Steel Stamping Part

Our company focuses on the research, development, and production of Steel Stamping Parts solutions: Relay Armature Stamping Parts, Relay Yoke Stamping Parts; Stainless Steel Stamping Parts; and Carbon Steel Stamping Parts. These Steel Stamping Parts meet the needs of multiple fields, such as power, new energy, and industrial equipment.

1. Material properties and selection

Typical grade: DT4E
Key parameters:
Iron content ≥99.5%
Coercive force ≤96A/m
Magnetic induction intensity ≥1.4T
Hardness HV80-120

2. Technical requirements for key components of relays

3. Precision stamping process control
(1). Mold technology:
Use carbide mold steel
The blanking clearance is controlled at 5-8% of the material thickness
The mold life is more than 30 million times
(2). Process control:
Burr control ≤ 0.03mm
Dimension tolerance ±0.05mm
Magnetic properties 100% sampling inspection

4. Surface treatment process
Copper plating, nickel plating treatment:
Thickness 3-5μm
Contact resistance <10mΩ

5. Application in relays
Ensure action response time <5ms
Contact pressure stability ±5%
Electrical service life more than 100,000 times

1. Carbon steel material characteristics
Common carbon steel materials include SPCC, SPHC, Q235, S235JR, etc. The main features are as follows:

Good formability, suitable for various stamping processes such as stretching, bending, punching, etc.;

High strength and low cost, suitable for mass production of automotive and electrical structural parts;

Excellent welding performance, convenient for subsequent processing and assembly.

2. Technical requirements for stamping and welding
(1). Technical requirements for carbon steel stamping parts:

Dimensional tolerance is controlled within ±0.05mm, and key safety parts need to be more stringent;

The surface after stamping is required to be free of cracks, indentations, and burrs;

Special workpieces (such as deep-drawn parts) need to be drawn multiple times.

(2). Technical requirements for carbon steel welding components:

Meet the requirements of fatigue resistance and corrosion resistance, the weld is uniform and full, without cracks and pores;

Use various processes such as spot welding, arc welding, laser welding, etc. to ensure the connection strength and beauty;

Important welds need to be tested by ultrasonic or X-ray to ensure quality.

3. Surface treatment
According to different application requirements, we provide a variety of surface treatment processes for carbon steel stamping parts and carbon steel (1). welded components:
Electrophoretic coating (E-Coating): Improve corrosion resistance, widely used in automotive chassis parts;
Hot-dip galvanizing or cold galvanizing: Enhance salt spray resistance and rust resistance;
Powder spraying: Improve appearance texture and wear resistance.

4. Product process control
Develop detailed stamping process cards and welding operation instructions;

Establish multiple process detection nodes for stamping, welding, and surface treatment;

Use SPC statistical process control methods to prevent potential defects.

5. Application in the automotive and electrical industry

Automotive field: body reinforcement, chassis connection bracket, seat frame, door hinge bracket, etc.

Electrical industry: large switch housing, circuit breaker bracket, household appliance frame structure.

We provide durable, safe, and reliable metal structural parts for global automotive and electrical industry customers through high-precision carbon steel stamping and high-reliability carbon steel welding processes.

1. Factory core competitiveness
As a leading metal processing enterprise in Xiamen, we have the following core advantages:
(1). Full industry chain production capacity:
Equipped with more than 30 50-200 ton precision stamping equipment
Owning automated welding robot workstations
Monthly production capacity reaches 30 million stamping parts and 1 million sets of welding components

(2). Industry solution capabilities:
The monthly supply of relay metal parts exceeds 50 million pieces
Automotive structural parts passed the IATF16949 certification

2. Xiamen Industrial Cluster advantages
(1). Supply chain advantages:
Covering more than 200 supporting suppliers within a radius of 30 kilometers
The raw material procurement cycle was shortened to 24 hours

(2). Technical synergy advantages:
The company's core team of technical personnel comes from Xiamen Hongfa Relay Group, with more than 20 years of experience in the relay industry;
Cooperating with customers such as Xiamen Farad, Germany ABB, Japan Panasonic, etc., has accumulated a lot of successful industry experience.

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