CN106735805A - A kind of method that solid State Welding is carried out using contact resistance - Google Patents
A kind of method that solid State Welding is carried out using contact resistance Download PDFInfo
- Publication number
- CN106735805A CN106735805A CN201611199016.5A CN201611199016A CN106735805A CN 106735805 A CN106735805 A CN 106735805A CN 201611199016 A CN201611199016 A CN 201611199016A CN 106735805 A CN106735805 A CN 106735805A
- Authority
- CN
- China
- Prior art keywords
- welding
- contact
- contact resistance
- solid state
- end surface
- 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.)
- Granted
Links
Classifications
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention provides a kind of method that solid State Welding is carried out using contact resistance, it fixes welding both ends of the surface contact, and keeps the constant contact stress of 0.1 ~ 100 MPa, and two ends are powered, 1 ~ 100A/mm2 of current density range, heat welding end surface is produced using contact resistance；After welding end surface temperature is raised, both ends of the surface distance is pulled open 0.1 ~ 2mm by separated contact surfaces, produces electric arc to continue 1 ~ 10 second；Both ends of the surface are compressed at once after sustained arc, the compress variation of section bar controls the turn-off current after 0.1 ~ 5mm, compression, persistently keeps 1 ~ 20 second time, completes welding.To realize welding quality and to seam organization, the double shield of matrix consumption control, meet strong mechanical performance, the requirement of high dimensional accuracy welded unit.The invention belongs to welding technology field.
Description
Technical field
The present invention relates to a kind of solid welding method, belong to welding technology field.
Background technology
The welding of metal material can be divided into two kinds of fusion welding and solid-state welding from appearance of weld feature, and wherein fusion welding is in weld seam
Place's metal can be liquefied, and form molten bath, and welding is completed after liquefaction metal cooling, due to the cooling for having liquefaction metal, therefore
Such welded seam is as cast condition arborescent structure, is differed greatly with matrix, and uniformity is poor, such as argon arc welding, arc welding, acetylene
Flame welding etc., what is had even needs addition solder, causes its structural constituent all in uneven state.
And solid State Welding is a kind of method under solid states by heating welding end surface and welding is completed by pressure,
Because weld seam does not liquefy metal, have the advantages that in many structure properties with respect to welding technology.It is common in solid State Welding to be
Friction welding (FW), flash welding, electric resistance welding, this kind of welding does not need typically solder, weld seam without liquefaction metal, to organize basic with composition substantially
It is consistent with matrix, used in some high performance requirements welded units at present.
Wherein：（1）Friction welding is higher to equipment dynamic requirement, relatively complicated, is of limited application.（2）Flash of light
Welding produces explosion, therefore the consumption matrix material that can constantly be glistened in its heating process due to forming high energy arc in end face,
On the one hand the waste of valuable matrix material, on the other hand its more difficult control of explosion consumption, therefore its dimension control are caused
It is more difficult.（3）Electric resistance welding is powered after one kind compresses two ends, using the resistance heat production of matrix, then completes welding.But electricity
Welding resistance has two important drawbacks：On the one hand, because welding requirements heat is higher, after energization, the material in the middle of holding electrode will all
It is heated, wider which results in heat affected area, low performance area is obvious；On the other hand, because welding end surface is in impaction state,
Some dirts of welding end surface in heating process, the more difficult exclusion of metal oxide formed in heating process, therefore easily
The interface of segmentation matrix is formed in commissure, causes postwelding mechanical property poor.
Therefore, in order to meet high-quality welding requirements, it is necessary to develop a kind of quality advantage with solid State Welding, and
The technical scheme that seam organization, matrix consumption can be achieved effective control.Meet strong mechanical performance, high dimensional accuracy welded unit
Requirement.
The content of the invention
It is an object of the invention to：A kind of method that solid State Welding is carried out using contact resistance is provided, to realize to welding
Quality and to seam organization, the double shield of matrix consumption control, meets strong mechanical performance, high dimensional accuracy welded unit will
Ask.
To solve the above problems, the method that plan carries out solid State Welding using such a using contact resistance：
Principle and requirement according to solid State Welding, on the one hand need enough heats, and on the one hand needs have necessarily in welding end surface
Pressure there is certain strain.Welded unit both sides are clamped, welding end surface contact close to each other, by strain gauge,
The size of proof stress ensures its contact condition, and typically contacting compression according to different materials is maintained at 0.1 ~ 100 MPa models
Enclose, be not required to allow component two ends to compress, be then electrified to, this scheme to electric current without selection, can indirect current or direct current, electric current is close
1 ~ 100A/mm of degree scope2.The position that Member Welding end face contacts with each other begins to warm up in the presence of contact resistance, due to end
Face contact resistance is big, therefore occur that contact jaw kept man of a noblewoman first reaches temperature higher, it is to avoid the component between two holding electrodes
Temperature very high all is heated to simultaneously, causes heat affected area to become big.
