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Laser welding method of high-strength gas discharge electrode

A gas discharge and laser welding technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of uneven discharge on the electrode surface, large contact surface of welding electrodes, unstable welding strength, etc., and achieve wear and deformation joints. Low, good welding consistency, stable laser energy effect

Active Publication Date: 2015-04-22
上海亚尔精密零件制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the influence of various factors, it is difficult to guarantee the quality of the welded product, and the consistency of the welding strength is very poor, and there are the following disadvantages:
[0003] (1) The contact surface of the welding electrode is large, and the position of the weldment cannot be guaranteed, resulting in very unstable welding strength
[0004] (2) The surface of the electrode is uneven due to discharge, and it needs to be ground frequently
Pollution occurs when electrodes are discarded
[0005] (3) After the subsequent hydrogen burning treatment, the solder joints will fall off
[0006] (4) When welding small-sized products, the extrusion of the upper and lower electrodes will cause the deformation of the product
[0007] (5) Changes in welding energy, resulting in brittle products
[0008] (6) The welding time of a single product is long
[0009] (7) The product is manually welded, and the quality of welding cannot be guaranteed by using simple fixtures

Method used

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Embodiment

[0030] A laser welding method for a high-intensity gas discharge electrode, the welding device used is such as figure 1 As shown, the device includes a laser generator 1 , a laser emitting head 2 , a mandrel blanking mechanism 3 , an electrode blanking mechanism 4 , a clamping fixture 5 , a blanking mechanism 6 , and a detection mechanism 7 .

[0031] After the mandrel 8 and the electrode spring 9 are assembled into the clamping jig 5 through the mandrel blanking mechanism 3 and the electrode blanking mechanism 4 respectively, the electrode spring 9 is clamped on the mandrel 8, and then the mandrel 8 and the The electrode spring 9 is placed at the laser generator 1. The laser generator 1 uses neodymium (Nd) as the excitation element, and uses yttrium aluminum garnet crystal rods (Nd:YAG) to generate 1-8KW continuous single-wavelength laser light. The flexible optical fiber is connected to the laser emitting head 2, and the electrode spring 9 is welded and fixed on the mandrel ...

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Abstract

The invention relates to a laser welding method of a high-strength gas discharge electrode. A mandril and an electrode spring enter a fixture through a blanking mechanism respectively and the electrode spring is clamped on the mandril, the mandril and the electrode spring are placed at a laser generator and are welded through laser, and the electrode spring is fixed on the mandril, so that the high-strength gas discharge electrode is obtained, and automatic blanking is performed after inspection. Compared with the prior art, the laser energy can be stably controlled, the product welding consistency is good, the quality is guaranteed, the product consistency is guaranteed to the greatest extent, and two articles are molten mutually after welding, so that the product strength after hydrogen burning is better.

Description

technical field [0001] The invention relates to a laser welding method, in particular to a laser welding method for a high-intensity gas discharge electrode. Background technique [0002] The welding of the electrodes in the lamp has always been using the traditional electrode resistance welding. This technology uses the discharge welding of the upper and lower tungsten electrodes, that is, the workpiece to be welded is pressed between the two electrodes, and the current is applied, and the current flows through the contact surface of the workpiece and the adjacent area. A method in which the resulting resistive heating effect heats it to a molten or plastic state, allowing it to form a metal bond. Due to the influence of various factors, it is difficult to guarantee the quality of the welded product, and the consistency of the welding strength is very poor, and there are the following disadvantages: [0003] (1) The contact surface of the welding electrode is large, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/21
Inventor 何健荣胡欣林芳刘宏沈球
Owner 上海亚尔精密零件制造有限公司
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