HPM75 steel is a high-strength alloy tool steel with excellent wear resistance and machinability. It is refined for high uniformity, minimizing deformation during machining and heat treatment. HPM75 offers good polishability, stable hardness, and corrosion resistance, making it suitable for plastic molds, precision components, and mechanical applications requiring durability and high accuracy.
Characteristics and Features:
Non-magnetic: Very low magnetic permeability, stable in various states.
High Hardness: Can achieve high hardness after heat treatment (typically in pre-hardened state around 42-45 HRC, and can increase after surface treatment).
Good Wear Resistance: Extends mold life.
Good Corrosion Resistance: Suitable for applications requiring rust prevention.
Easy EDM Machining: Good electrical discharge properties, beautiful surface after EDM, low increase in surface hardness.
Good Dimensional Stability After Heat Treatment.
Good Weldability.
Good Toughness, less prone to cracking.
Corresponding CNC Technologies:
CNC Milling: Very suitable for machining complex mold shapes, parts requiring high precision, and good surface finish. Due to its high hardness, appropriate cutting tools and optimal cutting conditions are necessary.
CNC Drilling: Precise drilling of holes is possible.
CNC Turning: Suitable for machining parts with rotational symmetry.
Electrical Discharge Machining (EDM): Particularly suitable due to HPM75's good EDM characteristics, helping to create complex shapes that are difficult to achieve with traditional cutting methods.
Applications:
HPM75 steel is commonly used to manufacture:
Conclusion: Due to its non-magnetic properties, high hardness, and wear resistance, HPM75 is a good choice for specialized mold applications in CNC machining. However, it's important to note that it can be more difficult to machine compared to softer steels, requiring appropriate cutting tools and machining techniques.
