CN102039472A - Tailor welding method of thick aluminium alloy plate - Google Patents
Tailor welding method of thick aluminium alloy plate Download PDFInfo
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- CN102039472A CN102039472A CN2009101801415A CN200910180141A CN102039472A CN 102039472 A CN102039472 A CN 102039472A CN 2009101801415 A CN2009101801415 A CN 2009101801415A CN 200910180141 A CN200910180141 A CN 200910180141A CN 102039472 A CN102039472 A CN 102039472A
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Abstract
The present invention belongs to a welding method of aluminium alloy plate, specifically relates to a tailor welding method of thickness aluminium alloy plate. The method of the present invention has the advantages that by the welding technology method of the present invention, tailor welding of an aluminium alloy plate more than 60mm in thickness can be welded by manual consumable electrode argon welding; level II welding joint requirements of X-ray fault detection are satisfied; and the tensile strength of welding joint reaches 96% of the strength of the base metal.
Description
Technical field
The invention belongs to a kind of welding method of aluminium alloy plate, be specifically related to a kind of butt welding method of large aluminum alloy plate.
Background technology
At present, weld thick aluminium alloy plate and mainly adopt manual metal argon arc welding and electron beam welding.Electron beam welding cost height must carry out in vacuum chamber, and the size of the plate that welds is subjected to the restriction of vacuum chamber space size.Manual metal argon arc welding welds the above aluminium alloy plate of thickness 60mm at present, and internal flaw does not reach the requirement of x-ray detection II level weld seam, and the tensile strength of weld seam is less than mother metal tensile strength 65%.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can satisfy x-ray detection and reach the requirement of II level weld seam, the tensile strength of weld seam reaches the butt welding method of a kind of thick aluminium alloy plate of 96%.
The present invention is achieved in that a kind of butt welding method of thick aluminium alloy plate, and it may further comprise the steps,
(1) two welding aluminium sheet difference bevelling, and bevel for welding is implemented mechanical type clear up;
(2) aluminium alloy plate preheating, 70 ℃～150 ℃ of preheat temperatures;
(3) with the aluminium alloy plate joint close of two weldings;
(4) carry out back welding, to one section of center weldering, again both sides are respectively welded two sections earlier, to welding one section again in the middle of per two sections weld seams, then the whole piece bevel for welding is implemented welding again;
(5) trimming surface is again to whole piece bevel for welding welding one time;
(6) polish off welding line joint, adopt step (5) to weld the reverse side bevel for welding again;
(7) welding is implemented in layering, up to bevel for welding is filled up.
Environment temperature is remained in 13 ℃～26 ℃ scopes, and ambient humidity is less than 50%.Two sheet separation 0mm～5mm in the step (3).
In step (7), the proportioning of welding current and arc voltage is " an inferior jet spray transfer " in the welding process.
Advantage of the present invention is, by welding technique of the present invention, the welding of aluminium alloy plate that can be by the above thickness of manual metal argon arc welding welding 60mm reaches the requirement of x-ray detection II level weld seam, and the tensile strength of weld seam has reached 96% of strength of parent.
Description of drawings
Fig. 1 is the solder joint form schematic diagram of the thick aluminium alloy plate in the butt welding method of a kind of thick aluminium alloy plate provided by the present invention.
Among the figure, 1 first thick aluminium sheet, 2 second thick aluminium sheets, 3 bevel for weldings, 4 reverse side bevel for weldings.
The specific embodiment
Describe the present invention below in conjunction with drawings and Examples:
A kind of butt welding process method of large-scale thick aluminium alloy plate comprises: the selection of Type of Welding, and the selection of solder joint form, the welding surroundings parameter is selected, the selection of welding parameter.
Its concrete implementation step is as follows:
(1) two welding aluminium sheet difference bevelling is implemented the mechanical type cleaning to bevel for welding;
(2) aluminium alloy plate preheating, 70 ℃～150 ℃ of preheat temperatures; And making environment temperature remain on 13 ℃～26 ℃, ambient humidity is less than 50%;
(3) with the aluminium alloy plate joint close of two weldings, two sheet separation 0mm～5mm;
(4) carry out back welding: to one section of center weldering, again both sides are respectively welded two sections earlier, to welding one section again in the middle of per two sections weld seams, then the whole piece bevel for welding is implemented welding again;
(5) trimming surface is again to whole piece bevel for welding welding one time;
(6) polish off welding line joint, adopt said method to weld the reverse side bevel for welding again;
(7) welding is implemented in layering, up to bevel for welding is filled up.Wherein the proportioning of welding current and arc voltage is " an inferior jet spray transfer " in the welding process.
