8.
    发明专利
    未知

    公开(公告)号:DE602005019826D1

    公开(公告)日:2010-04-22

    申请号:DE602005019826

    申请日:2005-10-27

    Abstract: An investment casting pattern is formed by forming a metallic first core element (50) including at least one recess (34). The first core element (50) is engaged to at least a mating one of an element (60) of a die and a second core element. The recess (34) serves to retain the first core element (50) relative to the mating one. The die is assembled and a sacrificial material is introduced to the die to at least partially embed the first core element. The recess (34) may be pre-formed prior to cutting the first core element (50) from a larger sheet of material.

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