CN1730219A - Non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position reinforcement method - Google Patents
Non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position reinforcement method Download PDFInfo
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- CN1730219A CN1730219A CN 200510010266 CN200510010266A CN1730219A CN 1730219 A CN1730219 A CN 1730219A CN 200510010266 CN200510010266 CN 200510010266 CN 200510010266 A CN200510010266 A CN 200510010266A CN 1730219 A CN1730219 A CN 1730219A
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Abstract
The invention relates to a method for reinforcing aluminum-based composite soldering seam. The invention comprises the following steps: preparing filled composite of soldering seam; equipping electromagnetic agitating device; choosing impulse current of 140-170 ampere as welding current, and 16 volt as welding voltage; choosing pure argon gas or nitrogen-argon mixture gas as shielding gas, and 0.5-1.2 cubic meter/hour as gas flow; welding speed being 180-210 millimeter/minute; post-treating of welds; heating weldment to 510-550deg C and keeping 0.7-1.3 hours; putting weldment into water to get cool; heating to 150-200deg C and keeping 40-55 hours; And cooling the weldment by air cooling to indoor temperature. The invention has advantages of simple operation, high-strength welding joint and close strength between welding joint and base metal.
Description
Technical field:
The present invention relates to a kind of enhancing technology of aluminum matrix composite weld seam.
Background technology:
Aluminum matrix composite is owing to have advantages such as high specific strength, specific stiffness, dimensional stability and antivibration, high temperature resistant, aging, anti-cosmic ray, be with a wide range of applications at industrial circles such as space flight, aviation, automobile, electronics, current metal-base composites develops and the main flow of research work and become.Also point out in National Natural Science Foundation of China's " " 15 " are subsidy field demonstration report collection preferentially ": " use of new material (as: composite) makes manufacturing techniques available face test, needs to produce corresponding new manufacturing technology ".Current, the preparation technology of aluminum matrix composite, plastic forming technology, cold mechanical processing technique and Technology for Heating Processing, process of surface treatment etc. have been carried out number of research projects, lag far behind otherwise research but have its weldability and Study of Welding Technology only, become serious hindrance and bottleneck that this kind material moves towards practicability.As everyone knows, any advanced material only is processed to structural member and just really has use value, and that welding forms structural member often is essential, sometimes or even unique manufacturing process.The main cause why aluminum matrix composite falls behind in the research of welding field is to cause its weldability too poor owing to wild phase and matrix at the greatest differences aspect physics and the chemical property.At present comparative maturity also only is the welding that continuous fiber strengthens metal-base composites, and the welding of the what is called of this composite, in fact mainly be the outer matrix of composite with matrix between be connected, be not the welding between the composite.And for use amount in the engineering relatively big, the connection of discontinuous (particle or whisker) reinforced aluminum matrix composites cheaply; when carrying out the melting of such material; but run into great difficulty; during argon tungsten-arc welding (TIG) if do not add welding wire or directly use mother metal as packing material; because the viscosity in molten bath is very big; to weld " in a complete mess "; promptly not only weld seam is difficult to smooth shaping; send out " slag "; and inner a large amount of loose, pore, crackles arranged, defective such as be mingled with, can not form the welding point on the minimum meaning at all.The document inquiry also shows; so far; the United States, Russia, day etc., country was when the TIG that carries out aluminum matrix composite, welding (MIG); what adopt is aluminium alloy; rather than aluminum matrix composite is as welding wire, though formed weld seam in appearance, the composition of weld seam and to organize be aluminium alloy rather than aluminum matrix composite basically; welding point and mother metal performance differ greatly, and do not reach instructions for use.In addition, at present external industrial advanced country also carries out big quantity research at aspects such as the diffusion welding (DW) of aluminum matrix composite, friction welding (FW), electric resistance welding, solderings, have also from being welded into joint in appearance, but wild phase and interfacial failure thereof are serious, strength of joint is low, also is not successfully applied to the report of industrial mass manufacture so far.And in all welding methods, only the TIG weldering is strong because of Technological adaptabilities such as its butt joint form, weldment size, welding positions, and the welding equipment cost is low, has application value most.
