A method for rapid removal of metal supports during laser selective melting

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The rapid removal method of metal support with a laser selection melt forming, including annealing heat treatment, wire cutting, welding rod arc welding and grinding, solves the problems of low support removal efficiency and high cost in traditional mechanical processing, and achieves efficient and low-cost support removal effect.

CN116000318BActive Publication Date: 2025-04-04XIAN SPACE ENGINE CO LTD

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Patent Information

Application Number: CN202211706535.1
Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner
Filing Date: 2022-12-29
Publication Date: 2025-04-04
Estimated Expiration: 2042-12-29

Application Information

Patent Timeline

29 Dec 2022

Application

CN202211706535.1

04 Apr 2025

Publication

CN116000318B

IPC: B22F10/64; B22F10/66; B33Y40/20

CPC: Y02P10/25

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Application Domain

Additive manufacturing apparatus Increasing energy efficiency

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AI Technical Summary

Technical Problem

Traditional mechanical processing has the risk of tool breaking and deformation during hollow support processing, low processing efficiency and high cost, making it difficult to quickly remove metal support.

Method used

The laser selection melt-forming metal support is used to quickly remove the metal support, including annealing heat treatment, wire cutting separation substrate and forming parts, welding rod arc welding melting support, grinding and removing residual support and sand blowing treatment.

Benefits of technology

It has achieved a significant improvement in support removal efficiency, reduced processing costs, avoided the risk of tool breakage and deformation, and is suitable for various support types, significantly improving processing efficiency.

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Abstract

The present invention discloses a method for quickly removing metal supports formed by laser selective melting, and belongs to the technical field of metal laser selective melting forming. The support removal method comprises: performing annealing heat treatment on the formed part formed by laser selective melting in a substrate state; then performing wire cutting to separate the substrate and the formed part; placing the formed part appropriately so that the bottom of the support to be removed is suspended in the air, using arc welding to melt the support, and removing the support of the formed part under the action of arc force and gravity; grinding to remove the remaining support of the formed part; and finally performing sand blasting on the formed part. When processing hollow supports in traditional mechanical processing, there is a risk of tool breakage and deformation due to intermittent processing. This method is not affected by the type of support, and the processing efficiency is significantly improved.

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