring is a precision stamping forming manufacturing process, the metal sheets feed into stamping equipment, and the stamping force forms crown springs.
It is also necessary to chamfer both ends of the crown spring to improve its contact performance.
For example, the stamping process can punch a hole in the sheet and then perform curling.

Stamping Parts Crown Spring Basic Principles Stamping Technology

Should Be Chosen The Right Material

Crown springs can be made of different materials, such as steel, copper, alloys, etc. Different materials have different properties and characteristics, so when choosing materials, we should take comprehensive consideration of the parts’ specific working conditions and the equipment requirements. For example, if the mechanical equipment needs to work in a high temperature or corrosive environment, it is necessary to choose a material that is resistant to high temperatures or corrosion; if the mechanical equipment needs to withstand large loads or vibrations, it is necessary to choose a material with high strength.

Beryllium Bronze

Features: Beryllium bronze is a high-performance copper alloy with high strength, high elasticity, high conductivity, good high-temperature creep resistance, and fatigue resistance. It is known as the “king of non-ferrous metal elasticity” and performs well in high-temperature and corrosive environments.
Application: Widely used in aerospace, automotive connectors, electronic components, and other fields. For example, in automotive connectors, beryllium bronze crown springs can withstand high currents and high vibrations.

Phosphor Bronze

Features: Phosphor bronze has good elasticity and wear resistance, it also has a certain corrosion resistance degree. It is a more economical choice and suitable for cost-sensitive applications.
Application: it is commonly used in home appliances, general electronic equipment, and other occasions with relatively low performance requirements.

Stainless Steel

Features: Stainless steel has high strength, good corrosion resistance, and wear resistance. It performs well in wet and corrosive environments, the stainless steel while being able to withstand large loads and vibrations.
Applications: it is suitable for mechanical equipment that needs to work in harsh environments, such as chemical equipment, marine equipment, etc.

Brass And Copper

Features: Brass and copper have good electrical and thermal conductivity, but relatively low strength and wear resistance.
Applications: It is suitable for occasions with high electrical conductivity requirements, but small loads and vibrations, such as some small electronic equipment.

Stamping Parts Size And Shape Should Be Appropriate

The crown spring size and shape directly affect its elasticity and deformation capacity, so the appropriate size and shape are selected according to the equipment requirements. for example, if the mechanical equipment needs to adjust to a smaller displacement or pressure, we should select a smaller size and shape; if the mechanical equipment needs to withstand a larger displacement or pressure, we should select a larger size and shape.

After metal stamping, crown springs usually need a series of subsequent surface treatments to improve their wear resistance, corrosion resistance, and overall performance. MK CNC is a stamping parts manufacturer, we make surface treatments, heat treatment, as well as strict quality inspection.

Stamping Parts Crown Spring Heat Treatment

Heat treatment can change the crown spring’s internal structure, improve hardness, and increase wear resistance. Common heat treatment methods include:

Quenching: Rapid cooling changes the crown spring’s internal structure to improve its hardness and strength.

Tempering: Tempering after quenching can eliminate internal stress, make the crown spring structure more stable, and reduce deformation and cracks.

Nitriding: Nitrogen reacts with the steel on the surface of the crown spring under high temperature and high pressure to generate a tough nitride layer, which significantly improves hardness and wear resistance.

Low-temperature carbonitriding: Combining tempering with low-temperature carbonitriding can significantly improve the fatigue life and corrosion resistance of the crown spring, and is suitable for coil springs.

Stamping Parts Crown Spring Quality Inspection

After the subsequent processing is completed, the crown spring needs to undergo strict quality inspection to ensure that it meets the corresponding standards and requirements. Quality inspection includes:
Appearance inspection: Check whether there are burrs, cracks, corrosion pits, and crown springs other defects on the surface.
Dimension inspection: Ensure crown spring dimensional accuracy meets the design requirements.
Performance test: including separation force test, plug-in force test, tension test, etc., we verify the crown spring’s mechanical properties.
Electrical performance test: the crown springs need to transmit current, contact reliability test, and plug-in force test, we ensure their electrical performance required.

What Are The Benefits Of Stamping Parts Crown Spring?

First of all, precision crown springs can improve the mechanical equipment’s working efficiency and stability. When mechanical equipment needs to adjust pressure and displacement, the crown spring can be adjusted through elastic deformation, so the mechanical equipment is more stable and smooth.

Secondly, precision crown springs can improve the mechanical equipment’s safety and reliability.
When mechanical equipment needs to bear large loads or vibrations, the crown spring can buffer and disperse the loads or vibrations through elastic deformation, thereby protecting other parts of the mechanical equipment from damage. Precision crown springs can increase the life and maintenance cycle of mechanical equipment. When mechanical equipment needs to adjust or replace the crown spring, if you choose a precision crown spring, you can reduce the number and time of maintenance, thereby extending the service life of the mechanical equipment.

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