Device for inhibiting laser welding deformation

A technology of laser welding and laser welding head, which is applied in the field of devices for suppressing laser welding deformation. It can solve the problems that are not easy to control and cannot effectively improve the deformation effect of thin plate samples, and achieve the effect of controlling welding deformation.

Inactive Publication Date: 2021-03-30
HUNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the scheme of "spraying atomized cooling water" is often not easy to control in act...

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  • Device for inhibiting laser welding deformation
  • Device for inhibiting laser welding deformation
  • Device for inhibiting laser welding deformation

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Embodiment Construction

[0035] like Figure 1~5 As shown, the present invention provides a kind of device that suppresses laser welding deformation, and described device comprises welding laser welding head (1), is used for clamping the sample holder (3) of sample to be welded, is used for laser welding A heat sink structure (8) for cooling at the weld seam and an ultrasonic vibration structure (9) for contacting the surface of the sample to be welded, the heat sink structure (8) is a vortex tube for gas refrigeration, and the heat sink The structure (8) comprises a cold air outlet port (81), a hot air outlet port (82), an air inlet port (83) and a fixed end (84), and the cold air outlet port (81) is used for directly or indirectly disabling the air produced by the vortex tube. The cold wind is blown to the weld seam of the sample, and the ultrasonic vibration structure (9) includes a tool head (93), a horn (92) and a transducer (91) sequentially from the head to the tail, and the tool head ( 93) an...

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Abstract

The invention provides a device for inhibiting laser welding deformation. The device comprises a laser welding head for welding, a sample clamp for clamping a sample to be welded, a heat sink structure for cooling a laser welding seam, and an ultrasonic vibration structure for contacting with the surface of the sample to be welded; the heat sink structure is a vortex tube for gas refrigeration andcomprises a cold air outlet end, a hot air outlet end, an air inlet end and a fixed end; the cold air outlet end is used for directly or indirectly blowing cold air generated by the vortex tube to the welding seam of the sample; the ultrasonic vibration structure sequentially comprises a tool head, an amplitude-change pole, and an energy converter from head to tail; the tool head and the amplitude-change pole are both made of titanium alloy materials; and the energy converter sequentially comprises a front cover plate made of aluminum alloy materials, a plurality of pieces of piezoelectric ceramics and a rear cover plate made of steel in the direction from the head to the tail of the ultrasonic vibration structure. The provided device for inhibiting laser welding deformation can effectively inhibit the deformation of the laser welding sample.

Description

technical field [0001] The invention belongs to the field of laser welding, and in particular relates to a device for suppressing laser welding deformation. Background technique [0002] Laser welding technology is widely used in industrial manufacturing for the connection of specimens. After conventional laser welding and sample cooling, thin-plate specimens will generate residual stress. After the clamp is released, the residual stress is redistributed. Under stress, the sample deforms, which seriously affects the quality of the weldment. [0003] Patent application CN200510105424.5 relates to a laser welding method and device using medium cooling for controlling welding stress and deformation in the manufacture of welded structures. After the laser welding head, there is a heat sink that moves synchronously. The heat sink is composed of a cooling medium pipe, a high-pressure air intake pipe, and an exhaust pipe. The cooling medium pipe at the outlet of the heat sink n...

Claims

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Application Information

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IPC IPC(8): B23K26/02B23K26/21B23K26/346B23K26/70
CPCB23K26/02B23K26/21B23K26/346B23K26/702
Inventor 金湘中刘祖国李俊豪张隽漪郝中甲于晓飞陈挥杨
Owner HUNAN UNIV
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