Wire and arc additive and laser shock peening composited manufacturing device and method

A technology of laser shock strengthening and additive manufacturing, which is applied in the direction of manufacturing tools, additive processing, laser welding equipment, etc. It can solve the problems affecting the mechanical properties of additive components and the residual tensile stress of materials, so as to improve the microstructure and mechanical properties , Eliminate cooling shrinkage, reasonable design effect

Active Publication Date: 2020-08-18
BEIHANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still many problems in the existing arc additive manufacturing technology. For example, due to the temperature gradient and excessive cooling rate in the WAAM process, irregular columnar grain structures are easily formed, and residual tensile stress is generated inside the material, which affects the quality of additive components. mechanical properties

Method used

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  • Wire and arc additive and laser shock peening composited manufacturing device and method
  • Wire and arc additive and laser shock peening composited manufacturing device and method
  • Wire and arc additive and laser shock peening composited manufacturing device and method

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Embodiment 1

[0045] The compound manufacturing device of arc additive material and laser shock strengthening provided by the present invention includes: clamping device, arc additive manufacturing device, laser shock strengthening device, milling device, constrained layer laying device, temperature control system and control system; wherein, The control system is respectively connected to the arc additive manufacturing device, laser shock strengthening device, milling device, constrained layer laying device and temperature control system;

[0046]Among them, the clamping device is composed of a workbench 7, an insulating gasket and a clamp, and the arc additive manufacturing device is composed of a welding torch 16, a wire feeding mechanism 18, a contact tip 17, a welding power supply 20 and a welding wire heating power supply 19. By controlling the movement of the welding torch 16, the Metal is deposited to form additive components. The laser shock peening device is composed of a laser em...

Embodiment 2

[0057] The embodiment of the present invention also provides a composite manufacturing method of arc additive manufacturing and laser shock strengthening, which can realize arc additive manufacturing and laser shock strengthening at the same time, so as to achieve efficient and rapid improvement of the internal microstructure of additive components, and improve the quality of additive components. The purpose of comprehensive mechanical properties.

[0058] refer to figure 2 shown, including the following steps:

[0059] S10, fixing the metal component to be additively manufactured on the substrate, and setting the process parameters of the arc additive manufacturing device and the laser shock peening device according to the size and performance requirements of the metal component;

[0060] S20, controlling laser shock peening of formed parts while arc additive manufacturing is in progress;

[0061] S30, after each layer of arc deposition, the temperature control system obta...

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Abstract

The invention discloses a wire and arc additive and laser shock peening composited manufacturing device and method. The wire and arc additive and laser shock peening composited manufacturing device comprises a clamping device, a wire and arc additive manufacturing device, a laser shock peening device, a milling device, a constraint layer laying device, a temperature control system and a control system; and the control system is respectively and controllably connected with the wire and arc additive manufacturing device, the laser shock peening device, the milling device, the constraint layer laying device and the temperature control system. According to the wire and arc additive and laser shock peening composited manufacturing device and method, the wire and arc additive manufacturing device and the laser shock peening device are combined, so that reasonable structure design, simple operation and high applicability are achieved; and the uneven residual tensile stress caused by an even temperature field and a cooling contraction effect after forming in the manufacturing process of a wire and arc additive can be effectively eliminated, thick columnar crystal structures of components of the additive can be refined, and the microstructure and the mechanical property of the manufactured components of the additive can be further effectively improved.

Description

technical field [0001] The invention relates to the technical fields of additive manufacturing and laser shock strengthening, in particular to a composite manufacturing device and method of arc additive manufacturing and laser shock strengthening. Background technique [0002] In recent years, Wire and arc additive manufacturing (WAAM) is a method that uses arcs as heat sources to melt metal wires, and adopts the principle of layer-by-layer cladding under program control. Advanced digital manufacturing technology that gradually takes shape. WAAM has a short manufacturing cycle, high automation level, low technical cost, high production efficiency, less restrictions on the size of parts, simple and easy-to-operate equipment, and can realize digital, intelligent and flexible manufacturing. In addition, WAAM formed parts are composed of all-welded metal, with high density and good mechanical properties, and will become the main development direction of the equipment manufactur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/348B23K26/356B23K26/70B33Y10/00B33Y30/00
CPCB33Y10/00B33Y30/00B23K26/348B23K26/356B23K26/702
Inventor 郭伟李钢郭超李博车志刚李卫东孙汝剑
Owner BEIHANG UNIV
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