CN103143838A - Seamless hook welding process for front side of water tank - Google Patents
Seamless hook welding process for front side of water tank Download PDFInfo
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- CN103143838A CN103143838A CN2013100561181A CN201310056118A CN103143838A CN 103143838 A CN103143838 A CN 103143838A CN 2013100561181 A CN2013100561181 A CN 2013100561181A CN 201310056118 A CN201310056118 A CN 201310056118A CN 103143838 A CN103143838 A CN 103143838A
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Abstract
The invention discloses a seamless hook welding process for the front side of a water tank, which is characterized in that a welded piece is an overlapped type; a hook is overlapped at the edge of the periphery of the back of the water tank; and laser is shot through the reverse of the welded workpiece to form a nugget, so as to allow the hook to be welded together with the water tank, wherein the water tank body is made of SUS304 stainless-steel of 0.5-2.5 mm; the hook is made of SUS 304 stainless-steel or hot-dip coated zinc sheet of 0.5-2.5 mm; and a robot laser spot welding method is adopted, the welding speed is 12-13 mm/s, the energy is 20-25 J, the frequency is 8-12 Hz, and the welding point position adopts positive defocusing of 1.8-2.2 mm. The welding process has the characteristics of simple structure, low cost and sturdy and durable performance. Due to the adoption of the welding process, the front side of the water tank is seamless, and dispenses with follow-up polishing, the product production procedures are reduced, and accordingly the cost is saved.
Description
Technical field
The present invention relates to a kind of welding procedure of tank hook, relate in particular to the positive seamless welding hook technique of a kind of tank.
Background technology
The welding method of present tank hook is used the spot welding method of electric resistance welding mostly, electric resistance welding (resistance welding) is that welded piece is pressed between two electrodes, and impose electric current, resistance heat effect that workpiece contact-making surface and adjacent domain produce is heated fusing or mecystasis to utilize electric current to flow through, and makes it to form a kind of method of metal combination.Electric resistance welding method mainly contains four kinds, i.e. spot welding, seam weldering, projection welding, butt welding.
Projection welding is a kind of variations of spot welding; On a workpiece, prefabricated salient point is arranged, during projection welding, once can form in the joint one or more nuggets.One of welded piece is gone out or extruded salient point or bulge loop before weldering, weld with plate electrode.Welding process is identical with spot welding.During weldering, salient point is driven plain, and forms joint, can weld simultaneously many points or a ring.
The technical process of spot welding:
1, precompressed guarantees that the workpiece contact is good.
2, energising makes weld form nugget and plasticity ring.
3, outage forging and pressing make nugget crystallisation by cooling under pressure continuation effect, and formative tissue is fine and close, without the solder joint of shrinkage cavity, crackle.
Because the contact area of electrode is determining current density, the resistivity of electrode material and thermal conductivity relation the generation of heat and are scattered and disappeared, thereby the shape of electrode and material are on the appreciable impact that is formed with of nugget.Along with distortion and the wearing and tearing of electrode tip, contact area will increase, and Joint Strength will reduce.
Oxide on surface of the work, dirt, oil and other impurity have increased contact resistance.Blocked up oxide skin(coating) even can make electric current not pass through.Local conducting because current density is excessive, can produces and splash and surperficial scaling loss.The inhomogeneities of oxide skin(coating) also can affect the inconsistent of each solder joint heating, causes the fluctuation of welding quality.Therefore, thoroughly clearing up surface of the work is the necessary condition that guarantees to obtain the high-quality joint.
Problem and the shortcoming of prior art are: after welding, meeting scaling loss in surface has impression, and follow-up the needs polishes, and wasted human and material resources and time, increased the cost of product.
Summary of the invention
Purpose of the present invention technical problem to be solved is to provide a kind of tank positive seamless welding hook technique, it can efficiently solve the rear flume surface meeting of welding scaling loss, impression is arranged, and the follow-up problem that needs polishing has the advantages that to reduce production process, save cost.
For achieving the above object, the technical solution used in the present invention is: the positive seamless welding hook technique of a kind of tank is characterized in that comprising following mode:
1, welding work pieces is connecting form, and hook rides on the edge of tank back side surrounding, and laser is penetrated from the reverse side of welding work pieces form a nugget over, will link up with and tank welds together;
2, the tank body is the SUS304 stainless steel of 0.5～2.5mm; Hook is SUS304 stainless steel or the hot dip galvanizing plate of 0.5～2.5mm;
3, adopt the robot laser spot welding method, speed of welding 12～13mm/s, energy 20～25J, frequency 8～12Hz, bond pad locations adopts positive out of focus 1.8～2.2mm.。
The present invention has adopted above-mentioned technical scheme, has overcome the deficiency of background technology, provides a kind of tank positive seamless welding hook technique, it can efficiently solve the rear flume surface meeting of welding scaling loss, impression is arranged, and the follow-up problem that needs polishing has the advantages that to reduce production process, save cost.
Description of drawings
Accompanying drawing 1 is projection welding work schematic diagram;
Accompanying drawing 2 is working sections figure of the present invention;
Accompanying drawing 3 is top view of the present invention.