Summary of the invention:
The objective of the invention is the problem that, welding point low for the strength of welded joint that solves aluminum matrix composite and mother metal performance differ greatly, a kind of non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position Enhancement Method is provided.That the present invention has is easy and simple to handle, strength of welded joint is high, welding point and the approaching characteristics of strength of parent.Step of the present invention is as follows: the packing material of one, preparing weld seam; Two, electromagnetic mixing apparatus is installed on welding gun; Three, downhand position, welding current are 140～170 amperes pulse current, and weldingvoltage is 16 volts; Pure argon or nitrogen-argon mixture gas protection, gas flow is 0.5～1.2 cubic metre/hour; Speed of welding is 180～210 mm/min; Four, after welding treatment; Weldment is heated to 510～550 ℃ and be incubated 0.7～1.3 hour, then weldment is put into water and cool off, be heated to 150～200 ℃ and be incubated 40～55 hours again, insulation after finishing gets final product weldment air cooling to room temperature.That the present invention has is easy and simple to handle, strength of welded joint is high, welding point and the approaching advantage of strength of parent.The welding point of aluminum matrix composite of the present invention can reach 85% of strength of parent.
The specific embodiment:
The specific embodiment one: the step of present embodiment is as follows: the packing material of one, preparing weld seam; Two, electromagnetic mixing apparatus being installed on welding gun is used for the molten bath is stirred; Three, downhand position, welding current are 140～170 amperes pulse current, and weldingvoltage is 16 volts; Pure argon or nitrogen-argon mixture gas protection, gas flow is 0.5～1.2 cubic metre/hour; Speed of welding is 180～210 mm/min; Four, after welding treatment; Weldment is heated to 510～550 ℃ and be incubated 0.7～1.3 hour, then weldment is put into water and cool off, be heated to 150～200 ℃ and be incubated 40～55 hours again, insulation after finishing gets final product weldment air cooling to room temperature.
The specific embodiment two: the percent by volume of nitrogen-argon mixture gas is described in the present embodiment step 3: nitrogen is 20～50%, argon gas is 50～80%.Other step is identical with the specific embodiment one.
The specific embodiment three: the packing material of the described weld seam of present embodiment is the tubulose flux-cored wire, the external diameter of flux cored wire is 1.2～1.6mm, tubing is that pure Al makes, the medicine core is made by weight percentage by the powder of following ingredients: Si:8～8.5%, Mg:0.5～0.8%, Ti:0.8～1.05, Y (yttrium): 0.3～0.5%, Sc (scandium): 0.2～0.25%, SiCp:2%, KCl:0.5%, LiCl:0.8%, AlF:1%, surplus is the Al powder.The tubulose flux-cored wire of present embodiment is applicable to welding ZL101A/SiCp/20p composite.The particle diameter of powder, for the welding wire of Φ 1.2mm, particle diameter is 75～180 μ m; For the welding wire of Φ 1.6mm, particle diameter is 75～250 μ m.Adopt drawing formula seamed cored wire manufacturing process.
The specific embodiment four: the packing material of the described weld seam of present embodiment is the tubulose flux-cored wire, the external diameter of flux cored wire is 1.2～1.6mm, tubing is that pure Al makes, and the medicine core is made by weight percentage by the powder of following ingredients: Si:6.5～7.5%, Mg:0.5～0.6%, Y:0.2～0.3%, Sc:0.4%, SiCp:3%, Y
2O
3: Ti:0.5% 5%,, surplus is the Al powder.The tubulose flux-cored wire of present embodiment is applicable to welding ZL101A/SiCp/20p composite.Powder diameter and process for manufacturing welding wire are with embodiment three.
