CN108705182A - Large-fusion-depth welding method for axle housing longitudinal seam - Google Patents
Large-fusion-depth welding method for axle housing longitudinal seam Download PDFInfo
- Publication number
- CN108705182A CN108705182A CN201810331736.5A CN201810331736A CN108705182A CN 108705182 A CN108705182 A CN 108705182A CN 201810331736 A CN201810331736 A CN 201810331736A CN 108705182 A CN108705182 A CN 108705182A
- Authority
- CN
- China
- Prior art keywords
- welding
- axle housing
- housing longitudinal
- half bridge
- longitudinal joint
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000035515 penetration Effects 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims description 7
- 239000002932 luster Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000008246 gaseous mixture Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010891 electric arc Methods 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/095—Monitoring or automatic control of welding parameters
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to a large-fusion-depth welding method for a longitudinal seam of an axle housing. The high-speed electric arc technology is adopted, the CO2 gas shielded welding process is used, the middle section longitudinal welding line of the axle housing is welded in a single way under the condition of no beveling, the requirements that the penetration rate of the longitudinal welding line with the thickness of 14mm is more than or equal to 70% and the penetration depth is less than or equal to 5mm are met, and the welding method has the advantages of low voltage, energy conservation, simple steps, convenience in operation, high efficiency and good welding effect, and has outstanding practicability.
Description
Technical field
The present invention relates to a kind of big penetration welding methods of axle housing longitudinal joint, belong to welding technology field.
Background technology
In the prior art, there are mainly two types of the welding manners of axle housing middle piece weld seam, one is square grooves to use submerged-arc welding,
Another kind is out that slope uses CO2 gas shielded arc weldings.It is unstable to there is welding using the longitudinal seam in submerged-arc welding mode welding bridge hull stage casing
It is fixed, the defect of product reliability difference；By the way of CO2 gas shielded arc weldings the longitudinal seam in welding bridge hull stage casing that there are processes is more,
The defect of production cost height, low production efficiency.
Invention content
The purpose of the present invention is the drawbacks described above for existing axle housing middle piece longitudinal seam welding technique, provide a kind of new weldering
Method is connect, which uses high speed arc spraying technology, while having used CO2 gas shielded welding progress, in square groove
In the case of single track weld axle housing middle piece longitudinal seam, realize 14mm thickness longitudinal seam penetration rate >=70% and the requirement of reinforcement≤5mm,
The welding method has voltage low, energy saving, and step is simple and convenient to operate, efficient, the good advantage of welding effect, has and protrudes
Practicability.
To achieve the above object, technical solution of the invention is：
Step S1, prepare two pieces of half bridge shells to match, the welding section to two pieces of half bridge shells and its periphery 20mm-30mm ranges
Interior embroidery, oil, dirt are cleaned out, until exposing metallic luster；Two pieces of half bridge shells are made of 16MnL materials, and thickness is
14mm；
Step S2, the welding surface of two half bridge shell longitudinal seams is aligned；
Step S3, electric welding machine is adjusted to high speed arc spraying function and sets welding parameter, to axle housing longitudinal joint by the way of downhand welding
Carry out single track welding；Wherein, welding current 400A-500A, weldingvoltage 20V-40V, speed of welding 400mm/min-
500mm/min, gas are the mixed gas of Ar and C02, gas flow 20ml/min-30ml/min；
Step S4, single track welding is carried out to axle housing longitudinal joint by the way of downhand welding.
Preferably, in the step S3, welding current 440A, weldingvoltage 23.6V, speed of welding 420mm/
Min, gas are 80%Ar and 20%C02 mixed gas, gas flow 20ml/min.
Preferably, in the step S3, used welding wire is cable formula welding wire.
Preferably, a diameter of 2.4mm of the cable formula welding wire.
Compared with prior art, the beneficial effects of the invention are as follows：
1. present invention employs high speed arc spraying technologies, while having used CO2 gas shielded welding progress, in the case of square groove
Single track welds axle housing middle piece longitudinal seam, realizes 14mm thickness longitudinal seam penetration rate >=70% and the requirement of reinforcement≤5mm, the welding
Method has voltage low, energy saving, and step is simple and convenient to operate, efficient, the good advantage of welding effect, has practicality outstanding
Property.
2. present invention employs cable formula welding wires to be welded, there is thermal weld stress to concentrate, weld penetration is big, reinforcement is small,
What product reliability improved has advantage, further improves welding effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of axle housing middle piece of the present invention.
