CN103252581B - A kind of alloy powder and method of welding galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding - Google Patents
A kind of alloy powder and method of welding galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding Download PDFInfo
- Publication number
- CN103252581B CN103252581B CN201310143397.5A CN201310143397A CN103252581B CN 103252581 B CN103252581 B CN 103252581B CN 201310143397 A CN201310143397 A CN 201310143397A CN 103252581 B CN103252581 B CN 103252581B
- Authority
- CN
- China
- Prior art keywords
- powder
- welding
- laser
- galvanized steel
- alloy
- Prior art date
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a kind of alloy powder and method of welding galvanized steel plain sheet and magnesium alloy based on laser synchronization powder feeding, described powder key component is AlMg
xcuZn, x are the mol ratio of Al and Mg, and proportion is 0-0.4, and size of powder particles is 100-300 order, coordinate process of the present invention can improve wetability between galvanized steel plain sheet and magnesium alloy and compatibility.The present invention take laser as welding heat source; under the protection and heat effect of protective gas; material surface parts fusing to be welded; by effective feeding of alloy powder; the molten bath that easy acquisition is stable; reduce the scaling loss of alloying element, accurately control the ratio of alloying element in weld seam, filler alloys power formulations is flexible; significantly can improve the metallurgical behavior of weld metal; especially for the existence of Zn, can obtain the weld seam without being mingled with, face of weld is without the need to special cleaning; welding efficiency is high; cost is low, and joint is reliable, has ideal Practical meaning.
Description
Technical field
The present invention relates to galvanized steel plain sheet and magnesium alloy welding dissimilar materials field, especially relate to a kind of alloy powder and method of welding galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding.
Background technology
The proportion of magnesium is 1.74g/cm
3, aluminium 2.7g/cm
3, steel and iron 7.8g/cm
3, the usual 0.83 ~ 2.2g/cm of plastics
3.Magnesium is lighter than aluminium by about 1/3rd, uses magnesium alloy to be conducive to automotive light weight technology, is conducive to energy-conservation and reduces discharging.Automobile loss of weight can improve its acceleration; Top and car door loss of weight, can reduce centre of gravity of vehicle, strengthens stability; Anterior loss of weight, moves after can making centre of gravity of vehicle, improves maneuvering performance.Magnesium alloy has comparatively high specific strength, specific stiffness, and the specific strength of magnesium alloy is higher than aluminium alloy and steel, suitable with engineering plastics.Its specific stiffness close to aluminium alloy and steel, far above engineering plastics.In addition, the damping coefficient of magnesium, far above aluminium and iron and steel, has excellent shock resistance, is conducive to vibration and noise reducing, therefore in the auto parts and components such as steering wheel skeleton, steering column support, valve chamber cover, obtains comparatively extensive use.Magnesium alloy has good opourability and dimensional stability, can be cast into thin-walled, netted and complex parts, can integral cast, reduces number of parts, improves die life.Meanwhile, magnesium alloy has good machinability, reduces production cost.If magnesium alloy and reliable connection of automobile main material galvanized steel plain sheet can be realized, then greatly can expand the application of magnesium alloy in auto industry, realize the lightweight of automobile further.
Gap is huge in nature at physics and chemistry for these two kinds of elements of magnesium and iron: fusing point differs 885 DEG C, density contrast 6.122g/cm
3, be almost more than 3 times of magnesium, add the existence (volatilize and be mingled with) of Zn in galvanized steel plain sheet, the effect of these factors causes great difficulty to magnesium alloy with welding of galvanized steel plain sheet.Through finding the literature search of prior art, at Chinese patent " a kind of welding method for alloy element controlled magnesium/steel " (application number: disclose one 201210044300.0) and carry out hot alloying process to steel surface, recycle homemade Al-Zn-Mg welding wire and carry out laser lap welding acquisition welding point, but this method complicated process of preparation, need to carry out pretreatment to steel, add welding cost.At Chinese patent " method of attachment of magnesium steel dissimilar metal cold metal transfer welding-braze " (application number: disclose the method for attachment of a kind of magnesium steel dissimilar metal cold metal transfer welding-braze 201110099736.5), during by welding, welding gun departs from lap gap to be changed to magnesium alloy plate side apart from the span of (L), control weld seam alloying element ratio, then carry out welding with cold metal transfer welding machine and obtain welding point.Although this method technique is simple, because magnesium alloy fusing point is low, during welding, magnesium alloy fusing degree is wayward, and property of welded joint easily worsens.
