Method of Vacuum Electron Beam Welding of Chromium Bronze Butt Joints of Annular Workpieces with Sandwich Structure

A vacuum electron beam, butt joint technology, applied in electron beam welding equipment, welding equipment, welding equipment and other directions, can solve the problems of reducing production efficiency, reducing the bearing capacity of the welding seam, increasing the production cost, etc., to improve the effective thickness and The effect of bearing capacity, reducing the number of rework and welding, and reducing production costs
CN111037082BActive Publication Date: 2021-10-15XIAN SPACE ENGINE CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN SPACE ENGINE CO LTD
Publication Date
2021-10-15

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Abstract

The vacuum electron beam welding method for the chromium bronze butt joint of the sandwich structure circular workpiece is to use the first clamping tool to clamp the workpiece, so that the copper backing plate is closely attached to the back of the weld seam of the workpiece, and after the electron beam segmental positioning welding, the workpiece and The first clamping tool is disassembled, and the copper backing plate on the back of the weld is corrected so that the back of the weld and the copper backing plate are closely attached. Use the second clamping tool to clamp the workpiece for formal welding. The second clamping tool allows the chrome bronze butt weld and copper backing plate of the workpiece to be welded through. After welding, the copper backing plate on the back of the workpiece weld is removed by manual grinding. . The invention solves the easy-to-produce depression on the back of the chrome bronze electron beam weld, and at the same time significantly reduces the probability of air holes inside the chrome bronze electron beam weld, so that the first pass rate of the X-ray inspection of the workpiece is significantly improved, and the number of rework welding of the workpiece is reduced , reducing production costs.
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Description

Technical field

[0001] The present invention relates to a method of chromium bronze vacuum electron beam welding, and more particularly to a method of laminated a vacuum electron beam welding of a sandwich joint vacuum electron beam welding, belonging to the field of machining. Background technique

[0002] The back surface of the weld joint of the annular workpiece chrome bronze docking joint is easily depressed, so that the weld portion has an effective wall thickness and reduces the load capacity of the weld site. At the same time, chrome bronze electron beam weld X-ray examination is easy to generate pores, which is easy to exceed electron beam welding standards, resulting in the need for electron beam renovation, in order to ensure that the internal quality of the weld is qualified. Repair welding reduces production efficiency and improves production costs. Inventive content

[0003] The technical solution of the present invention is to overcome the shortcomings of the prio...

Claims

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