Electromagnetic impact device for controlling welding heat cracking and deformation

A thermal cracking and electromagnetic technology, applied in the direction of welding equipment, auxiliary equipment, welding equipment, etc., can solve the problems such as the difficulty of quantifying the size of the impact force, the inability to reduce the lateral shrinkage of the weld seam, and the large vibration of the hammerhead deflection. Simple, easy mechanical force transmission, low cost effect
CN1943969AInactive Publication Date: 2007-04-11HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2007-04-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to welding technology, and is one kind of electromagnetic impact device for controlling welding heat crack and deformation. The electromagnetic impact device includes one pulse discharge circuit, and one coil with two input ends connected to the output of the pulse discharge circuit. The coil is set over the weld seam, and has lower surface apart from the upper surface of the weld seam by 2-5 mm and center in the distance to the center of the welding torch of 25-60 mm. The present invention has simple operation, easy control on energy, small size, low cost, stereo electromagnetic impact force and no need of contacting the coil with the welded workpiece.
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Description

technical field

[0001] The invention relates to the technical field of controlling welding hot crack and deformation. Background technique

[0002] Welding hot cracks, welding residual stress and residual deformation are common problems in the welding process. In order to solve the above problems, various devices for controlling residual stress and residual deformation have been proposed at home and abroad, such as static and dynamic temperature difference stretching, rolling with welding Pressure, hammering with welding and impact rolling device with welding etc., but the above-mentioned devices all have their weak points. Static and dynamic stretching devices cannot reduce the lateral shrinkage of the weld, and the production efficiency is low and the operation is complicated. The welding rolling device is huge, and the rolling wheel is easy to interfere with the welding torch, resulting in arcing. The welding hammering device has the disadvantages that the hammer head d...

Claims

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