Summary of the invention
Object of the present invention be exactly propose to overcome defect that above-mentioned prior art exists a kind of based on laser synchronization powder feeding welding galvanized steel plain sheet and the alloy powder of AZ91D magnesium alloy and method with the object of property of welded joint both realizing improving.
Object of the present invention can be achieved through the following technical solutions:
Weld an alloy powder for galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding, key component is AlMg
xcuZn, x are the mol ratio of Al and Mg, and proportion is 0-0.4, and size of powder particles is 100-300 order.Weld a method for galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding, carry out according to the following steps:
The AZ91D magnesium alloy and galvanized steel sheet lap-over of removing surface film oxide are installed; Above-mentioned alloy powder is mixed, utilize powder feeder that alloy powder is sent into bi-material overlapping regions, alloy powder carries out laser irradiation simultaneously, utilize laser by powder smelting, alloy powder melts and forms molten bath under laser irradiation effect, melts workpiece to be welded by molten bath, remove laser, treating that formation weld seam powder sending quantity is solidified in molten bath is 20-30g/min, and laser power is 3-5kW, and speed of welding is 2-4m/min; Welding surroundings is welding under inert gas shielding, and the powder feeding gas of alloy powder is also inert gas.
Compared with prior art, the present invention has the following advantages:
(1) laser is directly radiated on powder, first melting powder, by the fusing of powder, wettingly goes to dissolve workpiece to be welded, accurately can control the ratio of alloying element in weld seam;
(2) fusion process of powder filler is more stable than welding wire process, easily obtains stable molten bath, reduces the scaling loss of alloying element, accurately controls the ratio of alloying element in weld seam;
(3) filler alloys power formulations is flexible, significantly can improve the metallurgical behavior of weld metal, especially for the existence of Zn, can obtain the weld seam without being mingled with;
(4) under inert gas shielding or under atmospheric environment, realize the welding of material, face of weld is without the need to special cleaning, and welding efficiency is high, and cost is low, and joint is reliable, has ideal Practical meaning.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of laser synchronization powder feeding welding galvanized steel plain sheet and magnesium alloy.
In figure, 1---AZ91D magnesium alloy; 2---galvanized steel plain sheet; 3---laser beam; 4---powder feeding passage; 5---weld seam; 6---inert gas.
Detailed description of the invention
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1:
The clamping of material to be welded respectively as shown in Figure 1, is Laser Welding+synchronous powder feeding system combination process.AZD91 magnesium alloy 1 for thickness be the flat board of 3mm, galvanized steel plain sheet 2 for thickness be the flat board of 3mm.By high-entropy alloy powder 200 order AlMg
0.1after CuZn medium ball mill mixes (600 revs/min, ball milling 30 minutes), deliver to workpiece overlap to be welded by powder feeder by passage 4, under laser beam 3 irradiation and inert gas 6 act on, form weld seam 5.The main welding of setting four parameters are: laser power P=3kW, speed of welding v=2m/min, powder sending quantity q=20g/min, overlap joint gap is 0.08mm.
Embodiment 2:
The clamping of material to be welded respectively as shown in Figure 1, is Laser Welding+synchronous powder feeding system combination process.AZD91 magnesium alloy 1 for thickness be the flat board of 3mm, galvanized steel plain sheet 2 be the flat board of 3mm for thickness.By high-entropy alloy powder 250 order AlMg
0.2after CuZn medium ball mill mixes (600 revs/min, ball milling 30 minutes), deliver to workpiece overlap to be welded by powder feeder by passage 4, under laser beam 3 irradiation and inert gas 6 act on, form weld seam 5.The main welding of setting four parameters are: laser power P=4kW, speed of welding v=2.5m/min, powder sending quantity q=25g/min, overlap joint gap is 0.09mm.
Embodiment 3:
The clamping of material to be welded respectively as shown in Figure 1, is Laser Welding+synchronous powder feeding system combination process.AZD91 magnesium alloy 1 for thickness be the flat board of 3mm, galvanized steel plain sheet 2 be the flat board of 3mm for thickness.By high-entropy alloy powder 300 order AlMg
0.3after CuZn medium ball mill mixes (600 revs/min, ball milling 30 minutes), deliver to workpiece overlap to be welded by powder feeder by passage 4, under laser beam 3 irradiation and inert gas 6 act on, form weld seam 5.The main welding of setting four parameters are: laser power P=5kW, speed of welding v=3m/min, powder sending quantity q=30g/min, overlap joint gap is 0.1mm.
The above is preferred embodiment of the present invention, but the present invention should not be confined to the content disclosed in this embodiment.The equivalence completed under not departing from principles of this disclosure so every or amendment, all fall into the scope of protection of the invention.
Claims (3)
1. weld an alloy powder for galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding, it is characterized in that, key component is AlMg
xcuZn, x are the mol ratio of Mg and Al, and proportion is 0.1-0.3, and size of powder particles is 100-300 order.
2. weld a method for galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding, it is characterized in that, concrete steps are:
The magnesium alloy and galvanized steel sheet lap-over of removing surface film oxide are installed; Alloy powder described in claim 1 is mixed, utilize powder feeder that alloy powder is sent into bi-material overlapping regions, alloy powder carries out laser irradiation simultaneously, utilize laser by powder smelting, alloy powder melts and forms molten bath under laser irradiation effect, melts workpiece to be welded by molten bath, remove laser, treating that formation weld seam powder sending quantity is solidified in molten bath is 20-30g/min, and laser power is 3-5kW, and speed of welding is 2-4m/min; Welding surroundings is welding under inert gas shielding, and the powder feeding gas of alloy powder is also inert gas.
3. method of welding galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding according to claim 2, it is characterized in that, overlap joint gap is 0.05-0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310143397.5A CN103252581B (en) | 2013-04-23 | 2013-04-23 | A kind of alloy powder and method of welding galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310143397.5A CN103252581B (en) | 2013-04-23 | 2013-04-23 | A kind of alloy powder and method of welding galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103252581A CN103252581A (en) | 2013-08-21 |
| CN103252581B true CN103252581B (en) | 2016-01-06 |
Family
ID=48956981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310143397.5A Expired - Fee Related CN103252581B (en) | 2013-04-23 | 2013-04-23 | A kind of alloy powder and method of welding galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103252581B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397296B (en) * | 2015-12-30 | 2017-04-26 | 哈尔滨工业大学 | Laser deposition-melt injection synchronous compound connecting method |
| US10640854B2 (en) * | 2016-08-04 | 2020-05-05 | Honda Motor Co., Ltd. | Multi-material component and methods of making thereof |
| CN108161176A (en) * | 2018-01-25 | 2018-06-15 | 珠海市福尼斯焊接技术有限公司 | A kind of cold metal transfer welding procedure |
| CN108517519B (en) * | 2018-04-08 | 2019-12-17 | 东北大学 | Method for improving corrosion resistance of Al-Zn-Mg aluminum alloy friction stir welding joint through laser treatment |
| CN109513940B (en) * | 2019-01-21 | 2022-05-17 | 苏州大学 | Laser preparation method of porous magnesium alloy for organism |
| CN113146039B (en) * | 2021-04-28 | 2022-10-28 | 南昌大学 | Preparation and welding method of intermediate layer composite powder for laser welding of magnesium alloy steel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718362A (en) * | 1993-07-02 | 1995-01-20 | Furukawa Alum Co Ltd | Aluminum alloy for laser welding |
| CN1767922A (en) * | 2003-03-29 | 2006-05-03 | 格里洛工厂股份公司 | method for inert gas welding or inert gas soldering workpieces comprising identical or different metals or metal alloys by means of an additional Zn/Al metal |
| CN102131610A (en) * | 2008-09-08 | 2011-07-20 | 日产自动车株式会社 | Dissimilar metal joining method for magnesium alloy and steel |