The specific embodiment five: the packing material of the described weld seam of present embodiment is the tubulose flux-cored wire, the external diameter of flux cored wire is 1.2～1.6mm, tubing is that pure Al makes, the medicine core is made by weight percentage by the powder of following ingredients: Si:7%, Mg:6%, Y:2%, Sc:0.3%, SiCp:5%, KCl:0.5%, LiCl:0.8%, AlF 1%, surplus is the Al powder.The tubulose flux-cored wire of present embodiment is applicable to welding ZL101A/SiCp/20p composite.Powder diameter and process for manufacturing welding wire are with embodiment three.
The specific embodiment six: the packing material of the described weld seam of present embodiment is the tubulose flux-cored wire, the external diameter of flux cored wire is 1.2～1.6mm, tubing is that pure Al makes, the medicine core is made by weight percentage by the powder of following ingredients: titanium valve 40%, aluminium powder 55% and silica flour 5%, wherein the titanium valve composition is (Wt%): Fe:0.11%, Ni:0.07%, C:0.03%, N:0.06%, O:0.1%, H:0.3%, Ca:0.02%, Si:0.05%, Cl:0.004%, and surplus is Ti.The tubulose flux-cored wire of present embodiment is applicable to welding SiCp enhancing aluminum-base composite material by silicon carbide particles SiCp/6061Al.Powder diameter and process for manufacturing welding wire are with embodiment three.
The specific embodiment seven: the packing material of the described weld seam of present embodiment is made for the Al-Si solid welding wire adds coating material, and coating material is SiC particle or the Al that accounts for the metallic particles that contains the rare earth yttrium of Al-Si solid welding wire weight 2～15% and account for Al-Si solid welding wire weight 3～5%
2O
3Particle mixes with bonding agent, is coated on the Al-Si solid welding wire surface.The described metallic particles that contains the rare earth yttrium is yttrium silicon or yttrium alumina particles etc.The diameter that is coated with particle outward is 75～100 μ m, with polystyrene (PS)+ethyl acetate diluent, or 502 glue+acetone diluted agent, after the particle mixing and stirring, (diameter 2～3mm) is coated with and dips in 0.3～0.5mm thick coating, natural air drying then with solid core welding wire.This technology is mainly used in the manual TIG of silk filling weldering.
The specific embodiment eight: the packing material of the described weld seam of present embodiment is metal titanium sheet or rare earth metal yttrium pellet, and the thickness of metal titanium sheet or rare earth metal yttrium pellet is 0.2～0.4mm.
The specific embodiment nine: present embodiment is carried out the TIG weldering to SiCp enhancing aluminum-base composite material by silicon carbide particles SiCp/6061Al, throat thickness is 3 millimeters, the downhand position, using welding current is 140 amperes, weldingvoltage is 16 volts, speed of welding is 210 mm/min, and argon flow amount is 8 liters/minute.Other step is identical with the specific embodiment one.Under the state before after welding treatment, strength of joint is 64% of a mother metal.
The specific embodiment ten: present embodiment is carried out the TIG weldering to the SiCp/ZL101 aluminum matrix composite, adopts the TB2 titanium sheet of 0.3 millimeters thick to do packing material, and welding current is 170 amperes, and speed of welding is 180 mm/min, the pure argon protection.Other step is identical with the specific embodiment one.Under the state before after welding treatment, strength of joint can reach 76% of strength of parent.Metallographic Analysis is the result show, generates a certain amount of block TiC replacement SiCp in the weld seam and plays humidification.
The specific embodiment 11: present embodiment adds the yttrium pellet of 0.3 millimeter thickness and does packing material, welding SiCp/6061Al composite, and welding current is 140 amperes, speed of welding is 180 mm/min, the pure argon protection.Other step is identical with the specific embodiment one.Under the state before after welding treatment, strength of joint can reach 68% of strength of parent.Metallographic Analysis is the result show, generates a certain amount of block YAl replacement SiCp in the weld seam and plays humidification.
The specific embodiment 12: present embodiment adopts nitrogen-argon mixture gas Combined Protection, and the SiCp/ZL101 aluminum matrix composite of 3 millimeters thick is carried out the TIG weldering, and welding current is 160 amperes, and speed of welding is 180 mm/min, and gas flow is 0.8m
3/ h.Other step is identical with the specific embodiment one.When nitrogen accounted for 40%, under the state before after welding treatment, weld strength can reach 71% of strength of parent.Metallographic Analysis is the result show, generates a certain amount of AlN replacement SiCp in the weld seam and plays humidification.