Specific embodiment:
Select metal argon arc welding for use, concrete implementation step is as follows:
(1) two is welded aluminium sheet 1 and 2 bevels 3 respectively, and bevel for welding 3 is implemented the mechanical types cleaning, reaches oxide-film and other impurity of removing out on the groove and gets final product;
(2) aluminium alloy plate 1 and 2 preheatings, preheat temperature remain in 70 ℃～150 ℃ scopes, and promptly 70 ℃, 75 ℃, 80 ℃, 85 ℃, 90 ℃, 95 ℃, 100 ℃, 105 ℃, 110 ℃, 115 ℃, 120 ℃, 125 ℃, 130 ℃, 135 ℃, 140 ℃, 145 ℃, 150 ℃, and make environment temperature remain on 13 ℃～26 ℃, and environment temperature is 13 ℃, 16 ℃, 19.5 ℃, 23 ℃, 26 ℃, ambient humidity is less than 50%;
(3) with the aluminium alloy plate 1 and 2 joint closes of two weldings, two sheet separations remain on 0mm～5mm, and the gap between two plates is 0mm, 1mm, 2mm, 3mm, 4mm or 5mm;
(4) carry out back welding: to one section of center weldering, again both sides are respectively welded two sections earlier,, then whole bevel for welding 3 is implemented welding again to welding one section again in the middle of per two sections weld seams;
(5) trimming surface is again to whole piece bevel for welding 3 welding one time;
(6) polish off welding line joint, adopt step (5) to weld reverse side bevel for welding 4 again;
(7) welding is implemented in layering, and up to bevel for welding 3 and 4 is filled up, wherein, the proportioning of the good electric arc electric shock of welding current is " an inferior jet spray transfer ".
By welding technique of the present invention, can weld the welding of the aluminium alloy plate of the above thickness of 60mm by manual metal argon arc welding, reach the requirement of x-ray detection II level weld seam, the tensile strength of weld seam has reached 96% of strength of parent.
Claims (4)
1. the butt welding method of a thick aluminium alloy plate, it is characterized in that: it may further comprise the steps,
(1) two welding aluminium sheet difference bevelling, and bevel for welding is implemented mechanical type clear up;
(2) aluminium alloy plate preheating, 70 ℃～150 ℃ of preheat temperatures;
(3) with the aluminium alloy plate joint close of two weldings;
(4) carry out back welding, to one section of center weldering, again both sides are respectively welded two sections earlier, to welding one section again in the middle of per two sections weld seams, then the whole piece bevel for welding is implemented welding again;
(5) trimming surface is again to whole piece bevel for welding welding one time;
(7) polish off welding line joint, adopt step (5) to weld the reverse side bevel for welding again;
(8) welding is implemented in layering, up to bevel for welding is filled up.
2. the butt welding method of a kind of thick aluminium alloy plate as claimed in claim 1, it is characterized in that: environment temperature is remained in 13 ℃～26 ℃ scopes, and ambient humidity is less than 50%.
3. the butt welding method of a kind of thick aluminium alloy plate as claimed in claim 1 or 2 is characterized in that: two sheet separation 0mm～5mm in the step (3).
4. the butt welding method of a kind of thick aluminium alloy plate as claimed in claim 1 or 2, it is characterized in that: in step (7), the proportioning of welding current and arc voltage is " an inferior jet spray transfer " in the welding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101801415A CN102039472A (en) | 2009-10-23 | 2009-10-23 | Tailor welding method of thick aluminium alloy plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101801415A CN102039472A (en) | 2009-10-23 | 2009-10-23 | Tailor welding method of thick aluminium alloy plate |
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| CN102039472A true CN102039472A (en) | 2011-05-04 |
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| CN2009101801415A Pending CN102039472A (en) | 2009-10-23 | 2009-10-23 | Tailor welding method of thick aluminium alloy plate |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225488A (en) * | 2011-06-08 | 2011-10-26 | 常州市伟泰电子科技有限公司 | Welding process of aluminium-magnesium alloy sheet |
