直接金属铸造工艺在低成本快速模具上的应用

Applications of Direct Metal Casting Process on Low-cost Rapid Tooling

直接金属铸造粉末作为直接金属铸造技术的原材料,受到了专利技术保护,导致其销售价格昂贵,大大增加了该技术的生产成本。本文通过实验确定了低成本直接金属铸造粉末的配制方法,按质量比6∶4将74μm的Al2O3粉和37μm的石膏粉ZP102混合。采用自配制的直接金属铸造粉末,成功打印出了齿轮及弯管快速成型模具,并铸造出了合格的齿轮和弯管铸件,大大降低了直接金属铸造技术用打印原材料的成本。

Aimed at the problems of direct metal casting powder with expensive sale price and high production cost because its raw material production technology was protected by patent, a low-cost preparation method of direct metal casting powder with the mass ratio of 6：4 by mixing 74 μm A1203 powder and 37μm gypsum powder ZP102 was identified. And the fast molds of gear and elbow were successfully printed using the low-cost direct metal casting powder, then qualified castings of gear and bends were produced, so as to greatly reduce the cost of print materials in direct metal, casting technique.