The specific embodiment 13: the above-mentioned specific embodiment nine, ten, 11,12 is carried out Ageing Treatment at postwelding, be about to weldment and be heated to 510～550 ℃ and be incubated 0.7～1.3 hour, then weldment being put into water cools off, be heated to 150～200 ℃ and be incubated 40～55 hours again, after insulation finishes with the weldment air cooling to room temperature, strength of joint can further improve, and reaches as high as 85% of strength of parent.
Claims (9)
1, a kind of non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position Enhancement Method is characterized in that its step is as follows: the packing material of one, preparing weld seam; Two, electromagnetic mixing apparatus is installed on welding gun; Three, downhand position, welding current are 140～170 amperes pulse current, and weldingvoltage is 16 volts; Pure argon or nitrogen-argon mixture gas protection, gas flow is 0.5～1.2 cubic metre/hour; Speed of welding is 180～210 mm/min; Four, after welding treatment; Weldment is heated to 510～550 ℃ and be incubated 0.7～1.3 hour, then weldment is put into water and cool off, be heated to 150～200 ℃ and be incubated 40～55 hours again, insulation after finishing gets final product weldment air cooling to room temperature.
2, non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position Enhancement Method according to claim 1 is characterized in that the percent by volume of described nitrogen-argon mixture gas is: nitrogen is 20～50%, argon gas is 50～80%.
3, non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position Enhancement Method according to claim 1, the packing material that it is characterized in that described weld seam is the tubulose flux-cored wire, the external diameter of flux cored wire is 1.2～1.6mm, tubing is that pure Al makes, the medicine core is made by weight percentage by the powder of following ingredients: Si:8～8.5%, Mg:0.5～0.8%, Ti:0.8～1.05, Y:0.3～0.5%, Sc:0.2～0.25%, SiCp:2%, KCl:0.5%, LiCl:0.8%, AlF:1%, surplus is the Al powder.
4, non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position Enhancement Method according to claim 3 is characterized in that the medicine core made by weight percentage by the powder of following ingredients: Si:6.5～7.5%, Mg:0.5～0.6%, Y:0.2～0.3%, Sc:0.4%, SiCp:3%, Y
2O
3: Ti:0.5% 5%,, surplus is the Al powder.
5, non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position Enhancement Method according to claim 3, it is characterized in that the medicine core made by weight percentage by the powder of following ingredients: Si:7%, Mg:6%, Y:2%, Sc:0.3%, SiCp:5%, KCl:0.5%, LiCl:0.8%, AlF 1%, surplus is the Al powder.
6, non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position Enhancement Method according to claim 3, it is characterized in that the medicine core made by weight percentage by the powder of following ingredients: titanium valve 40%, aluminium powder 55% and silica flour 5%, wherein the titanium valve composition is Wt%:Fe:0.11%, Ni:0.07%, C:0.03%, N:0.06%, O:0.1%, H:0.3%, Ca:0.02%, Si:0.05%, Cl:0.004%, and surplus is Ti.
7, non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position Enhancement Method according to claim 1; the packing material that it is characterized in that described weld seam is made for the Al-Si solid welding wire adds coating material, and coating material is SiC particle or the Al that accounts for the metallic particles that contains the rare earth yttrium of Al-Si solid welding wire weight 2～15% and account for Al-Si solid welding wire weight 3～5%
2O
3Particle mixes with bonding agent, is coated on the Al-Si solid welding wire surface.
8, non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position Enhancement Method according to claim 7 is characterized in that the described metallic particles that contains the rare earth yttrium is yttrium silicon or yttrium alumina particles.