| CN102528286A (en) * | 2012-02-24 | 2012-07-04 | 哈尔滨工业大学 | Welding method for alloy element controlled magnesium/steel |
| CN102699535A (en) * | 2012-06-04 | 2012-10-03 | 哈尔滨工程大学 | Magnesium and steel special metal superaudio frequency pulse laser smelting braze-welding wire and welding method |
| CN102764934A (en) * | 2012-07-05 | 2012-11-07 | 兰州理工大学 | Aluminum steel dissimilar metal laser welding-brazing welding method and filled powder |
-
2013
- 2013-04-23 CN CN201310143397.5A patent/CN103252581B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718362A (en) * | 1993-07-02 | 1995-01-20 | Furukawa Alum Co Ltd | Aluminum alloy for laser welding |
| CN1767922A (en) * | 2003-03-29 | 2006-05-03 | 格里洛工厂股份公司 | method for inert gas welding or inert gas soldering workpieces comprising identical or different metals or metal alloys by means of an additional Zn/Al metal |
| CN102131610A (en) * | 2008-09-08 | 2011-07-20 | 日产自动车株式会社 | Dissimilar metal joining method for magnesium alloy and steel |
| CN102528286A (en) * | 2012-02-24 | 2012-07-04 | 哈尔滨工业大学 | Welding method for alloy element controlled magnesium/steel |
| CN102699535A (en) * | 2012-06-04 | 2012-10-03 | 哈尔滨工程大学 | Magnesium and steel special metal superaudio frequency pulse laser smelting braze-welding wire and welding method |
| CN102764934A (en) * | 2012-07-05 | 2012-11-07 | 兰州理工大学 | Aluminum steel dissimilar metal laser welding-brazing welding method and filled powder |
Non-Patent Citations (2)
| Title |
|---|
| "镀锌板的激光填充粉末焊接";李明星;《北京工业大学硕士学位论文》;20061215;正文第一章第1.3节，第二章，第四章 * |
| "镁合金/镀锌钢异种材料激光熔钎焊特性研究";梅长兴;《哈尔滨工业大学硕士学位论文》;20120515;正文第二章2.1.2节，2.3节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103252581A (en) | 2013-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103252581B (en) | A kind of alloy powder and method of welding galvanized steel plain sheet and AZ91D magnesium alloy based on laser synchronization powder feeding | |
| CN102699535B (en) | Magnesium and steel special metal superaudio frequency pulse laser smelting braze-welding wire and welding method | |
| CN106475683B (en) | A kind of laser assembly solder method with Al-Si coating hot forming steel plate | |
| CN101862913B (en) | Electromagnetic current coupling field assisted hybrid melting-brazing method for laser-TIG arc and equipment | |
| CN104014934A (en) | Electric-arc-assisted laser welding-brazing method applicable to dissimilar material butt connection | |
| CN103737176A (en) | Hybrid welding method and hybrid welding equipment for laser electromagnetic pulse | |
| CN103480966A (en) | Austenite stainless steel lap-over laser welding method | |
| CN103433630B (en) | A kind of pulsed wire feeding laser-electric arc spot soldering method | |
| CN110977168A (en) | Connection method of SiCp/Al composite material | |
| CN102896398A (en) | Aluminum alloy arc spot welding method based on CMT (Cold Metal Transmission Welding) and welding system | |
| CN105710511A (en) | Manufacturing method for alloy welded splice | |
| Kumar et al. | Mg and Its Alloy———Scope, Future Perspectives and Recent Advancements in Welding and Processing | |
| Wang et al. | Research status of deep penetration welding of medium-thick plate aluminum alloy | |
| CN106624438B (en) | Zinc-aluminum brazing filler metal | |
| CN103831533A (en) | Titanium alloy laser-MIG composite welding method | |
| CN113798669A (en) | Laser welding method for hot forming steel with coating | |
| CN113210830B (en) | Vacuum electron beam welding method for additive manufacturing and forming gamma-TiAl intermetallic compound | |
| CN104827187B (en) | A kind of method reducing diecast magnesium alloy melting weld porosity | |
| CN210254694U (en) | Laser multifunctional composite processing system | |
| Xiao et al. | Influence of wire addition direction in C02 laser welding of aluminum | |
| CN103286483A (en) | Argon tungsten-arc welding method for magnesium alloys | |
| Yang et al. | Materia ls and Design | |
| CN110788503B (en) | Method for forming advanced dissimilar metal composite structure of 45# steel/tin-lead alloy | |
| Tasalloti et al. | Laser overlap welding of Zn-coated steel on aluminium alloy for patchwork blank applications in the automotive industry | |
| CN103801849A (en) | Welding method for reducing porosity in melting welding of die-cast magnesium alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |