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Multi-piece integrated core-shell structure with standoff and/or bumper for making cast component

A buffer, casting mold technology, used in manufacturing tools, additive manufacturing, casting and molding equipment, etc., can solve problems such as print resolution performance limitations

Active Publication Date: 2019-07-30
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ceramic core shell molds according to the '151 patent are limited by the print resolution performance of these processes

Method used

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  • Multi-piece integrated core-shell structure with standoff and/or bumper for making cast component
  • Multi-piece integrated core-shell structure with standoff and/or bumper for making cast component
  • Multi-piece integrated core-shell structure with standoff and/or bumper for making cast component

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Embodiment Construction

[0029] The detailed description set forth below, along with the accompanying figures, is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of various concepts. It will be apparent, however, to those skilled in the art that these concepts may be practiced without these specific details. For example, the present invention provides a preferred method of making cast metal parts, preferably those used in making jet aircraft engines. In particular, single crystal, nickel-based superalloy cast parts, such as turbine blades, vanes and shroud components, can be advantageously produced according to the present invention. However, other cast metal parts can be made using the techniques of the present invention and integral ceramic molds.

[0030] The present inventors ...

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Abstract

The present disclosure generally relates to partial integrated core-shell investment casting molds that can be assembled into complete molds. Each section of the partial mold may contain both a portion of a core and portion of a shell. Each section can then be assembled into a mold for casting of a metal part. The partial integrated core-shell investment casting molds and the complete molds may beprovided with filament structures corresponding to cooling hole patterns on the surface of the turbine as or stator vane, which provide a leaching pathway for the core portion after metal casting. The invention also relates to core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold.

Description

technical field [0001] The present disclosure generally relates to staged investment casting core shell mold components and processes for utilizing these components. The core-shell mold may be a two-piece core-shell mold assembled from partial molds comprising a first core and shell parts. A two-piece core-shell mold is assembled by attaching a first core and shell part to at least a second core and shell part of a second partial mold. At least one of these shell or core sections is provided with a foot aspect to provide the required spacing between the core and shell. Core-shell molds made in accordance with the present invention may also include integral ceramic filaments between the core and shell of the mold that may be utilized to form pores, i.e., through-holes, in cast parts made from the two-piece molds. cooling hole. The use of sufficient ceramic filaments between the core and shell to locate and provide a leach path for the core serpentine also makes it possible t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22C9/10B22C9/22
CPCB28B7/342B28B7/346B22D29/002B28B1/001B33Y10/00B33Y80/00B22C9/02B22C9/103B22C21/14B22C9/10B22C13/08B22C13/12B22D29/00B29C64/124B22C9/04B22C9/22B22C7/02B29L2031/757B29C64/135Y02P10/25
Inventor 詹姆斯·赫伯特·戴恩斯布莱恩·大卫·普热斯劳斯基迈克尔·约翰·麦克卡伦杨西布莱恩·帕特里克·皮特森
Owner GENERAL ELECTRIC CO