A double-sided welding method and double-sided welded product

A double-sided welding and single-sided welding technology, applied in welding equipment, welding accessories, arc welding equipment, etc., can solve the problems of loss of original dimensional accuracy of weldments, uncontrollable appearance of the back of welds, and large deformation of weldments. Achieve the effect of inhibiting welding pores and welding hot and cold cracks, reducing heat treatment processes and trimming processes, and reducing welding energy consumption

Active Publication Date: 2021-10-08
SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the increase in output power will lead to large deformation of the weldment, loss of the original dimensional accuracy of the weldment, high heat during welding will also form welding pores, welding cracks, etc., resulting in quality problems; the appearance of the back of the weld is usually uncontrollable, and Uneven surfaces can create localized stress concentrations in weldments that can cause structural failure

Method used

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  • A double-sided welding method and double-sided welded product

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Embodiment Construction

[0036] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicit...

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Abstract

The invention provides a double-sided welding method and a double-sided welding product, the method is used for welding a first workpiece and a second workpiece, wherein the first workpiece has a first end, and the second workpiece has a second end , the first end and the second end are adjacent, the first workpiece, the second workpiece, the first end and the second end define a first side and a second side in space; the The method includes: welding the first end and the second end from the first side to form a first weld; welding the first end to the second end from the second side to form a joint with the second end. The first weld seam has a second weld seam that overlaps in depth. The invention can improve welding quality and reduce welding cost.

Description

technical field [0001] The invention relates to the welding field, in particular to a double-sided welding method and a double-sided welding product. Background technique [0002] In the field of welding, "welding penetration" has always been regarded as an important technical index for evaluating welding quality. In order to obtain high-quality welded joints, improve welding strength and increase welding sealing, one of the most direct and effective methods is to increase welding penetration. At present, in order to obtain a larger penetration value, the conventional practice is to increase the output power of the welding machine. However, the increase in output power will lead to large deformation of the weldment, loss of the original dimensional accuracy of the weldment, high heat during welding will also form welding pores, welding cracks, etc., resulting in quality problems; the appearance of the back of the weld is usually uncontrollable, and Uneven surfaces can crea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/02B23K9/167B23K9/173B23K9/235B23K9/32
CPCB23K9/02B23K9/167B23K9/173B23K9/235B23K9/32
Inventor 冯宾熊志平黄波赵凤荣汤轶群
Owner SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
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