Electric current is 5 ~ 120 seconds by time range, after rising to high temperature with temperature, contact stress is set into 0, will two
End face distance is controlled in 0.1 ~ 2mm scope spacing, and now due to not powering off, air is ionized to form electricity in gap between both ends of the surface
Arc, high arc temperature will act at end face, cause the oxide that original end face is formed in high temperature by burning-off, and by electric-arc gasification
Metallic vapour can form steam protection layer to end face and carry out anti-oxidation, at once will welding after 1 ~ 10 second in lasting generation electric arc
Component both ends of the surface force together.Because metal stresses and strain have relevance, can be by deflection come control pressure size, pressure
Compression deformation amount, in 0.1 ~ 5mm scopes, turns off electric current according to the different control of welded unit after compression, kept for 1 ~ 20 second time be
Can relaxation pressure, completion welding.
Compared with prior art, the present invention reduces heat affected area scope, by control member by controlling heating interval
End face distance；Formation electric arc realizes the cleaning to welding end surface；By controlling compress variation, realize to weldment size
Accurate control.
Brief description of the drawings
Fig. 1 is the weld seam metallograph of φ 8mm nickel alloy bars welding.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, invention will be made further to retouch in detail below
State.
Embodiment 1：
φ 8mm nickel alloy bars are welded
Bar is clamped on electrode respectively, the compression of relative holding 1MPa, by electric current, about 10A/mm2, keeping heating
After about 20 seconds, two ends are separated, produce electric arc about 3 seconds or so, then be tightly pressed together, control deformation forms crator in 2mm,
Welding is completed, the metallographic of weld seam is significantly plastically deformed vestige as shown in figure 1, wherein having, and is equi-axed crystal, but without as cast condition
Tissue.
Embodiment 2：φ 10mm aluminium alloys bar is welded
Bar is clamped on electrode respectively, the relative compression for remaining less than 3MPa, by electric current, about 3A/mm2, kept
After heating about 5 seconds, two ends are separated, produce electric arc about 2 seconds or so, then be tightly pressed together, then control deformation powers off in 1mm
Compress 5 seconds afterwards, form crator, complete welding.
Claims (2)
1. a kind of method that solid State Welding is carried out using contact resistance, it is characterised in that step is as follows：
Welding both ends of the surface contact is fixed, and keeps the constant contact stress of 0.1 ~ 100 MPa, two ends are powered, current density model
Enclose 1 ~ 100A/mm2, heat welding end surface is produced using contact resistance；
After welding end surface temperature is raised, both ends of the surface distance is pulled open 0.1 ~ 2mm by separated contact surfaces, so that intermediate air is ionized, is produced
Raw electric arc continues 1 ~ 10 second, is used to burn intermediate oxide layer；
After burning intermediate oxide layer, quickly both ends of the surface are compressed in electric arc duration, the compress variation of section bar is controlled 0.1
~ 5mm, turn-off current after compression persistently keeps 1 ~ 20 second time, completes welding.
2. a kind of method that solid State Welding is carried out using contact resistance according to claim 1, it is characterised in that：Welded unit
Two ends are persistently powered 5 ~ 120 seconds in the case where contact condition is kept, and then separated contact surfaces produce electric arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199016.5A CN106735805B (en) | 2016-12-22 | 2016-12-22 | A method of solid State Welding is carried out using contact resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199016.5A CN106735805B (en) | 2016-12-22 | 2016-12-22 | A method of solid State Welding is carried out using contact resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106735805A true CN106735805A (en) | 2017-05-31 |
| CN106735805B CN106735805B (en) | 2019-04-02 |
Family
ID=58897796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611199016.5A Active CN106735805B (en) | 2016-12-22 | 2016-12-22 | A method of solid State Welding is carried out using contact resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106735805B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872574A (en) * | 2021-01-08 | 2021-06-01 | 固达电线电缆(集团)有限公司 | Copper component welding method and device |
| CN113547193A (en) * | 2021-08-06 | 2021-10-26 | 贵州电网有限责任公司 | Solid-state welding method and device for weather-resistant steel section |
| CN114101938A (en) * | 2021-12-06 | 2022-03-01 | 贵州大学 | Preheating method and laser welding method for bolt and fixing piece |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040110893A (en) * | 2003-06-20 | 2004-12-31 | 주식회사 포스코 | Flash butt welding method of titanium added low carbonic steel |
| CN102107320A (en) * | 2010-12-30 | 2011-06-29 | 首钢总公司 | Pulsed switch-on preheating flash butt welding process for steel rims of heavy trucks |
