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Laser assisted casting and related system

A laser system, laser technology, applied in casting and molding equipment, molds, mold components, etc., can solve problems such as expensive and feature conflicts extending in different directions

Inactive Publication Date: 2015-05-20
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This may be faster than rebuilding after the wax mold has been formed, but can be expensive as the entire wax molding tool needs to be reshaped
Also, retrofitting the original wax molding tool can lead to conflicts between features e.g. features extending in different directions
Subwax models and pooling of wax models can also be used, but these methods will create seams that need to be corrected after the fact

Method used

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  • Laser assisted casting and related system
  • Laser assisted casting and related system
  • Laser assisted casting and related system

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Embodiment Construction

[0014] As mentioned above, the invention disclosed in this specification relates to material processing. Specifically, the present invention relates to casting shapes in materials.

[0015] As described in this specification, certain shapes in parts can be difficult and / or costly to form because the waxy base material used to form these shapes is not always easy to manipulate. In some cases, a "base" (or, generally) wax base material is formed first, and then other features are added to the wax model by machining the wax base material to form a form that will be coated and subsequently Shape the features of this part. This process can be expensive, time consuming and complex.

[0016] Specifically, conventional turbine part casting involves constructing a wax molding tool that includes the shape of the wax model to be cast. After the wax molding tool is constructed, wax is poured into the tool to create the wax model. The wax model is then coated (eg, in a coating slurry w...

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PUM

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Abstract

Various embodiments include methods and related systems for laser-assisted casting. Some embodiments include a method including: performing P2 laser ablation to a preliminary wax casting model 6 to form a modified wax model 8 including at least one additional feature 10 absent from the wax casting substrate; coating P5 the modified wax model 8 to form a mold shape around the modified wax model 8; and removing P6 the modified wax model 8 to leave a casting mold 24 including the at least one additional feature 10.

Description

technical field [0001] The invention disclosed in this specification relates to a material processing. Specifically, the present invention relates to casting shapes in materials. Background technique [0002] A traditional method of casting parts, such as metal parts used in machines such as turbines and / or electric machines, is to form a mold of a shape and then pour or otherwise deposit a liquefied material (eg, metal) into the mold. The liquefied material is then cooled to form solidified portions in the shape of openings in the mold. The traditional method of forming a mold is to construct a waxy shape; coat the waxy shape, eg, with one or more ceramic layers; and remove the wax, leaving the outline of the shape as a mold for casting the liquefied material. [0003] Certain shapes in a part can be difficult and / or costly to form because the waxy base material used to form these shapes is not always easy to manipulate. In some cases, a "base" (or, generally) wax base m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04
CPCB22C7/02B22C9/04B22C9/00
Inventor 胡兆力
Owner GENERAL ELECTRIC CO