Runner cavity splashing-free high-power laser penetration welding method and device
A high-power, laser melting technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of poor stability of welding process and increase of welding spatter, so as to ensure stability, prevent large spatter, reduce The effect of welding spatter
Active Publication Date: 2017-08-18
HANS LASER TECH IND GRP CO LTD
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Problems solved by technology
[0003] Under the condition of high-power laser welding, with the increase of plate thickness and laser power, the stability of the welding process will become poor, and the welding spatter on the front and back of the weld will also increase.
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[0026] Now in conjunction with the accompanying drawings, the preferred embodiments of the present invention will be described in detail.
[0027] see figure 1 and figure 2 , figure 1 It is a structural representation of the workpiece involved in the present invention. figure 2 It is a structural representation of the device of the present invention and the workpiece. The workpiece 110 involved in the present invention includes: a workpiece lower plate 111 and a workpiece upper plate 112 . Wherein, the workpiece lower plate 111 is hollow inside and has a flow channel cavity 113 formed therein. The workpiece lower plate 111 is also provided with a flow channel inlet 114 and a flow channel outlet 115 communicating with the flow channel cavity 113 . It can be understood that the workpiece upper plate 112 is a cover plate matched with the workpiece lower plate 111 , and the two can be welded together to form a flow channel cavity type component.
[0028] The device of the ...
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The invention provides a runner cavity splashing-free high-power laser penetration welding method and device. The method comprises the steps that a welding connector is cleaned, and an anti-splashing agent is sprayed to the inner wall of a workpiece; the workpiece is assembled, a tool clamp is adjusted, it is ensured that the position of the welding connector is closely attached, and the size of a misalignment side at the position of the connector is strictly controlled; a laser welding head is moved to the position above the to-be-welded workpiece by a preset height, and a laser beam is aligned with the workpiece welding connector; a protection gas hood is arranged on the laser welding head, and the protection gas hood, the laser beam and the welding connector are adjusted to the preset relative position; the protection gas hood is opened, and the laser welding head is moved to conduct laser spot welding fixing on the welding connector; and a workpiece cavity is inflated with inertia welding protection gas, laser welding parameters are adjusted to the preset value, and high-power laser continuous welding is conducted. Welding flashing can be effectively controlled, and it is ensured that a runner cavity is free of splashing.
Description
technical field [0001] The invention relates to a laser processing method, in particular to a laser welding method for a flow channel cavity. Background technique [0002] Due to the advantages of fast speed, large welding depth and small deformation, laser welding is widely used in various industries, especially for some precision components and products requiring high-quality welding. Runner cavity parts are widely used in the energy industry, especially for the nuclear power industry, the welding thickness of the flow channel cavity parts is large, and the post-weld deformation is required to be small, and the surface after welding inside the cavity is extremely demanding: must Ensure that after welding, there are no welding spatter particles attached to the inner wall of the cavity to adapt to its harsh application environment and ensure high safety. [0003] Under the condition of high-power laser welding, as the plate thickness and laser power increase, the stability ...
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Login to View More IPC IPC(8): B23K26/21B23K26/12B23K26/08
CPCB23K26/08B23K26/123B23K26/21
Inventor 邓时累王慧毛大英刘斌唐景龙陈根余陈燚高云峰
Owner HANS LASER TECH IND GRP CO LTD