| CN103252567A (en) * | 2013-04-23 | 2013-08-21 | 宁夏东方钽业股份有限公司 | Method for welding large-size tantalum strips |
| CN105458623A (en) * | 2015-12-04 | 2016-04-06 | 顾伟 | Welding production technology for R4-level anchor chain |
| CN106112241A (en) * | 2016-06-24 | 2016-11-16 | 江苏省沙钢钢铁研究院有限公司 | Flash welding method for high-corrosion-resistance high-strength steel bar |
-
2016
- 2016-12-22 CN CN201611199016.5A patent/CN106735805B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040110893A (en) * | 2003-06-20 | 2004-12-31 | 주식회사 포스코 | Flash butt welding method of titanium added low carbonic steel |
| CN102107320A (en) * | 2010-12-30 | 2011-06-29 | 首钢总公司 | Pulsed switch-on preheating flash butt welding process for steel rims of heavy trucks |
| CN103252567A (en) * | 2013-04-23 | 2013-08-21 | 宁夏东方钽业股份有限公司 | Method for welding large-size tantalum strips |
| CN105458623A (en) * | 2015-12-04 | 2016-04-06 | 顾伟 | Welding production technology for R4-level anchor chain |
| CN106112241A (en) * | 2016-06-24 | 2016-11-16 | 江苏省沙钢钢铁研究院有限公司 | Flash welding method for high-corrosion-resistance high-strength steel bar |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872574A (en) * | 2021-01-08 | 2021-06-01 | 固达电线电缆(集团)有限公司 | Copper component welding method and device |
| CN112872574B (en) * | 2021-01-08 | 2022-04-29 | 固达电线电缆(集团)有限公司 | Copper component welding method and device |
| CN113547193A (en) * | 2021-08-06 | 2021-10-26 | 贵州电网有限责任公司 | Solid-state welding method and device for weather-resistant steel section |
| CN114101938A (en) * | 2021-12-06 | 2022-03-01 | 贵州大学 | Preheating method and laser welding method for bolt and fixing piece |
| CN114101938B (en) * | 2021-12-06 | 2024-05-14 | 贵州大学 | Preheating method and laser welding method for bolt and fixing piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106735805B (en) | 2019-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106735805A (en) | A kind of method that solid State Welding is carried out using contact resistance | |
| CN109605039A (en) | A kind of electric arc increasing material and electric auxiliary hot rolling forming composite manufacturing method and device | |
| CN101596642A (en) | Method for resistance welding and Welding Structure | |
| CN101264541A (en) | Additional electric arc heating copper backing board pre-heating aluminum alloy and magnesium alloy welding method | |
| CN104028603A (en) | Heterogeneous material tailor-welded blank hot stamping forming device and method with controllable temperature field | |
| CN101972889B (en) | Cold-pressure welding process for deformed zinc aluminum alloy rods | |
| CN103406415A (en) | Current-assisted rapid hot forming device and method for long and thin high-strength-steel structural components | |
| CN109202243B (en) | Intermediate layer alloy for tantalum/stainless steel energy storage welding and preparation method and welding method thereof | |
| CN106312218B (en) | The method being locally quickly brazed using a kind of pulse current auxiliary from resistance heating device | |
| CN103252567A (en) | Method for welding large-size tantalum strips | |
| CN101468420A (en) | Hollow stud composite turn arc heat source welding method | |
| CN201904937U (en) | Combined electrode self-baking device capable of unshelling for large submerged arc furnace | |
| CN101740987A (en) | Solid-state welding production method of high-performance conducting rod | |
| CN104139244A (en) | Single-face traceless welding method for stainless steel panels | |
| CN109365970B (en) | Ultrasonic seam welding and resistance internal heat combined metal seam welding device | |
| CN103521997B (en) | The method of quick repairing alloy bearing shell | |
| CN101758361B (en) | Method for repairing U-shaped metal thin-wall pipe by applying laser and micro-arc spark composite technology | |
| CN103406642A (en) | Cold-welding restoring method for tooth surface notches of presser iron-casting press roll shell | |
| CN104625371A (en) | Method for forming beta-phase titanium alloy large-cross-section ring piece through flash welding | |
| KR20180101744A (en) | Hot stamping steel sheet projection hardware welding method | |
| Zhou et al. | Constant current induction brazing process optimization of AgCdO15-Cu electrical contact | |
| CN102056359A (en) | Large submerged arc furnace combined self-baking electrode device capable of removing housing and use method thereof | |
| CN101670488A (en) | Laser welding method of noble metal spark plug electrode | |
| CN113732478A (en) | Electric welding forming method for large-size amorphous alloy and block amorphous alloy | |
| CN111590188A (en) | Current-assisted pressure solid-state welding method for nut and metal plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230113 Address after: Kaifa Avenue, Guiyang Economic and Technological Development Zone, Guizhou Province Patentee after: Guiyang Daewoo Aviation Materials Engineering Co.,Ltd. Address before: Science and Technology Office, North Campus of Guizhou University, Guiyang City, Guizhou Province, 550025 Patentee before: Guizhou University |