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The key to achieving 3D printing in die-casting molds lies in materials

2024-04-16 18:03

3D printing technology can manufacture mold parts with complex shapes and internal structures by stacking powder materials layer by layer, breaking through the limitations of traditional processing methods. This increase in design freedom makes mold manufacturing more precise and efficient, such as the application of 3D printing with shaped waterways and shaped breathable steel, meeting the modern manufacturing industry's demand for high-precision and high-quality molds.

 

At present, the application of 3D printing technology in injection molds is relatively mature, but progress in fields such as die-casting molds is relatively slow. The main reason is that there are not many suitable steel materials for 3D printing hot work molds.

Hot work mold steel refers to alloy tool steel suitable for making molds for hot deformation processing of metals, such as hot forging molds, hot extrusion molds, die-casting molds, hot heading molds, etc. These molds need to work for long periods of time under high temperature and pressure conditions, therefore requiring the mold material to have high strength, hardness, and thermal stability, especially high thermal strength, thermal fatigue, toughness, and wear resistance.

In addition, hot work mold steel should also have high hardenability to ensure uniform mechanical properties of the entire mold section. Meanwhile, good thermal conductivity is also one of its important performance requirements. Therefore, when selecting hot work mold steel, it is necessary to consider various performance requirements comprehensively based on specific working conditions and requirements to ensure the stability and reliability of the mold.

In response to the shortage of 3D printing hot work mold steel materials, Shanghai Yisu Research and Development has launched ESU-EM213 hot work mold steel powder. This material has good performance in printing performance, toughness, thermal stability, thermal fatigue, thermal conductivity, and other aspects, with an impact toughness (ISO V) of up to 35. Currently, it has been successfully applied in multiple fields such as automotive manufacturing, aerospace, shipbuilding, and electrical appliances, greatly promoting the adoption of 3D printing in related industries.