Investment casting cores and methods

Details Investment casting cores and methods Investment casting cores and methods

2006-11-14

2006-11-14

Lin, Kuang Y. (Department: 1725)

Metal founding

Process

Shaping a forming surface

C164S516000, C164S519000

Reexamination Certificate

active

07134475

ABSTRACT:
An investment casting pattern is formed by forming a metallic first core element including at least one recess. The first core element is engaged to at least a mating one of an element of the die and a second core element. The recess serves to retain the first core element 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 may be pre-formed prior to cutting the first core element from a larger sheet of material.

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