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Fusion welding and laser shock strengthening composite manufacturing device and method

A technology of laser shock strengthening and manufacturing equipment, which is applied in manufacturing tools, welding equipment, arc welding equipment, etc., can solve the problems of difficulty in guaranteeing the quality of fusion welding seams, high labor intensity of welders, and low production efficiency, so as to alleviate the overall performance. The effect of lowering, lower working environment requirements, and improved production efficiency

Pending Publication Date: 2021-07-16
BEIHANG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its shortcomings are: (1) strong dependence, and the quality of fusion welding seams is difficult to guarantee; (2) welders have high labor intensity and poor working conditions; (3) low production efficiency

Method used

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  • Fusion welding and laser shock strengthening composite manufacturing device and method
  • Fusion welding and laser shock strengthening composite manufacturing device and method
  • Fusion welding and laser shock strengthening composite manufacturing device and method

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Embodiment

[0079] In this embodiment, austenitic stainless steel 316L and Incoloy825 nickel-based superalloy dissimilar plates are used as materials, and TC17 titanium alloy welding wire with a diameter of 1.6 mm is used as the welding wire. The size of the plate is the same as 120mm*150mm*100mm. After fixing, the sample is mechanically polished and cleaned with acetone. After the preparation work is completed, the specific implementation steps are as follows:

[0080] 1) Turn on the power supply of the overall device and the computer control system 17, detect the connection and operation of each device to ensure normal operation, and set the arc welding manufacturing process parameters and laser shock strengthening process parameters;

[0081] 2) The welding process is realized through the arc welding manufacturing device, wherein the main process parameters of the arc welding are: the welding acceleration voltage is 60V, the welding current is 500A, and the welding speed is 200mm / min; ...

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Abstract

The invention discloses a fusion welding and laser shock peening composite manufacturing device and method. The device comprises a device workbench, an electric arc welding manufacturing device, a laser shock peening device, a transmission mechanism and a computer control system, the electric arc welding manufacturing device comprises a welding table, a welding gun, an arc welding power source, a wire feeding mechanism, a contact tube and a welding wire heating power source; the laser shock peening device comprises a laser emitting device, a reflective mirror and a focusing lens; the transmission mechanism drives a weldment on the welding table to perform fusion welding and laser shock strengthening; and the computer control system is electrically connected with the electric arc welding manufacturing device, the laser shock peening device and the transmission mechanism. According to the method, fusion welding manufacturing and laser shock strengthening are combined, the weldment with good performance can be efficiently and rapidly produced, the problem that the fatigue performance is reduced due to residual tensile stress in a welding area of a traditional weldment is effectively solved, the influence of weld defects on product performance is restrained, and the method is suitable for preparing the weldment with high reliability.

Description

technical field [0001] The invention relates to the fields of welding and laser shock strengthening, and more specifically relates to a device and method for composite manufacturing of fusion welding and laser shock strengthening. Background technique [0002] The so-called fusion welding refers to the process of welding, under the action of high temperature, etc., the welded joint is brought to a molten state. Since the workpieces to be welded are closely attached together, under the action of temperature field, gravity, etc., without pressure, the molten liquid of the two workpieces will mix. After the temperature is lowered, the molten part condenses, and the two workpieces are firmly welded together to complete the welding method. It includes TIG, MIG and composite welding, etc. Its advantages are: (1) simple equipment, cheap price, and convenient maintenance; (2) no auxiliary gas protection is required; (3) flexible operation and strong adaptability; (4) application ra...

Claims

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Application Information

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IPC IPC(8): B23K9/04B23K9/09B23K9/133C21D10/00
CPCB23K9/04B23K9/09B23K9/133C21D10/005
Inventor 郭伟王优朱颖张宏强
Owner BEIHANG UNIV
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