Stamping Mold Parts

Stamping Mold Parts are core components used in metal stamping processes and are an important part of the mold industry. These parts are directly involved in the shearing, bending, strEtching, and forming of metal sheets. They are usually made of high-hardness tool steel or powder metallurgy materials, with high wear resistance, high strength, and good dimensional stability.

Stamping Mold Parts usually include but are not limited to: punch, die, guide post/bushing, stripper plate, positioning parts, spring system, etc.

2. Features

1. High hardness and wear resistance

Description: Stamping mold parts must withstand thousands or even millions of impacts and frictions, and their materials must have high hardness and excellent wear resistance.

Common materials and data:

SKD11 (hardness up to HRC 60~62)

ASP23 powder high-speed steel (HRC 63~65, wear resistance increased by More than 40%)

Carbide (such as YG15, suitable for stainless steel stamping)

Technical advantages: excellent wear resistance, effectively extending the life of the mold and reducing the frequency of replacement.

2. High-precision dimensional control

Description: The parts have high processing accuracy to ensure that the processing errors of the shape, hole position, bending, etc. of the stamping parts are within the allowable range.

Professional data:

The processing tolerance can be controlled within ±0.002 mm

The surface roughness can reach Ra 0.1 μm

Concentricity and parallelism are controlled within 0.01 mm

Technical advantages: Improve product consistency, reduce scrap rate, and are suitable for automated high-speed stamping production lines.

3. Diversified structural design supports complex processes

Description: Different structural parts can be provided according to the needs of the stamping process, including corresponding parts of the forward die, compound die, and stretching die.

Functions of common structural parts:

Stripping pin: ensure that the material is stripped from the punch in time

Guide pin group: ensure that the mold moves up and down in unison to reduce deviation

Wedge structure: adapt to angle forming or punching

Technical advantages: flexibly support complex, batch, and multi-angle stamping needs.

4. Excellent heat treatment performance

Description: High-end stamping die parts need to have stable heat treatment performance to avoid processing stress concentration and deformation.

Processing technology and data:

Vacuum heat treatment: improve hardness and eliminate internal stress

Cold treatment (Sub-Zero): prevent dimensional changes

Surface treatment: such as nitriding, PVD coating (such as TiN hardening layer hardness can reach HV 2300)

Technical advantages: improve impact resistance and fatigue resistance, and ensure stamping stability.

5. Standardization and modular design

Description: Modern stamping die parts tend to be modular and replaceable, which is convenient for maintenance and upgrading.

Industry standards:

Comply with DIN/ISO/JIS/AISI mold parts standards

Typical size standardization rate reaches more than 80%

Technical advantages: shorten delivery time, easy replacement, convenient maintenance, and reduce maintenance costs.

III. Typical application scenarios

1. Auto parts manufacturing

Stamping die parts are widely used in automobile covers, frames, reinforcements and other parts;

Requires high mold service life, high forming accuracy, and high fatigue resistance;

For example, the life design of the door outer panel mold punch can reach more than 1,000,000 times.

2. Home appliances and 3C industry

Stamping technology is widely used in home appliances (refrigerator liner, washing machine shell) and 3C products (mobile phones, notebook metal shells);

High-precision punches and concave dies can achieve extremely small curvature bending to meet the needs of complex appearance parts.

3. Electrical hardware and connector manufacturing

Precision stamping die parts are used to produce springs, pins, grounding plates, terminals, etc.

High precision and high batch production efficiency are required, and die parts must withstand high-frequency stamping, some of which can reach 600 times/minute.