Seal welding device and process for improving yield of thermally induced holes of powder superalloy

Through the process of hydraulic flattening, laser welding and argon arc welding protective sleeve, the problems of low-thermal induced hole yield and poor welding stability during the welding process of powder high-temperature alloy parts are solved, and efficient sealing effect and material performance are achieved promote.

CN119187886AActive Publication Date: 2024-12-27AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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Patent Information

Application Number
CN202411473364.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-22
Publication Date
2024-12-27
Estimated Expiration
2044-10-22

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Abstract

The invention relates to a seal welding device and process for improving the yield of thermally induced holes of a powder high-temperature alloy, belongs to the technical field of powder high-temperature alloys, and solves the problem that the yield of the thermally induced holes of the existing powder high-temperature alloy is not high. The sealing and welding process comprises the steps of hydraulic pipe pressing, laser welding, secondary pipe pressing and welding, protective sleeve welding and the like. According to the process, the process of combining hydraulic flattening, laser welding and protective sleeve welding is adopted, the existing process of combining induction heating and air pressure flattening is replaced, the seal welding quality of the powder discharging pipe is guaranteed, the yield is increased to 100% from 95%, and the thermal induction porosity is 0.3% or below.
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Citation Information

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