CN104985334A - Welding method for short welding joint - Google Patents
Welding method for short welding joint Download PDFInfo
- Publication number
- CN104985334A CN104985334A CN201510370775.2A CN201510370775A CN104985334A CN 104985334 A CN104985334 A CN 104985334A CN 201510370775 A CN201510370775 A CN 201510370775A CN 104985334 A CN104985334 A CN 104985334A
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- CN
- China
- Prior art keywords
- welding
- welded
- short
- weld seam
- short weld
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a welding method for a short welding joint. The welding method includes the following steps that firstly, dividing grooves perpendicular to the short welding joint are formed in each part to be welded; secondly, the two ends of the short welding joint are welded; and thirdly, welding joints on the two sides of the short welding joint are welded alternately to reach the two ends of the short welding joint. The length of the dividing grooves is smaller than the width of welding heat effect areas, and the number of the dividing grooves in each part to be welded is larger than 4. According to the welding method for the short welding joint, the dividing grooves absorb welding deformation so that the deformation amount of non-heat effect areas of the parts to be welded can be reduced to the minimum; the effect of controlling the welding deformation of the short welding joint is obvious. The method is simple and easy to implement, and only the dividing grooves slightly larger than the heat effect areas need to be formed.
Description
Technical field
The present invention relates to welding technique field, is more particularly a kind of welding method of short weld seam.
Background technology
In existing solder technology, in process particularly to short weld seam (length is less than 200mm), welding deformation is very large for the impact of weldment, and conventional control welding deformation method has: point means of spot welds, be symmetrically welded, rigidly fix, heat treatment, mechanical checkout etc.
But the enforcement of these methods all has great difficulty, and the expense that will drop into is larger.
Summary of the invention
Technical scheme of the present invention is achieved in that a kind of welding method of short weld seam, comprises the steps:
1. slot segmentation perpendicular to short weld seam is set respectively in each to-be-welded pieces;
2. the two end portions of short weld seam is welded;
3. two side welds of the short weld seam of staggered welding are until the two ends of short weld seam;
Wherein, the length of described slot segmentation is less than the width in welding effect district, and in described each to-be-welded pieces, the quantity of slot segmentation is greater than 4.
Preferably, the position of described slot segmentation in described to-be-welded pieces is identical.
Preferably, downhand welding is welded as to the weld seam between slot segmentation.
Preferably, after described short weld seam has welded, more slot segmentations are welded.
Beneficial effect of the present invention: slot segmentation of the present invention absorbs welding deformation, makes the deflection in the non-thermal effect district of weldment be reduced to minimum; The deformation effect that this method controls the welding of short weld seam is obvious; This method is simple, and only the slot segmentation need driveed slightly larger than region of thermal effect just can.
Detailed description of the invention
Embodiment provided by the invention is described in further detail:
A welding method for short weld seam, comprises the steps:
1. slot segmentation perpendicular to short weld seam is set respectively in each to-be-welded pieces;
2. the two end portions of short weld seam is welded;
3. two side welds of the short weld seam of staggered welding are until the two ends of short weld seam;
Wherein, the length of described slot segmentation is less than the width in welding effect district, and in described each to-be-welded pieces, the quantity of slot segmentation is greater than 4.
Preferably, the position of described slot segmentation in described to-be-welded pieces is identical.
Preferably, downhand welding is welded as to the weld seam between slot segmentation.
Preferably, after described short weld seam has welded, more slot segmentations are welded.
Beneficial effect of the present invention: slot segmentation of the present invention absorbs welding deformation, makes the deflection in the non-thermal effect district of weldment be reduced to minimum; The deformation effect that this method controls the welding of short weld seam is obvious; This method is simple, and only the slot segmentation need driveed slightly larger than region of thermal effect just can.
In this description, the present invention is described with reference to its specific embodiment.But, still can make various amendment and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, description is regarded in an illustrative, rather than a restrictive.
Claims (4)
1. a welding method for short weld seam, is characterized in that, comprises the steps:
1. slot segmentation perpendicular to short weld seam is set respectively in each to-be-welded pieces;
2. the two end portions of short weld seam is welded;
3. two side welds of the short weld seam of staggered welding are until the two ends of short weld seam;
Wherein, the length of described slot segmentation is less than the width in welding effect district, and in described each to-be-welded pieces, the quantity of slot segmentation is greater than 4.
2. according to the welding method of the short weld seam described in claim 1, it is characterized in that: the position of described slot segmentation in described to-be-welded pieces is identical.
3. according to the welding method of the short weld seam described in claim 2, it is characterized in that: downhand welding is welded as to the weld seam between slot segmentation.
4. the welding method of the short weld seam according to any one of claim 1 to 3, is characterized in that: after described short weld seam has welded, then weld many slot segmentations.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510370775.2A CN104985334A (en) | 2015-06-30 | 2015-06-30 | Welding method for short welding joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510370775.2A CN104985334A (en) | 2015-06-30 | 2015-06-30 | Welding method for short welding joint |
Publications (1)
Publication Number | Publication Date |
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CN104985334A true CN104985334A (en) | 2015-10-21 |
Family
ID=54297289
Family Applications (1)
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CN201510370775.2A Pending CN104985334A (en) | 2015-06-30 | 2015-06-30 | Welding method for short welding joint |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106312269A (en) * | 2016-10-13 | 2017-01-11 | 广西大学 | Welding method for medium steel plates for boilers |
CN106346106A (en) * | 2016-10-13 | 2017-01-25 | 广西大学 | Method for welding thick steel plate for bridge |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07148594A (en) * | 1993-11-26 | 1995-06-13 | Hitachi Ltd | Welded joint |
CN102069307A (en) * | 2010-10-15 | 2011-05-25 | 林德工程(杭州)有限公司 | Method for welding bottom plate of large flat-bottom storage tank |
CN102107338A (en) * | 2011-03-21 | 2011-06-29 | 南京雷尔伟新技术有限公司 | Vehicle body draft, bolster and buffer assembling and welding process |
CN102672360A (en) * | 2012-05-16 | 2012-09-19 | 上海人民电力设备股份有限公司 | Welding method for long weld joint |
-
2015
- 2015-06-30 CN CN201510370775.2A patent/CN104985334A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07148594A (en) * | 1993-11-26 | 1995-06-13 | Hitachi Ltd | Welded joint |
CN102069307A (en) * | 2010-10-15 | 2011-05-25 | 林德工程(杭州)有限公司 | Method for welding bottom plate of large flat-bottom storage tank |
CN102107338A (en) * | 2011-03-21 | 2011-06-29 | 南京雷尔伟新技术有限公司 | Vehicle body draft, bolster and buffer assembling and welding process |
CN102672360A (en) * | 2012-05-16 | 2012-09-19 | 上海人民电力设备股份有限公司 | Welding method for long weld joint |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106312269A (en) * | 2016-10-13 | 2017-01-11 | 广西大学 | Welding method for medium steel plates for boilers |
CN106346106A (en) * | 2016-10-13 | 2017-01-25 | 广西大学 | Method for welding thick steel plate for bridge |
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Application publication date: 20151021 |