In figure: tank 1, hook 2, laser solder joint 3, top electrode 4, workpiece 5, bottom electrode 6, salient point.
The specific embodiment
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention is further described, make technical scheme of the present invention and beneficial effect thereof clearer, clear and definite.
Referring to accompanying drawing 2 to 3, the present invention includes following mode:
1) welding work pieces is connecting form, and hook (2) rides on the edge of tank (1) back side surrounding, and laser is penetrated from the reverse side of welding work pieces form a nugget over, will link up with (2) and tank (1) and weld together;
2) tank (1) body is the SUS304 stainless steel of 0.5～2.5mm; Hook (2) is SUS304 stainless steel or the hot dip galvanizing plate of 0.5～2.5mm;
Adopt the robot laser spot welding method, speed of welding 12～13mm/s, energy 20～25J, frequency 8～12Hz, bond pad locations adopts positive out of focus 1.8～2.2mm.
Description by above-mentioned structure and principle; the person of ordinary skill in the field is to be understood that; the present invention is not limited to the above-mentioned specific embodiment, adopts the improvement of techniques well known and substitute on basis of the present invention and all drop on protection scope of the present invention, should be limited by each claim.
Claims (1)
1. the positive seamless welding hook technique of a tank is characterized in that comprising following mode:
(1) welding work pieces is connecting form, and hook (2) rides on the edge of tank (1) back side surrounding, and laser is penetrated from the reverse side of welding work pieces form a nugget over, will link up with (2) and tank (1) and weld together;
(2) tank (1) body is the SUS304 stainless steel of 0.5～2.5mm; Hook (2) is SUS304 stainless steel or the hot dip galvanizing plate of 0.5～2.5mm;
(3) adopt the robot laser spot welding method, speed of welding 12～13mm/s, energy 20～25J, frequency 8～12Hz, bond pad locations adopts positive out of focus 1.8～2.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100561181A CN103143838A (en) | 2013-02-22 | 2013-02-22 | Seamless hook welding process for front side of water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100561181A CN103143838A (en) | 2013-02-22 | 2013-02-22 | Seamless hook welding process for front side of water tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103143838A true CN103143838A (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100561181A Pending CN103143838A (en) | 2013-02-22 | 2013-02-22 | Seamless hook welding process for front side of water tank |
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| CN (1) | CN103143838A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139244A (en) * | 2014-07-23 | 2014-11-12 | 嘉兴永发电子有限公司 | Single-face traceless welding method for stainless steel panels |
| CN113199141A (en) * | 2020-02-03 | 2021-08-03 | 日本电产株式会社 | Laser bonding method and bonded structure |
| TWI763019B (en) * | 2020-09-02 | 2022-05-01 | 傑利幗鏞 郭 | Welding method of bathroom pendant plate metal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10351779B3 (en) * | 2003-09-19 | 2005-02-10 | Daimlerchrysler Ag | Laser welding for butting plates uses initial tacking, to hold plates together, and ensure that gap between plates is at permissible width for laser welding |
| CN1953839A (en) * | 2004-05-18 | 2007-04-25 | 川崎重工业株式会社 | Laser welding method, laser weld joint, outer plate panel, and rolling stock body structure |
| CN101018641A (en) * | 2004-08-09 | 2007-08-15 | 日本电气株式会社 | Method for welding thin plates of different metal, joined body of double-metal thin plates, electric device, and electric device assembly |
| CN101811228A (en) * | 2010-03-31 | 2010-08-25 | 深圳市大族激光科技股份有限公司 | Laser spot welding method and laser welding products |
| JP2010247232A (en) * | 2009-03-26 | 2010-11-04 | Kobe Steel Ltd | Method for manufacturing welded structure |
-
2013
- 2013-02-22 CN CN2013100561181A patent/CN103143838A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10351779B3 (en) * | 2003-09-19 | 2005-02-10 | Daimlerchrysler Ag | Laser welding for butting plates uses initial tacking, to hold plates together, and ensure that gap between plates is at permissible width for laser welding |
| CN1953839A (en) * | 2004-05-18 | 2007-04-25 | 川崎重工业株式会社 | Laser welding method, laser weld joint, outer plate panel, and rolling stock body structure |
| CN101018641A (en) * | 2004-08-09 | 2007-08-15 | 日本电气株式会社 | Method for welding thin plates of different metal, joined body of double-metal thin plates, electric device, and electric device assembly |
| JP2010247232A (en) * | 2009-03-26 | 2010-11-04 | Kobe Steel Ltd | Method for manufacturing welded structure |
| CN101811228A (en) * | 2010-03-31 | 2010-08-25 | 深圳市大族激光科技股份有限公司 | Laser spot welding method and laser welding products |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139244A (en) * | 2014-07-23 | 2014-11-12 | 嘉兴永发电子有限公司 | Single-face traceless welding method for stainless steel panels |
| CN113199141A (en) * | 2020-02-03 | 2021-08-03 | 日本电产株式会社 | Laser bonding method and bonded structure |
| TWI763019B (en) * | 2020-09-02 | 2022-05-01 | 傑利幗鏞 郭 | Welding method of bathroom pendant plate metal |
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Application publication date: 20130612 |