CN109570730A - A kind of friction welding method for filling in complementary class part - Google Patents
A kind of friction welding method for filling in complementary class part Download PDFInfo
- Publication number
- CN109570730A CN109570730A CN201811450998.XA CN201811450998A CN109570730A CN 109570730 A CN109570730 A CN 109570730A CN 201811450998 A CN201811450998 A CN 201811450998A CN 109570730 A CN109570730 A CN 109570730A
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- China
- Prior art keywords
- class part
- complementary class
- plug
- welding
- filling
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- 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.)
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a kind of friction welding methods for filling in complementary class part, include the following steps: for gimbal structure to connect with machine tool chief axis, and plug complementary class part is passed through consent and is connect with direction section structure;Machine tool chief axis slowly accelerates to rotate, and fills in complementary class part and consent is fitted using groove face, until plug complementary class part and consent centering;Welding machine drives frictional heat generation between the flange disc spins of plug complementary class part and welding main body by welding tooling, is plastically deformed mating surface adjacent material;Plug mends pressure maintaining after all standing, forms seam organization.The present invention provides a kind of simple, economic, practical sides to hold out against fixture.
Description
Technical field
The invention belongs to mechanical manufacturing fields, are related to a kind of friction welding method for filling in complementary class part.
Background technique
Friction plug repair welding (Friction Plug Welding, abbreviation FPW) is that Britain's institute of welding is invented in nineteen ninety-five
A kind of solid phase joining technique, be currently used primarily in the repair welding to weld defect region.Summer UK corporation Lip river gram in 2000
Applied in the weld seam repairing of uncommon moral Martin Corporation tank outside aerospace craft, furthermore the Boeing in the U.S. with
TWI cooperation uses friction plug weld technique in tank repair welding.625 institute of domestic air mail, Capital Aerospace Machinery Company and Shanghai space flight
Equipment head factory has also carried out correlative study, but it is domestic in the application depth of friction plug repair welding research and range with foreign study also
There are certain gaps.
There is a large amount of plug complementary class part on carrier rocket tank at present, this plug complementary class part welding process is cumbersome, quantity
It is more, cause the progress of welding that can seriously affect the production cycle of tank.The welding procedure one of plug complementary class part traditional at present
As be using melting welding, this traditional-handwork welding mechanism has the disadvantage in that
1. welding tooling is complicated, wide variety, clamping is time-consuming and laborious;2. welding operating space is small, worker operation is difficult;3.
Fusion welds defect is difficult to avoid that repair welding is difficult;4. welding residual stress easily causes local deformation.
In addition, traditional melting welding tooling is complicated, welding is required workbench, tortuous bow fixture, the works such as external pressure component each time
Tool, which is combined with each other, could really carry out human weld, and structure is complicated for welding tooling, and the preparation time is long, manual welding error
Greatly, quality stability fluctuation is big.Important space flight device but will be led because of certain manual weldings are of low quality in aeronautical field
Cause major accident and economic loss.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of friction welding method for filling in complementary class part.
In order to achieve the above object, present invention employs following technical proposals:
A kind of friction welding method for filling in complementary class part, includes the following steps:
A, gimbal structure is connect with machine tool chief axis, plug complementary class part is passed through into consent and is connect with direction section structure;
B, machine tool chief axis slowly accelerates to rotate, and fills in complementary class part and consent is fitted using groove face, until plug complementary class
Part and consent centering;
C, welding machine drives frictional heat generation between the flange disc spins of plug complementary class part and welding main body by welding tooling, makes to match
Conjunction face adjacent material is plastically deformed;
D, plug mends pressure maintaining after all standing, forms seam organization.
Preferably, machine tool chief axis output power drives welding machine in the step C.
Preferably, speed of mainshaft control is 5500-8000 revs/min.
Preferably, plug mended weld interval less than 5 seconds in the step D.
Preferably, dwell pressure is thousand Ns of 20-80, and the time was less than 15 seconds in the step D.
The invention has the following advantages that
Welding method of the invention, may be implemented that weld interval is short, thermal weld stress amount is small, and weld seam sector width is very narrow,
The influence of the excessive butt joint performance of thermal weld stress can be effectively reduced, and friction plug repair welding seam organization is fine and closely woven, is mended with plug
Flange and base material may be implemented to seamlessly transit substantially, and connector bonding strength is higher than melting welding by 20%, and residual stress is low, welding deformation
Small, working principle is simple, and relatively traditional melting welding, the welding manner working efficiency can be improved 50%, and capacity usage ratio can be improved
40%, and welding parameter is easier to realize accurate control.
Detailed description of the invention
Fig. 1-3 is plug complementary class design of part exemplary diagram.
Fig. 4 is welding manner schematic diagram of the present invention
Appended drawing reference: 1, welding machine;21, curved roof;22, supporting mechanism;3, complementary class part is filled in;4, main body is welded;5. ten thousand
To section structure.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment:
As shown in figure 4, welding object is to weld main body 4 (i.e. workpiece) and plug complementary class part 3, gimbal structure 5 and lathe
Main shaft 1 is locked, and plug complementary class part passes through workpiece and the clamping of gimbal structure 5 is locked, and main shaft slowly accelerates rotation to make universal joint machine
Structure drives plug complementary class part 3 and welding 4 mating surface of main body to form axis centering, and welding machine 1 passes through welding by main shaft output power
Tooling drives frictional heat generation between the flange disc spins of plug complementary class part 3 and welding main body 4, and the heat for the production that rubs makes material around mating surface
Material reaches mecystasis, and has a relative motion along the flange rotary direction of plug complementary class part 3;Plastic material is in plug complementary class
The effect of 3 flange of part is lower to occur plasticity movement, and dynamic recrystallization occurs under the action of Thermal Cycle for plastic material, and generation is permitted
More nucleus.
