Manhart How to choose suitable materials for punching and shearing machines?

When selecting suitable materials for punching and shearing machines, multiple factors should be comprehensively considered to ensure that the selected materials can meet production needs, improve cutting efficiency and equipment life. Here are some key points and suggestions:
1. Material characteristics:
-High speed steel (HSS): It has good wear resistance and toughness, and is suitable for cutting stainless steel and other steel materials. Low cost, long service life, but low hardness, may cause rapid wear in high-speed cutting.
-Alloy steel: has higher hardness, fatigue resistance, and corrosion resistance. Suitable for cutting machine blades with high manufacturing difficulty and requirements.
-Industrial tungsten steel (hard alloy): With high hardness, wear and corrosion resistance, and high temperature strength, it is the preferred material for manufacturing high standard machined parts. Suitable for cutting hard materials such as galvanized steel plates.
-Hard alloy coating: processed on the basis of hard alloy, which improves hardness and wear resistance, while reducing defects that are prone to breakage. But the production technology is complex, the cost is high, and the coating will gradually wear out.
2. Usage scenario:
-Consider the type, hardness, wear resistance, etc. of cutting materials to select the appropriate blade material. For example, for hard materials, it is recommended to use industrial tungsten steel or hard alloy coated blades.
-Consider factors such as temperature, pressure, and cutting force in the cutting environment. For high-temperature and high-pressure cutting environments, it is recommended to choose materials with good thermal stability and strong wear resistance, such as H13.
3. Production cost:
-Different materials have different costs, and suitable materials should be selected based on actual production needs and budget. For example, for large-scale production and cost sensitive situations, high-speed steel with lower cost but acceptable performance can be chosen.
4. Other material options:
-9CrSi: With excellent toughness and wear resistance, it is suitable for making small and medium-sized molds.
-Cr12MoV: High hardness and good wear resistance, commonly used in the production of molds that need to withstand high temperatures and high wear.
-SKD11: High hardness and good wear resistance, commonly used in manufacturing high-precision molds, but less commonly used in multifunctional punching and shearing machines.
5. Norms and standards:
-Ensure that the selected materials comply with relevant national and industry regulations and standards to ensure stable product quality and performance.
In summary, when selecting suitable materials for punching and shearing machines, factors such as material characteristics, usage scenarios, production costs, and regulatory standards should be comprehensively considered. By selecting appropriate materials, cutting efficiency can be improved, equipment life can be extended, and production needs can be met.