| CN102284772A (en) * | 2011-08-25 | 2011-12-21 | 哈尔滨汽轮机厂有限责任公司 | Argon arc back sealing welding method for housing of low-pressure water supply heater of third-generation nuclear power steam turbine |
| CN102363237A (en) * | 2011-09-22 | 2012-02-29 | 中国航天科工集团第二研究院二一〇所 | Method for welding thick aluminum alloy plate |
| CN102837115A (en) * | 2012-09-27 | 2012-12-26 | 中国化学工程第三建设有限公司 | Seamless welding method for aluminum and aluminum alloy or pipeline |
| CN104014946A (en) * | 2014-05-16 | 2014-09-03 | 南京南车浦镇城轨车辆有限责任公司 | Welding groove structure of Z-shaped aluminum alloy section butt weld and welding method of Z-shaped aluminum alloy section butt weld |
| CN104028880A (en) * | 2013-03-06 | 2014-09-10 | 青岛四方庞巴迪铁路运输设备有限公司 | Welding process method of aluminum profile car hook plate |
| CN104259629A (en) * | 2014-08-07 | 2015-01-07 | 托伦斯精密机械（上海）有限公司 | Method for welding aluminum alloy cavity |
| CN104439644A (en) * | 2014-11-27 | 2015-03-25 | 芜湖中集瑞江汽车有限公司 | Inert gas shielded welding process of aluminum alloy thick plate with thickness being over 12 mm |
| CN105014204A (en) * | 2015-07-14 | 2015-11-04 | 安庆市峰邦工业产品设计有限公司 | Electrowelding jointing device for aluminum alloy |
| CN105057907A (en) * | 2015-08-25 | 2015-11-18 | 河北星烁锯业股份有限公司 | Splicing-welding process for diamond circular saw web base bodies with super-large diameters |
| CN110948091A (en) * | 2018-09-27 | 2020-04-03 | 中国商用飞机有限责任公司 | Manufacturing method of aluminum alloy airtight cavity |
-
2009
- 2009-10-23 CN CN2009101801415A patent/CN102039472A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225488A (en) * | 2011-06-08 | 2011-10-26 | 常州市伟泰电子科技有限公司 | Welding process of aluminium-magnesium alloy sheet |
| CN102284772A (en) * | 2011-08-25 | 2011-12-21 | 哈尔滨汽轮机厂有限责任公司 | Argon arc back sealing welding method for housing of low-pressure water supply heater of third-generation nuclear power steam turbine |
| CN102284772B (en) * | 2011-08-25 | 2013-04-03 | 哈尔滨汽轮机厂有限责任公司 | Argon arc back sealing welding method for housing of low-pressure water supply heater of third-generation nuclear power steam turbine |
| CN102363237A (en) * | 2011-09-22 | 2012-02-29 | 中国航天科工集团第二研究院二一〇所 | Method for welding thick aluminum alloy plate |
| CN102837115A (en) * | 2012-09-27 | 2012-12-26 | 中国化学工程第三建设有限公司 | Seamless welding method for aluminum and aluminum alloy or pipeline |
| CN104028880A (en) * | 2013-03-06 | 2014-09-10 | 青岛四方庞巴迪铁路运输设备有限公司 | Welding process method of aluminum profile car hook plate |
| CN104014946A (en) * | 2014-05-16 | 2014-09-03 | 南京南车浦镇城轨车辆有限责任公司 | Welding groove structure of Z-shaped aluminum alloy section butt weld and welding method of Z-shaped aluminum alloy section butt weld |
| CN104014946B (en) * | 2014-05-16 | 2016-10-12 | 南京中车浦镇城轨车辆有限责任公司 | The bevel for welding structure of Z-type aluminium alloy extrusions butt weld and welding method thereof |
| CN104259629A (en) * | 2014-08-07 | 2015-01-07 | 托伦斯精密机械（上海）有限公司 | Method for welding aluminum alloy cavity |
| CN104439644A (en) * | 2014-11-27 | 2015-03-25 | 芜湖中集瑞江汽车有限公司 | Inert gas shielded welding process of aluminum alloy thick plate with thickness being over 12 mm |
| CN105014204A (en) * | 2015-07-14 | 2015-11-04 | 安庆市峰邦工业产品设计有限公司 | Electrowelding jointing device for aluminum alloy |
| CN105057907A (en) * | 2015-08-25 | 2015-11-18 | 河北星烁锯业股份有限公司 | Splicing-welding process for diamond circular saw web base bodies with super-large diameters |
| CN110948091A (en) * | 2018-09-27 | 2020-04-03 | 中国商用飞机有限责任公司 | Manufacturing method of aluminum alloy airtight cavity |
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Address after: 100074 Fengtai District City, east of the north of Beijing, Wang Gang Road, No. 9 Applicant after: Beijing Xinghang Mechanical & Electric Equipment Co., Ltd. Address before: 100074 Fengtai District City, east of the north of Beijing, Wang Gang Road, No. 9 Applicant before: Beijing Xinghang Mechanical-Electrical Equipment Factory |
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Application publication date: 20110504 |