CN103506776A - Novel welding technique for hammering and forging high-temperature welding line - Google Patents
Novel welding technique for hammering and forging high-temperature welding line Download PDFInfo
- Publication number
- CN103506776A CN103506776A CN201210208466.1A CN201210208466A CN103506776A CN 103506776 A CN103506776 A CN 103506776A CN 201210208466 A CN201210208466 A CN 201210208466A CN 103506776 A CN103506776 A CN 103506776A
- Authority
- CN
- China
- Prior art keywords
- hammering
- temperature
- welding
- servo
- forging
- 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.)
- Pending
Links
Images
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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
- B23K37/0229—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track the guide member being situated alongside the workpiece
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a novel welding technique for hammering and forging a high-temperature welding line. The novel welding technique for hammering and forging the high-temperature welding line relates to a working table, a stand column, a track cross beam, a servo trolley, elastic cushion blocks, a control cabinet and a pneumatic source. The novel welding technique for hammering and forging the high-temperature welding line is characterized in that an electric welding gun, a gas gun, an heat insulation cover plate and at least one pneumatic impact hammer are installed on the servo trolley and can move in a servo mode on the track cross beam under the control of the control cabinet, and a welding part is fixed on the working table through the elastic cushion blocks. According to the novel welding technique for hammering and forging the high-temperature welding line, the surface of the welding line which is just welded is heated through the gas gun during welding, a weld microstructure in the high-temperature state is hammered and forged contentiously through the at least one pneumatic impact hammer, and finally normalizing treatment is automatically carried out on the hammered and forged weld microstructure after heat insulation is carried out on the hammered and forged weld microstructure in the servo moving process of the heat insulation cover plate. The novel welding technique for hammering and forging the high-temperature welding line has the advantages that the structural compactness of the welding area of a component can be improved, welding stress deformation is reduced, residual stress is relieved, and high-carbon steel and alloy steel can be widely applied to the welding field.
Description
Technical field
The invention belongs to metal welding techniques new technology field, specifically a kind of welding technology of hammering forging high-temperature weld seam.
Background technology
As everyone knows, metal welding techniques is in machine-building, shipbuilding, control the industries such as gold, transportation, chemical industry, electric power and be used widely, hardware is after welding, on welded seam area surface and inner meeting, produce fine crack and bubble, and have the defect that metallic gold phase constitution density is loose and metal combination property reduces, affect serviceability, machining accuracy and the dimensional stability of structure, the qualification rate that reduces product is easily directed at the generation of malicious event in mechanical use procedure.Therefore, for a long time, Chinese scholars is constantly explored for problems such as the stress deformation producing in welding process, crackle, bubble and residual stress, and has obtained many control methods and achievement in research, as ultrasonic impact method Chinese Patent Application No. 201010593757.8; Oscillating aging Chinese Patent Application No. 200710035968.8; Though vibration welding technology Chinese Patent Application No. 99106598.0 grades are all playing certain effect aspect elimination weldment residual stress, but all there is many limitation and weak point, though heat treatment method has obtained generally application, large scale special-shaped member cannot be heat-treated elimination residual stress because the volume of member and shape limit.
Summary of the invention:
The welding technology that the object of this invention is to provide a kind of hammering forging high-temperature weld seam, this welding technology can overcome the shortcoming that known weldment goes residual stress to process, can reach refinement welded seam area metallic gold phase constitution crystal grain, eliminate residual stress, effectively prevent the generation of weld crack and bubble, mechanical property and the machining property of welded seam area have been improved, solve large scale special-shaped weldment and can not heat-treat elimination residual stress problems, the present invention can play heat treating process, ultrasonic impact method, oscillating aging and the superimposed effect of vibration welding technology treatment effect, and increased welded seam area metallic gold phase constitution density, reduced welding stress deformation tendency, high-carbon steel and steel alloy are used widely at welding field, and processing can be repaired and correct to the crackle and the stress deformation that for weldment, produce.
The object of the present invention is achieved like this, it includes workbench, column, track cross beam, servo dolly, elastic cushion block, control cabinet, pneumatic source, wherein on servo dolly, electric torch is installed, bluster is robbed, heat-preserving cover plate and have a pneumatic striking mechanism at least, and control by control cabinet, make it in track servo movement on crossbeam, weldment is fixedly placed on workbench by elastic cushion block, pneumatic striking mechanism provides power by pneumatic source, it is characterized in that: the weld seam being just soldered is heated to forging temperature, again by having a seam organization under the continuous hammering forging high-temperature of pneumatic striking mechanism state at least, seam organization packing is increased, crackle and bubble reduce, welding stress deformation reduces, and under the hammering forging of jump bit and the supporting function of elastic cushion block, weldment produces irregular vibration, eliminated residual stress, seam organization after finally automatically hammering being forged in the servo movement of heat-preserving cover plate is made normalized treatment.Its concrete technology is as follows:
(1) under above-mentioned control cabinet is controlled, servo dolly drives electric torch, bluster rifle, heat-preserving cover plate and has a pneumatic striking mechanism at least on track cross beam in servo movement, and also the track to be welded along weldment moves;
(2) after welding starts, first by electric torch, on weldment, work and form weld seam, and servo movement forward, then by bluster rifle, the welded seam area just having formed is heated to forging temperature, then by having a welded seam area under the continuous hammering forging high-temperature of pneumatic striking mechanism state at least;
(3) last under the servo movement and insulation effect of heat-preserving cover plate, exposed naturally cooling in air during the weld seam slow cooling to 400 that hammering was forged ℃.
According to the needs that use, to the welded seam area just having formed, can adopt the heating of bluster rifle or liquid fuel spray gun heating means; To being heated to the high temperature welded seam area of forging temperature, can being taken to a rare pneumatic striking mechanism or having at least an electrical impact hammer to carry out hammering forging; When adopting several pneumatic striking mechanisms, it is different that several jump bits act on the hammering frequency of face of weld, and its result should make weldment not produce resonance.
After member has all welded, can also have at least again a butt welded seam region to be heated to forging temperature, carry out postwelding hammering forging high-temperature seam organization, this place's weld seam when heat-preserving cover plate is carried out lid, slow cooling to 400 ℃ in air natural cooling processing.The stress deformation amount that above-mentioned postwelding hammering forging high-temperature weld seam and insulation number of processes produce in welding process according to weldment determines, with the stress deformation all weldment being produced, is corrected as benchmark.
The present invention can reach increases member welding joints regional metal metallographic structure density, crystal grain thinning, improve mechanical property and the machining property of welded seam area, reduced the distortion tendency of welding stress, eliminated part residual stress, effectively prevent the generation of weld crack and bubble, solved large scale special-shaped weldment and can not heat-treat the problem of eliminating residual stress.Can allow high-carbon steel and steel alloy be used widely at welding field, have technique simple, easy to manufacture, easy to maintenance, cost is low, benefit advantages of higher.
Accompanying drawing explanation
Fig. 1 is the simple diagram of the welding technology device of a kind of hammering forging high-temperature weld seam of proposition according to the present invention.
To the present invention, be described in further detail by example below, but following example is only the example in the present invention, does not represent the rights protection scope that the present invention limits.The scope of the present invention is as the criterion with claims.
The specific embodiment
Example:
Shown in accompanying drawing 1, in figure, [1] is workbench, and [2] are column, and [3] are track cross beam, and [4] are servo dolly, [5] be electric torch, [6] are bluster rifle, and [7] are pneumatic striking mechanism, and [8] are heat-preserving cover plate, [9] be elastic cushion block, [10] are control cabinet, and [11] are pneumatic source, and [12] are weldment; Track cross beam [3] is fixedly connected with workbench [1] by column [2]; Weldment [12] is fixed on workbench [1] by elastic cushion block [9] support; Electric torch [5], bluster rifle [6], pneumatic striking mechanism [7] and heat-preserving cover plate [8] are fixedly mounted on servo dolly [4], and controlled by control cabinet [10], make its on track cross beam [3] servo mobile simultaneously, also along the trace track to be welded on weldment [12], move; After welding starts, first by electric torch [5], in the upper work of weldment [12], form weld seam servo movement forward, by bluster rifle [6], the welded seam area just having formed is heated to forging temperature again, the continuous hammering forging high-temperature welded seam area of several pneumatic striking mechanisms [7] then, weld seam after hammering is forged is carried out under lid in servo movement and the insulation of heat-preserving cover plate [8], depart from covering with heat-preserving cover plate [8] during slow cooling to 400 ℃, exposed naturally cooling in air.
While being wherein arranged on bluster rifle [6] heating on servo dolly [4], should control the flow of combustion gas, and the nozzle of this bluster rifle [6] and face of weld distance are adjustable, make the weld seam just having welded be heated to required forging temperature in the servo movement of bluster rifle [6]; Being arranged on several pneumatic striking mechanisms [7] on servo dolly should press the thickness of weld seam and adjust hammer force, and these several pneumatic striking mechanisms [7] are installed with servo dolly [4] bumper and absorbing shock in ballistic motion direction, the seam organization of continuous hammering forging high-temperature under the effect of pneumatic source [11], welded seam area metallic gold phase constitution packing is increased, refinement crystal grain, eliminate weld crack and bubble, and reduced welding stress deformation; Under the supporting function of the continuous hammering forging of several pneumatic striking mechanisms [7] and elastic cushion block [9], weldment [12] produces irregular vibration, has eliminated part residual stress; The shoe lid length that is arranged on the heat-preserving cover plate [8] on servo dolly can regulate automatically, heat-preserving cover plate [8] is carried out the welded seam area after lid insulation hammering is forged in servo dolly [4] is above controlled servo moving process by control cabinet [10], when departing from, slow cooling to 400 ℃ Shi Yugaidian position in some positions of welded seam area carries out lid, Shi Gaidian position weld seam is exposed naturally cooling in air, the welded seam area spot annealing that is equivalent to weldment is processed, reach mechanical property and the machining property of having improved welded seam area, thereby realize the object of the invention.
Claims (7)
1. the welding technology of a hammering forging high-temperature weld seam, it includes workbench [1], column [2], track cross beam [3], servo dolly [4], elastic cushion block [9], control cabinet [10], pneumatic source [11], it is characterized in that: electric torch [5] is installed on servo dolly [4], bluster rifle [6], heat-preserving cover plate [8] and have a pneumatic striking mechanism [7] at least, and control by control cabinet [10], make it in the upper servo movement of track cross beam [3], weldment is fixedly placed on workbench [1] by elastic cushion block [9] support, pneumatic striking mechanism [7] provides power by pneumatic source [11], concrete technology is as follows: (1) is under control cabinet [10] is controlled, servo dolly [4] drives electric torch [5], bluster rifle [6], heat-preserving cover plate [8] and have a pneumatic striking mechanism [7] at least in the upper servo movement of track cross beam [3], also the seam track along weldment [12] moves,
(2) after welding starts, first by electric torch [5], in the upper work of weldment [12], form weld seam servo movement forward, by bluster rifle [6], the welded seam area just having formed is heated to forging temperature again, then by having the constantly welded seam area of hammering forging high-temperature of a pneumatic striking mechanism [7] at least;
(3) finally in the shoe lid insulation and servo moving process of heat-preserving cover plate [8], during some positions of the weld seam slow cooling to 400 being forged by hammering ℃, with heat-preserving cover plate [8] disengaging covering and heat insulating, exposed in air natural cold process.
2. the welding technology of a kind of hammering forging high-temperature weld seam according to claim 1, during its feature: the flow that is arranged on bluster rifle [6] combustion gas on servo dolly [4] is adjustable with the distance of this bluster rifle [6] nozzle and face of weld, and its result should guarantee that the weld seam just having welded is heated to required forging temperature in its servo movement.
3. the welding technology of a kind of hammering forging high-temperature weld seam according to claim 1, be characterized in: the hammer force that has a pneumatic striking mechanism [7] at least being arranged on servo dolly [4] is adjustable, and this jump bit [7] is installed in ballistic motion direction and servo dolly [4] bumper and absorbing shock.
4. the welding technology of a kind of hammering forging high-temperature weld seam according to claim 1, it is characterized in that: its shoe lid insulation length of heat-preserving cover plate [8] being arranged on servo dolly [4] should regulate automatically, its result should guarantee that heat-preserving cover plate [8] is in servo mobile insulating process, during some positions of the welded seam area slow cooling to 400 after hammering is forged ℃, it is exposed naturally cooling in air that Yu Gaidian position departs from covering and heat insulating ，Shi Gaidian position.
5. the welding technology of a kind of hammering forging high-temperature weld seam according to claim 1, it is characterized in that: when adopting several pneumatic striking mechanisms [7], it is different that several jump bits [7] act on the hammering frequency of face of weld, and its result should make weldment not produce resonance.
6. the welding technology of a kind of hammering forging high-temperature weld seam according to claim 1, is characterized in that: according to the needs that use, to the welded seam area just having formed, can adopt bluster rifle [6] heating or liquid fuel spray gun heating means; To being heated to the high temperature welded seam area of forging temperature, can being taken to a rare pneumatic striking mechanism [7] or having at least an electrical impact hammer to carry out hammering forging.
7. the welding technology of a kind of hammering forging high-temperature weld seam according to claim 1, it is characterized in that: also can be after member has all welded, have at least again a butt welded seam region to be heated to forging temperature and carry out postwelding hammering forging high-temperature seam organization, this place's weld seam when heat-preserving cover plate [8] is carried out the lower slow cooling to 400 of lid ℃ in air natural cooling processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208466.1A CN103506776A (en) | 2012-06-25 | 2012-06-25 | Novel welding technique for hammering and forging high-temperature welding line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208466.1A CN103506776A (en) | 2012-06-25 | 2012-06-25 | Novel welding technique for hammering and forging high-temperature welding line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103506776A true CN103506776A (en) | 2014-01-15 |
Family
ID=49890487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210208466.1A Pending CN103506776A (en) | 2012-06-25 | 2012-06-25 | Novel welding technique for hammering and forging high-temperature welding line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103506776A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289831A (en) * | 2014-08-19 | 2015-01-21 | 台山核电合营有限公司 | Welding with trailing peening stress eliminating method of large nuclear power steel structure |
| CN104369163A (en) * | 2014-10-30 | 2015-02-25 | 成都聚智工业设计有限公司 | Hammering device |
| CN106180006A (en) * | 2016-08-31 | 2016-12-07 | 上海史密富智能装备股份有限公司 | Amorphous alloy iron core automatic detection device and detection method thereof |
| CN106884086A (en) * | 2017-02-17 | 2017-06-23 | 燕山大学 | The device and technique of a kind of bilateral flame heating removal submerged arc pipe weld residual stress |
| CN106994577A (en) * | 2017-04-19 | 2017-08-01 | 重庆佛思坦智能装备有限公司 | A kind of mould 3D built-up welding intelligent robots |
| CN107723428A (en) * | 2017-11-27 | 2018-02-23 | 上海日港置信非晶体金属有限公司 | A kind of destressing devices and methods therefor |
| CN108221517A (en) * | 2016-12-22 | 2018-06-29 | 上海工程技术大学 | For the profiling positioning device of fixed intermediate frequency sensing heating normalizing transformer |
| CN108950173A (en) * | 2018-08-10 | 2018-12-07 | 燕山大学 | A kind of device and technique of online induction heating removal straight seam welded pipe residual stress |
| CN110744172A (en) * | 2019-10-24 | 2020-02-04 | 江南大学 | Electric arc additive stroke-limited high-frequency micro-forging impact strengthening forging head, device and method |
| CN111941074A (en) * | 2020-08-18 | 2020-11-17 | 阿萨蒙特微创(北京)科技有限公司 | Micro-forging-welding process and equipment |
| CN113084379A (en) * | 2021-04-07 | 2021-07-09 | 中车青岛四方机车车辆股份有限公司 | Device and method for regulating and controlling residual stress and deformation after welding |
| CN114082802A (en) * | 2021-10-12 | 2022-02-25 | 南京瑞泰金属材料制品有限公司 | Overlap welding and forging deformation composite forming method |
| CN114918577A (en) * | 2022-04-13 | 2022-08-19 | 宁波明讯实业有限公司 | Single-side welding device for new energy automobile combined tail lamp support |
| CN116618956A (en) * | 2023-07-21 | 2023-08-22 | 长沙市雷锋重型锻造有限公司 | Welding device for hammering and forging welding seam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2344549A (en) * | 1998-12-02 | 2000-06-14 | Siemens Plc | Welding method for two different types of steel |
| CN2709083Y (en) * | 2004-07-19 | 2005-07-13 | 河北农业大学 | Parameter-adjustable welding-following hammering device |
| CN101890603A (en) * | 2010-08-12 | 2010-11-24 | 哈尔滨工业大学 | Device for trimming weld with trailing impact rolling of high-strength low-matching equivalent-load welding joint |
| CN101905402A (en) * | 2010-08-17 | 2010-12-08 | 哈尔滨工业大学 | Electromagnetic induction heating auxiliary welding line shaping device with impact grinding during welding |
| CN102002581A (en) * | 2010-12-17 | 2011-04-06 | 南车长江车辆有限公司 | Method for eliminating residual stress in welding by ultrasonic peening and use thereof |
-
2012
- 2012-06-25 CN CN201210208466.1A patent/CN103506776A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2344549A (en) * | 1998-12-02 | 2000-06-14 | Siemens Plc | Welding method for two different types of steel |
| CN2709083Y (en) * | 2004-07-19 | 2005-07-13 | 河北农业大学 | Parameter-adjustable welding-following hammering device |
| CN101890603A (en) * | 2010-08-12 | 2010-11-24 | 哈尔滨工业大学 | Device for trimming weld with trailing impact rolling of high-strength low-matching equivalent-load welding joint |
| CN101905402A (en) * | 2010-08-17 | 2010-12-08 | 哈尔滨工业大学 | Electromagnetic induction heating auxiliary welding line shaping device with impact grinding during welding |
| CN102002581A (en) * | 2010-12-17 | 2011-04-06 | 南车长江车辆有限公司 | Method for eliminating residual stress in welding by ultrasonic peening and use thereof |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289831A (en) * | 2014-08-19 | 2015-01-21 | 台山核电合营有限公司 | Welding with trailing peening stress eliminating method of large nuclear power steel structure |
| CN104369163A (en) * | 2014-10-30 | 2015-02-25 | 成都聚智工业设计有限公司 | Hammering device |
| CN106180006B (en) * | 2016-08-31 | 2023-07-07 | 上海史密富智能装备股份有限公司 | Amorphous alloy iron core automatic detection device and detection method thereof |
| CN106180006A (en) * | 2016-08-31 | 2016-12-07 | 上海史密富智能装备股份有限公司 | Amorphous alloy iron core automatic detection device and detection method thereof |
| CN108221517A (en) * | 2016-12-22 | 2018-06-29 | 上海工程技术大学 | For the profiling positioning device of fixed intermediate frequency sensing heating normalizing transformer |
| CN108221517B (en) * | 2016-12-22 | 2023-10-20 | 上海工程技术大学 | Profiling positioning device for fixing medium-frequency induction heating normalizing transformer |
| CN106884086A (en) * | 2017-02-17 | 2017-06-23 | 燕山大学 | The device and technique of a kind of bilateral flame heating removal submerged arc pipe weld residual stress |
| CN106884086B (en) * | 2017-02-17 | 2018-04-03 | 燕山大学 | A kind of bilateral flame heating removes the device and technique of submerged arc pipe weld residual stress |
| CN106994577A (en) * | 2017-04-19 | 2017-08-01 | 重庆佛思坦智能装备有限公司 | A kind of mould 3D built-up welding intelligent robots |
| CN106994577B (en) * | 2017-04-19 | 2018-09-28 | 重庆佛思坦智能装备有限公司 | A kind of mold 3D built-up welding intelligent robots |
| CN107723428A (en) * | 2017-11-27 | 2018-02-23 | 上海日港置信非晶体金属有限公司 | A kind of destressing devices and methods therefor |
| CN108950173B (en) * | 2018-08-10 | 2019-06-21 | 燕山大学 | A kind of device and technique of online induction heating removal straight seam welded pipe residual stress |
| CN108950173A (en) * | 2018-08-10 | 2018-12-07 | 燕山大学 | A kind of device and technique of online induction heating removal straight seam welded pipe residual stress |
| CN110744172A (en) * | 2019-10-24 | 2020-02-04 | 江南大学 | Electric arc additive stroke-limited high-frequency micro-forging impact strengthening forging head, device and method |
| CN111941074A (en) * | 2020-08-18 | 2020-11-17 | 阿萨蒙特微创(北京)科技有限公司 | Micro-forging-welding process and equipment |
| CN113084379A (en) * | 2021-04-07 | 2021-07-09 | 中车青岛四方机车车辆股份有限公司 | Device and method for regulating and controlling residual stress and deformation after welding |
| CN114082802A (en) * | 2021-10-12 | 2022-02-25 | 南京瑞泰金属材料制品有限公司 | Overlap welding and forging deformation composite forming method |
| CN114082802B (en) * | 2021-10-12 | 2024-04-26 | 南京瑞泰金属材料制品有限公司 | Overlap welding and forging deformation composite forming method |
| CN114918577A (en) * | 2022-04-13 | 2022-08-19 | 宁波明讯实业有限公司 | Single-side welding device for new energy automobile combined tail lamp support |
| CN116618956A (en) * | 2023-07-21 | 2023-08-22 | 长沙市雷锋重型锻造有限公司 | Welding device for hammering and forging welding seam |
| CN116618956B (en) * | 2023-07-21 | 2023-10-13 | 长沙市雷锋重型锻造有限公司 | Welding device for hammering and forging welding seam |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103506776A (en) | Novel welding technique for hammering and forging high-temperature welding line | |
| CN100523230C (en) | Method of increasing toughness of heat-affected part of steel product welded joint | |
| Sun et al. | Effect of pulse frequency on microstructure and properties of welded joints for dual phase steel by pulsed laser welding | |
| Wang et al. | Effect of interpass temperature on the microstructure and mechanical properties of multi-pass weld metal in a 550-MPa-grade offshore engineering steel | |
| Razmpoosh et al. | Microstructure and dynamic tensile characteristics of dissimilar fiber laser welded advanced high strength steels | |
| CN104531979A (en) | Technology for refining metal surface crystal grains by electric pulse and ultrasonic coupling | |
| JP2018526220A (en) | Reinforced structural parts | |
| CN101328567A (en) | Double electron beam partial heat treatment method after refractory metal material is welded | |
| CN103341695A (en) | Method for improving mechanical property of hardened and tempered low-alloy high-strength steel GMAW connector | |
| CN106425276B (en) | The welding repair method of 4145H forging and its 4145H forging of reparation | |
| Yang et al. | The effect of DSAW on preheating temperature in welding thick plate of high-strength low-alloy steel | |
| JP2014531319A (en) | Method of forming parts from steel plate | |
| CN102500906A (en) | Method for welding heterogeneous austenitic stainless steel plates | |
| CN105624669A (en) | Sectioned laser cladding remanufacturing method with preheating and heat treatment for complex parts | |
| CN103111734A (en) | Method and device for improving underwater wet welding joint structure property | |
| Fang et al. | Effect of heat input on microstructural and mechanical properties of high strength low alloy steel block parts fabricated by wire arc additive manufacturing | |
| JP2008038222A (en) | Method and apparatus for improving fatigue strength in metallic material | |
| Sisodia | High energy beam welding of advanced high strength steels | |
| Shen | Low distortion welding for shipbuilding industry | |
| CN102107313B (en) | On-line process for improving performance of welding heat affected zone | |
| Holder et al. | Development of a DC-LSND welding process for GMAW on DH-36 Steel | |
| RU2653738C1 (en) | Method of metal sheet laser thermal processing | |
| Yaakob et al. | Characterization of heat-treated gas metal arc-welded boron steel sheets | |
| Di et al. | Mirostructure and properties of laser welded joints of dual phase and press-hardened steels | |
| Zhai et al. | Wire arc additive manufacturing of ER70S-6/S355 bimetal component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |