铸造--支持金属零件(模具)快速制造的关键使能技术

金属零件(模具)的快速制造分为直接法和间接法.由于直接快速制件在力学性能、尺寸精度等方面还存在不足,基于快速原型间接制造金属零件(模具)就成为目前切实可行的主要方法,其中,铸造技术由于具有成形、快速、成本低、性能好的特点,成为支持金属零件或模具快速制造的关键使能技术.实践和研究表明,铸造与快速成形技术的结合是成功的.给出了基于铸造技术实现金属零件快速制造的工艺路线.

Casting-the Key Enabling Technology Promoting Rapid Manufacturing of Metallic Parts or Moulds

Rapid manufacturing of metallic parts or moulds,which include the direct and the indirect methods, is attracting manufacturer`s attention in the Rapid Prototyping (RP) field. Due to the fact that the rapid parts directly produced could not often meet the requirements of mechanical properties and dimensional accuracy, the indirect methods have been shown to be available for producing the metallic productions with better quality. Because of the characteristic of unrestricted forming, high speed, low cost and high quality, the casting process has been become the key enabling technology promoting rapid manufacturing of metallic parts or moulds. It indicates that combining RP and casting process is successful in practice and research field. Finally, the rapid manufacturing technological steps based on casting process have been summarized.