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Hard Metal vs.High-Speed Steel:Which Is Better for Punch Materials?
In the"world"of mold punches,hard metal and high-speed steel are two major"schools,"each with its own advantages.So,which one is more suitable for punches?Let's find out!
Hard Metal:The"Tough Guy"of Punches
• Unmatched Hardness:With a hardness of HRC75-80,hard metal is extremely wear-resistant.Its cutting speed is 4-7 times that of high-speed steel,making it ideal for hard materials.
• Impressive Heat Resistance:It has excellent red hardness,maintaining stability at temperatures of 800-1000 degrees.
• Brittleness is a Weakness:It has low bending strength and impact toughness,making it prone to breakage and less able to withstand impacts and vibrations.
High-Speed Steel:The"All-Rounder"of Punches
• Superior Toughness:High-speed steel is known for its toughness,maintaining stable cutting performance during high-speed machining and reducing punch damage and breakage.
• Cost-Effective:It is reasonably priced and suitable for most stamping processes,offering great value for money.
• Slightly Lower Hardness:With a hardness of HRC63-67,it is wear-resistant but may have a shorter lifespan when stamping hard materials.
Selection Recommendations
• Hard Material Stamping:For hard materials like stainless steel,hard metal punches are the"tough guy"choice,ensuring stamping quality and mold life.
• General Stamping Needs:For general materials like steel and aluminum,high-speed steel punches are a more economical option.
In conclusion,both hard metal and high-speed steel have their advantages.So,choose wisely based on your specific needs!
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