Machine tool chief axis output power drives welding machine, and speed of mainshaft control is 5500-8000 revs/min, and plug mends weld interval
Less than 5 seconds, dwell pressure was thousand Ns of 20-80, and the time was less than 15 seconds.
Friction plug reinforcing method orchid weldering weld interval of the invention is short, thermal weld stress amount is small, and weld seam sector width is very narrow, can be with
The influence of the excessive butt joint performance of thermal weld stress is effectively reduced, and friction plug repair welding seam organization is fine and closely woven, it is blue with plug reinforcing method
It may be implemented to seamlessly transit substantially with base material, the effective switching performance for guaranteeing connector.
Plug complementary class part friction welding (FW) needs the technological parameter that controls relatively more, mainly has: main shaft rotary speed, Welder into
Speed, friction pressure weld fraction time, draw forging force, draw forging dwell time, emergency stop braking time and consent and stopper
Fit angle etc., computer controlled automatic may be implemented in most of parameter, is easy to implement automatic welding.For different materials
Material, technological parameter will carry out adjustment appropriate, then can just carry out batch-automated welding.
The plug of the present embodiment mends friction welding (FW) and the comparison of traditional plug benefit melting welding is as follows:
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (5)
1. a kind of friction welding method for filling in complementary class part, which comprises the steps of:
A, gimbal structure is connect with machine tool chief axis, plug complementary class part is passed through into consent and is connect with direction section structure;
B, machine tool chief axis slowly accelerates to rotate, and fills in complementary class part and consent is fitted using groove face, until plug complementary class part
With consent centering;
C, welding machine drives frictional heat generation between the flange disc spins of plug complementary class part and welding main body by welding tooling, makes mating surface
Surrounding aluminum alloy materials are plastically deformed;
D, plug mends pressure maintaining after all standing, forms seam organization.
2. a kind of friction welding method for filling in complementary class part according to claim 1, it is characterised in that: in the step C,
Machine tool chief axis output power drives welding machine.
3. a kind of friction welding method for filling in complementary class part according to claim 1, it is characterised in that: in the step C,
Speed of mainshaft control is 5500-8000 revs/min.
4. a kind of friction welding method for filling in complementary class part according to claim 1, it is characterised in that: in the step D,
Plug mended weld interval less than 5 seconds.
5. a kind of friction welding method for filling in complementary class part according to claim 1, it is characterised in that: in the step D,
Dwell pressure is thousand Ns of 20-80, and the time was less than 15 seconds.
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CN201811450998.XA CN109570730A (en) | 2018-11-30 | 2018-11-30 | A kind of friction welding method for filling in complementary class part |
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CN201811450998.XA CN109570730A (en) | 2018-11-30 | 2018-11-30 | A kind of friction welding method for filling in complementary class part |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113210838A (en) * | 2021-06-09 | 2021-08-06 | 四川航天长征装备制造有限公司 | Box sealing circumferential weld repair welding method based on back-pumping friction stir welding process |
CN114029605A (en) * | 2021-11-26 | 2022-02-11 | 国焊(上海)智能科技有限公司 | Drawing forging type friction welding tool and welding method |
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EP0246239A1 (en) * | 1985-03-02 | 1987-11-25 | Brd Co Ltd | Friction welding apparatus. |
CN2815583Y (en) * | 2005-03-15 | 2006-09-13 | 中国航空工业第一集团公司北京航空制造工程研究所 | Planar-two-dimensional weld seam mixing friction welding spindle head |
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CN202833104U (en) * | 2012-10-04 | 2013-03-27 | 德州华海石油机械有限公司 | Slurry rod capable of freely adjusting coaxiality of cylinder sleeve and piston |
CN103303432A (en) * | 2013-05-21 | 2013-09-18 | 中船澄西船舶修造有限公司 | Centering rod of universal joint |
CN107225321A (en) * | 2017-08-07 | 2017-10-03 | 中国航天科技集团公司长征机械厂 | A kind of friction welding method of ozzle class part |
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2018
- 2018-11-30 CN CN201811450998.XA patent/CN109570730A/en active Pending
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EP0246239A1 (en) * | 1985-03-02 | 1987-11-25 | Brd Co Ltd | Friction welding apparatus. |
CN2815583Y (en) * | 2005-03-15 | 2006-09-13 | 中国航空工业第一集团公司北京航空制造工程研究所 | Planar-two-dimensional weld seam mixing friction welding spindle head |
CN101913261A (en) * | 2010-08-09 | 2010-12-15 | 河海大学常州校区 | Mechanical press |
CN202833104U (en) * | 2012-10-04 | 2013-03-27 | 德州华海石油机械有限公司 | Slurry rod capable of freely adjusting coaxiality of cylinder sleeve and piston |
CN103303432A (en) * | 2013-05-21 | 2013-09-18 | 中船澄西船舶修造有限公司 | Centering rod of universal joint |
CN107225321A (en) * | 2017-08-07 | 2017-10-03 | 中国航天科技集团公司长征机械厂 | A kind of friction welding method of ozzle class part |
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孙永科等: "《汽车底盘构造与维修》", 30 September 2016 * |
王国庆等: "摩擦塞补焊技术研究现状及展望", 《电焊机》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113210838A (en) * | 2021-06-09 | 2021-08-06 | 四川航天长征装备制造有限公司 | Box sealing circumferential weld repair welding method based on back-pumping friction stir welding process |
CN114029605A (en) * | 2021-11-26 | 2022-02-11 | 国焊(上海)智能科技有限公司 | Drawing forging type friction welding tool and welding method |
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