Press Mold [Precision Mold Design and Parts Processing Case Study] Improvement of Carbide Punch Lifespan

The lifespan of punches has tripled thanks to milling technology for hard materials! Here’s a case study for a precision electronic components manufacturer.
When processing hard materials with electrical discharge machining, micro-cracks caused by heat during machining occur. These cracks penetrate to a depth of about 20μm, and no matter how much you polish to achieve a smooth surface, they remain.
These cracks can lead to wear in punches that are subjected to high loads.
In contrast, milling does not produce any micro-cracks at all. Milling tools can go down to R0.1, providing a high degree of flexibility in machining shapes.
[Case Overview]
- Customer Industry: Precision electronic components manufacturer
- Inquiry: Wanted to improve the lifespan of hard material riveting punches
- Proposed Solution: Transition from electrical discharge machining to milling
- Technology Used: Milling technology for hard materials
- Results: The lifespan of the punches has tripled
*For more details, please refer to the PDF document or feel free to contact us.*

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