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Application of vacuum electron beam welding to tantalum alloy welding

A vacuum electron beam, tantalum alloy technology, applied in electron beam welding equipment, welding equipment, metal processing equipment and other directions, to achieve the effect of good forming, excellent mechanical properties, and promoting application and development

Pending Publication Date: 2019-06-07
SHENYANG FORTUNE PRECISION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional welding methods are difficult to obtain a more uniform weld quality with good fusion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The invention is further described in detail below.

[0009] An application of vacuum electron beam welding to tantalum alloy welding, using vacuum electron beam to weld tantalum, and realizing high-quality weld seam and forming of tantalum alloy under high vacuum conditions;

[0010] Set the electron beam acceleration voltage, beam current size and welding speed to increase heat input to meet the melting point of tantalum.

[0011] Set the focus position of the electron beam and the X, Y deflection amplitude of the scanning function, change the width of the weld, and adjust the cross-sectional shape of the weld bead by setting the type and frequency of the scanning function of the electron beam to optimize the root of the weld.

[0012] The penetration depth of the tantalum plate is 5mm, and the full penetration electron beam is welded.

[0013] Before welding, the gap between the groups is <0.05mm, and the board step difference is <0.10mm.

[0014] When welding, the...

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PUM

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Abstract

The invention relates to the field of vacuum electron beam welding in the equipment manufacturing industry. According to application of vacuum electron beam welding to tantalum alloy welding, tantalumis welded through a vacuum electron beam, and under the high vacuum condition, high-quality welding lines and forming of a tantalum alloy are achieved; the electron beam acceleration voltage, the beam current magnitude and the welding speed are set, the heat input is increased, and the tantalum melting point requirement is met. The electron beam focus point position and the X and Y deflection amplitude of a scanning function are set, and the welding line width is changed. Through setting of the electron beam scanning function type and scanning function frequency, the weld bead section shape is adjusted, and the root of the welding line is optimized. Welding of the tantalum alloy is finished, and a welding line good in forming and excellent in mechanical performance is obtained. The vacuumelectron beam welding can be widely applied to chemical engineering, electrons, electric, medical treatment, spaceflight and the like.

Description

technical field [0001] The invention relates to the field of electron beam welding in the equipment manufacturing industry, and is a welding technology combining the properties of tantalum alloy materials and electron beam welding parameters. Background technique [0002] Due to its high ductility, small thermal expansion coefficient, good toughness, and strong corrosion resistance, tantalum has a wide range of applications. Due to the high melting point of tantalum, which can reach 2995°C, second only to carbon, tungsten, rhenium, and osmium, it is difficult to weld and manufacture. It is difficult to obtain a more uniform weld quality with good fusion by traditional welding methods. Contents of the invention [0003] The purpose of the present invention is to increase the heat input by setting the electron beam acceleration voltage, the beam current size and the welding speed, and meet the requirements of the melting point of tantalum; by setting the electron beam focus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K15/06B23K15/00
Inventor 张维李文明张庆锋李生智谯永鹏
Owner SHENYANG FORTUNE PRECISION EQUIP CO LTD