9, non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position Enhancement Method according to claim 1, the packing material that it is characterized in that described weld seam is metal titanium sheet or rare earth metal yttrium pellet, and the thickness of metal titanium sheet or rare earth metal yttrium pellet is 0.2～0.4mm.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100581704C (en) * | 2008-05-28 | 2010-01-20 | 山东大学 | Filler wire argon tungsten arc process of super nickel/NiCr stacking compound material |
| CN102649190A (en) * | 2012-01-16 | 2012-08-29 | 上海交通大学 | Argon arc welding method of non-continuous reinforcement titanium-matrix composite material |
| CN103839845A (en) * | 2014-03-25 | 2014-06-04 | 哈尔滨工业大学 | Method for manufacturing high-temperature service low-resistance connector through induced reaction of silicon/metal energy-contained modulation film |
| CN105522253A (en) * | 2016-01-06 | 2016-04-27 | 江苏烁石焊接科技有限公司 | Device for realizing nitrogen increment on surface of steel by pre-laying nitride through nitrogen arc in-situ metallurgy |
| CN109676131A (en) * | 2019-01-23 | 2019-04-26 | 宁波合盛专用车辆有限公司 | A kind of welding method of aluminum matrix composite |
| CN111545917A (en) * | 2020-05-21 | 2020-08-18 | 河南理工大学 | Low-power laser-induced double-pulse TIG welding method for aluminum-based composite material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6054295A (en) * | 1983-09-05 | 1985-03-28 | Kubota Ltd | Build-up method by welding |
| CN1254345C (en) * | 2003-12-08 | 2006-05-03 | 哈尔滨工业大学 | Novel process of liquid phase impact diffusion welding for aluminium-based composite material |
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2005
- 2005-08-17 CN CNB2005100102665A patent/CN100396416C/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100581704C (en) * | 2008-05-28 | 2010-01-20 | 山东大学 | Filler wire argon tungsten arc process of super nickel/NiCr stacking compound material |
| CN102649190A (en) * | 2012-01-16 | 2012-08-29 | 上海交通大学 | Argon arc welding method of non-continuous reinforcement titanium-matrix composite material |
| CN102649190B (en) * | 2012-01-16 | 2015-10-28 | 上海交通大学 | The argon arc welding welding method of discontinuous reinforcement titanium matrix composite |
| CN103839845A (en) * | 2014-03-25 | 2014-06-04 | 哈尔滨工业大学 | Method for manufacturing high-temperature service low-resistance connector through induced reaction of silicon/metal energy-contained modulation film |
| CN103839845B (en) * | 2014-03-25 | 2016-06-08 | 哈尔滨工业大学 | Silicon/metal is containing the method can modulated film induced reaction and prepare high-temperature service low resistance joint |
| CN105522253A (en) * | 2016-01-06 | 2016-04-27 | 江苏烁石焊接科技有限公司 | Device for realizing nitrogen increment on surface of steel by pre-laying nitride through nitrogen arc in-situ metallurgy |
| CN105522253B (en) * | 2016-01-06 | 2018-06-29 | 江苏烁石焊接科技有限公司 | A kind of nitrogen arc in-situ metallurgical is laid with the device that nitride realizes steel surface nitrogen pick-up in advance |
| CN109676131A (en) * | 2019-01-23 | 2019-04-26 | 宁波合盛专用车辆有限公司 | A kind of welding method of aluminum matrix composite |
| CN109676131B (en) * | 2019-01-23 | 2021-02-19 | 宁波合盛新材料有限公司 | Welding method of aluminum-based composite material |
| CN111545917A (en) * | 2020-05-21 | 2020-08-18 | 河南理工大学 | Low-power laser-induced double-pulse TIG welding method for aluminum-based composite material |
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| CN100396416C (en) | 2008-06-25 |
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Assignee: TCL Ruizhi (Huizhou) Refrigeration Equipment Co.,Ltd. Assignor: Harbin Institute of Technology Contract record no.: 2011440000030 Denomination of invention: Non-continuous reinforced aluminium-based composite material tungsten electrode argon-arc welding seam original position reinforcement method Granted publication date: 20080625 License type: Exclusive License Open date: 20060208 Record date: 20110120 |