In figure：Left longitudinal seam a, right longitudinal seam b.
Specific implementation mode
The present invention is described in further detail below in conjunction with description of the drawings and specific embodiment.
Referring to Fig. 1, a kind of big penetration welding method of axle housing longitudinal joint is as follows：
Step S1, prepare two pieces of half bridge shells to match, the welding section to two pieces of half bridge shells and its periphery 20mm-30mm ranges
Interior embroidery, oil, dirt are cleaned out, until exposing metallic luster；Two pieces of half bridge shells are made of 16MnL materials, and thickness is
14mm；
Step S2, the welding surface of two half bridge shell longitudinal seams is aligned；
Step S3, electric welding machine is adjusted to high speed arc spraying function and sets welding parameter, to axle housing longitudinal joint by the way of downhand welding
Carry out single track welding；Wherein, welding current 400A-500A, weldingvoltage 20V-40V, speed of welding 400mm/min-
500mm/min, gas are the mixed gas of Ar and C02, gas flow 20ml/min-30ml/min；
Step S4, single track welding is carried out to axle housing longitudinal joint by the way of downhand welding.
As a preferred technical solution, in the step S3, welding current 440A, weldingvoltage 23.6V, welding
Speed 420mm/min, gas are 80%Ar and 20%C02 mixed gas, gas flow 20ml/min.
As a preferred technical solution, in the step S3, used welding wire is cable formula welding wire.
A diameter of 2.4mm of the cable formula welding wire as a preferred technical solution,.
Embodiment 1：
Such as Fig. 1, a kind of big penetration welding method of axle housing longitudinal joint, specific implementation step is as follows：
Step S1, prepares two pieces of half bridge shells to match, this two and half is made of 16MnL materials, the equal 14mm of thickness.By two
The to-be-welded region of block axle housing and its becoming rusty within the scope of the 20-30mm of periphery, oil, dirt are cleaned out, until exposing metallic luster.
The welding surface of the left longitudinal seams of a of two half bridge shells and the right longitudinal seams of b is aligned by step S2, is not stayed between two welding surfaces
Gap, and by misalignment control within 0.5mm.Then electric welding machine is adjusted to high speed arc spraying function and sets welding parameter,
Wherein, welding current 440A, weldingvoltage 23.6V, speed of welding 420mm/min, gas are that 80%Ar and 20%C02 is mixed
Gas, gas flow 20ml/min, welding wire are the cable formula welding wire of diameter 2.4mm.It is finally vertical to axle housing by the way of downhand welding
Seam carries out single track welding.
After weld seam cooling, is laterally sampled from weld seam, fusion penetration will be measured after transversal mirror polish and reaches 10.6mm, reinforcement is
3.9mm。
Embodiment 2：
Such as Fig. 1, a kind of big penetration welding method of axle housing longitudinal joint, specific implementation step is as follows：
Step S1, prepares two pieces of half bridge shells to match, this two and half is made of 16MnL materials, the equal 14mm of thickness.By two
The to-be-welded region of block axle housing and its becoming rusty within the scope of the 20-30mm of periphery, oil, dirt are cleaned out, until exposing metallic luster.
The welding surface of the left longitudinal seams of a of two half bridge shells and the right longitudinal seams of b is aligned by step S2, is not stayed between two welding surfaces
Gap, and by misalignment control within 0.5mm.Then electric welding machine is adjusted to high speed arc spraying function and sets welding parameter,
Wherein, welding current 420A, weldingvoltage 23.1V, speed of welding 400mm/min, gas are that 80%Ar and 20%C02 is mixed
Gas, gas flow 20ml/min, welding wire are the cable formula welding wire of diameter 2.4mm.It is finally vertical to axle housing by the way of downhand welding
Seam carries out single track welding.
After weld seam cooling, is laterally sampled from weld seam, fusion penetration will be measured after transversal mirror polish and reaches 10.3mm, reinforcement is
4.3mm。
The above content is the further descriptions for combining specific implementation mode to be the present invention, must not believe that the present invention
Specific implementation be confined to these explanations, for those of ordinary skill in the art to which the present invention belongs, do not departing from
Under the premise of present inventive concept, the simple replacement made all shall be regarded as belonging to protection scope of the present invention.
Claims (4)
1. a kind of big penetration welding method of axle housing longitudinal joint, is as follows：
Step S1, prepare two pieces of half bridge shells to match, the welding section to two pieces of half bridge shells and its periphery 20mm-30mm ranges
Interior embroidery, oil, dirt are cleaned out, until exposing metallic luster；Two pieces of half bridge shells are made of 16MnL materials, and thickness is
14mm；
Step S2, the welding surface of two half bridge shell longitudinal seams is aligned；
Step S3, electric welding machine is adjusted to high speed arc spraying function and sets welding parameter, to axle housing longitudinal joint by the way of downhand welding
Carry out single track welding；Wherein, welding current 400A-500A, weldingvoltage 20V-40V, speed of welding 400mm/min-
500mm/min, gas are the mixed gas of Ar and C02, gas flow 20ml/min-30ml/min.
2. a kind of big penetration welding method of axle housing longitudinal joint according to claim 1, it is characterised in that：The step S3
In, welding current 440A, weldingvoltage 23.6V, speed of welding 420mm/min, gas is 80%Ar and 20%C02 gaseous mixtures
Body, gas flow 20ml/min.
3. a kind of big penetration welding method of axle housing longitudinal joint according to claim 1 or 2, it is characterised in that：The step
In rapid S3, used welding wire is cable formula welding wire.
4. a kind of big penetration welding method of axle housing longitudinal joint according to claim 3, it is characterised in that：The cable formula welding wire
A diameter of 2.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810331736.5A CN108705182A (en) | 2018-04-13 | 2018-04-13 | Large-fusion-depth welding method for axle housing longitudinal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810331736.5A CN108705182A (en) | 2018-04-13 | 2018-04-13 | Large-fusion-depth welding method for axle housing longitudinal seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108705182A true CN108705182A (en) | 2018-10-26 |
Family
ID=63866720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810331736.5A Pending CN108705182A (en) | 2018-04-13 | 2018-04-13 | Large-fusion-depth welding method for axle housing longitudinal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108705182A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431080A (en) * | 2003-01-16 | 2003-07-23 | 中国重型汽车集团有限公司 | Technique for welding car axle housing made by punching medium heavy steel plates |
| CN101209508A (en) * | 2006-12-27 | 2008-07-02 | 沈阳鼓风机(集团)有限公司 | Welding process of low temperature steel welding body case |
| US20100320174A1 (en) * | 2009-06-17 | 2010-12-23 | Hybinette Carl S | Hybrid laser arc welding system and method for railroad tank car fabrication |
| CN103639646A (en) * | 2013-12-27 | 2014-03-19 | 中国重汽集团济南动力有限公司 | Machining technique for longitudinal seam bevel of punching-welding axle housing |
| CN107052520A (en) * | 2017-04-17 | 2017-08-18 | 北京航星机器制造有限公司 | A kind of single track electric arc, which is swung, increases the method that material shapes big wall thickness aluminum alloy junction component |
| CN107052561A (en) * | 2017-04-01 | 2017-08-18 | 江苏安靠智能输电工程科技股份有限公司 | A kind of GIL/GIS buses housing and its stirring friction-welding technique |
-
2018
- 2018-04-13 CN CN201810331736.5A patent/CN108705182A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431080A (en) * | 2003-01-16 | 2003-07-23 | 中国重型汽车集团有限公司 | Technique for welding car axle housing made by punching medium heavy steel plates |
| CN101209508A (en) * | 2006-12-27 | 2008-07-02 | 沈阳鼓风机(集团)有限公司 | Welding process of low temperature steel welding body case |
| US20100320174A1 (en) * | 2009-06-17 | 2010-12-23 | Hybinette Carl S | Hybrid laser arc welding system and method for railroad tank car fabrication |
| CN103639646A (en) * | 2013-12-27 | 2014-03-19 | 中国重汽集团济南动力有限公司 | Machining technique for longitudinal seam bevel of punching-welding axle housing |
| CN107052561A (en) * | 2017-04-01 | 2017-08-18 | 江苏安靠智能输电工程科技股份有限公司 | A kind of GIL/GIS buses housing and its stirring friction-welding technique |
| CN107052520A (en) * | 2017-04-17 | 2017-08-18 | 北京航星机器制造有限公司 | A kind of single track electric arc, which is swung, increases the method that material shapes big wall thickness aluminum alloy junction component |
Non-Patent Citations (2)
| Title |
|---|
| 李伟吾: "微型汽车后桥焊接工艺", 《焊接》 * |
| 王泉峰: "微型汽车后桥加工及焊接工艺", 《科技致富向导》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181026 |