CN106141469B - The frictional diffusion complex welding method of TiAl alloy turbine and quenched and tempered steel shaft - Google Patents
The frictional diffusion complex welding method of TiAl alloy turbine and quenched and tempered steel shaft Download PDFInfo
- Publication number
- CN106141469B CN106141469B CN201610554074.9A CN201610554074A CN106141469B CN 106141469 B CN106141469 B CN 106141469B CN 201610554074 A CN201610554074 A CN 201610554074A CN 106141469 B CN106141469 B CN 106141469B
- Authority
- CN
- China
- Prior art keywords
- tial alloy
- quenched
- alloy turbine
- steel shaft
- tempered steel
- 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.)
- Active
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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a kind of TiAl alloy turbine and the frictional diffusion complex welding method of quenched and tempered steel shaft, the technical problem low for solving existing frictional diffusion complex welding method joint tensile strength.Technical scheme is to carry out TiAl alloy turbine and intermediate weld interface self-cleaning, local violent plastic deformation first, is intimately associated the fresh surface of two layers of material, realizes the preliminary welding of TiAl alloy turbine and intermediary material；Secondly the pressure and high temperature in diffusion welding process are utilized, reasonable adjusting weld interface institutional framework, brittlement phase is reduced, increase solid solution phase, make the unstable tissue that the friction-weld interface device of TiAl alloy turbine and intermediate is formed by spreading and recrystallizing stabilisation, to improve joint performance；Friction welding finally is carried out to intermediate and quenched and tempered steel shaft, so as to realize effective connection to TiAl alloy turbine and quenched and tempered steel shaft, improves the weld strength of TiAl alloy turbine and quenched and tempered steel shaft.
Description
Technical field
The present invention relates to a kind of friction-diffusion complex welding method, more particularly to a kind of TiAl alloy turbine and quenched and tempered steel
The friction of axle-diffusion complex welding method.
Background technology
TiAl alloy, because its density is much smaller than high temperature alloy, quality can mitigate 40% compared with nickel base superalloy, and high
Warm specific strength is higher than high temperature alloy, and Toughness is higher than ceramic material again, in addition its excellent mechanical behavior under high temperature, inoxidizability
Thus it is considered as that can be used for height to push away pole than aero-engine and rocket propulsion system high-temperature component with preferable environment drag
Has the new material of potentiality, particularly suitable for engine high-temperature is heat-insulated, high temperature moving component, such as high-pressure compressor blade and low pressure
The manufacture of turbine in turbo blade, and exhaust-driven turbo-charger exhaust-gas turbo charger.Cast nickel-base alloy is replaced to make with TiAl alloy smooth
Gram with the charging turbine on automobile engine waste gas turbine pressure boost device, turbine rotor loss of weight more than 50% can be made, so as to improve hair
The transient response of motivation, reduce the power loss of engine.Therefore, the interconnection technique of TiAl alloy turbine and quenched rotating steel shaft
As the key technology urgently solved.
Document 1 " number of patent application is 201110274101.4 Chinese invention patent " discloses a kind of titanium-aluminum alloy turbine
With the resistance brazing welding method of steel shaft, this method adds solder among aluminium turbine and steel shaft, makes middle pricker using resistance heat
Material fusing, then applies upsetting force, unloads part after being kept for a period of time and carries out stress relief annealing to part, obtains whirlpool
Wheel and the combiner of steel shaft.The invention carries out heating connection using resistance heat, although whole end face temperature can be made evenly,
Weld strength is more common, and soldering is higher, but because this method uses solder, solder, which may melt, in the case of a high temperature makes welding
The hydraulic performance decline of joint.
Document 2 " number of patent application is 201010178555.7 Chinese invention patent " discloses a kind of titanium-aluminum alloy turbine
With the friction welding method of quenched and tempered steel shaft, this method is in the embedded groove of titanium-aluminum alloy turbine side processing revolution shape, is welded
The embedded groove solder side friction of the welding end surface of turbine wheel shaft and titanium-aluminum alloy turbine in termination process, by controlling the shortening amount that rubs,
So that the full embedded groove of overlap filling that turbine wheel shaft side is formed.So as to the dual effect for reaching the metallurgical binding of solder side with mechanically connecting
Fruit, connector joint mechanical properties increase.
The content of the invention
In order to overcome the shortcomings of that existing friction-diffusion complex welding method joint tensile strength is low, the present invention provides a kind of
The friction of TiAl alloy turbine and quenched and tempered steel shaft-diffusion complex welding method.This method is carried out first with Friction welding technique
TiAl alloy turbine and intermediary material weld interface self-cleaning, local violent plastic deformation, make the fresh surface of two layers of material close
Cut combination and big upsetting force need not be applied, realize the preliminary welding of TiAl alloy turbine and intermediary material；Secondly utilize
Pressure and high temperature in diffusion welding process, reasonable adjusting weld interface institutional framework, brittlement phase is reduced, increase solid solution phase, make
The unstable tissue that the friction-weld interface device of TiAl alloy turbine and intermediate is formed is by spreading and recrystallizing stabilisation, to carry
High joint performance；Friction welding finally is carried out to intermediate and quenched and tempered steel shaft, so as to realize to TiAl alloy turbine and quenched and tempered steel
Effective connection of axle, improve the weld strength of TiAl alloy turbine and quenched and tempered steel shaft.
The technical solution adopted for the present invention to solve the technical problems：A kind of TiAl alloy turbine and quenched and tempered steel shaft rub
Wiping-diffusion complex welding method, is characterized in comprising the following steps：
Step 1: the surface to be welded of TiAl alloy turbine, intermediate is polished, and cleared up with acetone；
Step 2: TiAl alloy turbine, intermediate are clamped in the movable clamp and rotating clamp of spin friction welding machine respectively
On tool, make the axle center of TiAl alloy turbine, intermediate conllinear；
Step 3: the spindle motor on spin friction welding machine drives intermediate to rotate at a high speed by main shaft and rolling clamp,
Force oil cylinder drives TiAl alloy turbine to move closer to and is pressed on the intermediate rotated at a high speed by slide unit and movable clamp, rubs
Wiping pressure is 100~200MPa, and fraction time is 5~10s；Rolling clamp stops the rotation, and force oil cylinder applies 200~400MPa
Upsetting force, 4~6s of pressurize, preliminary welding completes；
Step 4: the TiAl alloy turbine after friction welding and intermediate are put into the vacuum chamber of vacuum diffusion welding machine；
Vacuum is evacuated to as 1.0 × 10-5~1.0 × 10-2Pa；It is warming up to 820~980 DEG C and applies 30~100MPa pressure；
Unloading pressure and heating is closed in the case where temperature is 820~980 DEG C and pressure is 30~100MPa, after 10~60min of heat-insulation pressure keeping
System；Cool to room temperature after the completion of Diffusion Welding with the furnace；
Step 5: the intermediate redundance after being welded with TiAl alloy turbine is cut off；
Step 6: intermediate, quenched and tempered steel shaft surface to be welded are polished, and cleared up with acetone；
Step 7: the TiAl alloy turbine for being welded with intermediate, quenched and tempered steel shaft are clamped in spin friction welding machine respectively
On movable clamp and rolling clamp；
Step 8: the spindle motor on spin friction welding machine drives quenched and tempered steel shaft to revolve at a high speed by main shaft and rolling clamp
Turn, force oil cylinder is moved closer to by slide unit and movable clamp driving TiAl alloy turbine and intermediate and is pressed in rotation at a high speed
On quenched and tempered steel shaft, friction pressure is 100~200MPa, and fraction time is 5~10s；Rolling clamp is stopped the rotation, and force oil cylinder is applied
Add 200~400MPa upsetting force, 4~6s of pressurize；
Step 9: postheating and temper, for heating-up temperature to 580~650 DEG C, soaking time is 0.5~2h, welding
Complete.
The material of the intermediate is high temperature alloy.
The quenched and tempered steel shaft material is any of 42CrMo, 40Cr or 35CrMo.
The beneficial effects of the invention are as follows：This method carries out TiAl alloy turbine and centre first with Friction welding technique
Body material weld interface self-cleaning, local violent plastic deformation, it is intimately associated the fresh surface of two layers of material and need not applies big
Upsetting force, realize the preliminary welding of TiAl alloy turbine and intermediary material；Secondly the pressure in diffusion welding process is utilized
Power and high temperature, reasonable adjusting weld interface institutional framework, brittlement phase is reduced, increase solid solution phase, make TiAl alloy turbine and centre
The unstable tissue that the friction-weld interface device of body is formed is by spreading and recrystallizing stabilisation, to improve joint performance；It is finally right
Intermediate and quenched and tempered steel shaft carry out friction welding, so as to realize effective connection to TiAl alloy turbine and quenched and tempered steel shaft, improve
The weld strength of TiAl alloy turbine and quenched and tempered steel shaft.
The present invention is elaborated with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the welding structure schematic diagram of TiAl alloy turbine and quenched and tempered steel shaft in the inventive method embodiment 1.
Fig. 2 is the welding structure schematic diagram of TiAl alloy turbine and quenched and tempered steel shaft in the inventive method embodiment 2.
In figure, 1-TiAl alloy turbines, 2- intermediates, 3- quenched and tempered steel shafts.
Embodiment
Embodiment 1：Reference picture 1, friction-diffusion complex welding method tool of TiAl alloy turbine and quenched and tempered steel shaft of the present invention
Body step is as follows：
Step 1. is polished the surface to be welded of TiAl alloy turbine 1, intermediate 2, and is cleared up with acetone；
TiAl alloy turbine 1, intermediate 2 are clamped in the movable clamp and rotating clamp of spin friction welding machine by step 2. respectively
On tool, make TiAl alloy turbine 1, the axle center of intermediate 2 conllinear；
Spindle motor on step 3. friction-welding machine drives intermediate 2 to rotate at a high speed by main shaft and rolling clamp, exerts a force
Oil cylinder drives TiAl alloy turbine 1 to move closer to and is pressed at a high speed on the intermediate 2 of rotation, friction by slide unit and movable clamp
Pressure is 150MPa, fraction time 7s；Rolling clamp stops the rotation, and force oil cylinder applies 300MPa upsetting force, pressurize
5s, preliminary welding are completed；
TiAl alloy turbine 1 after friction welding and intermediate 2 are put into the vacuum chamber of vacuum diffusion welding machine by step 4.；
Vacuum is evacuated to as 1.0 × 10-3Pa；It is warming up to 860 DEG C and applies 50MPa pressure；In temperature be 860 DEG C and pressure is
Unloading pressure and heating system is closed under 50MPa, after heat-insulation pressure keeping 20min；Cool to room temperature after the completion of Diffusion Welding with the furnace；
The redundance of intermediate 2 after step 5. will weld with TiAl alloy turbine 1 is cut off, remaining thickness 3mm；
Intermediate 2,3 surface to be welded of quenched and tempered steel shaft are polished, and cleared up with acetone by step 6.；
The TiAl alloy turbine 1 for being welded with intermediate 2, quenched and tempered steel shaft 3 are clamped in spin friction welding machine by step 7. respectively
Movable clamp and rolling clamp on；
Spindle motor on step 8. friction-welding machine drives quenched and tempered steel shaft 3 to rotate at a high speed by main shaft and rolling clamp, applies
Power cylinder is moved closer to by slide unit and movable clamp driving TiAl alloy turbine 1 and intermediate 2 and is pressed in the tune of rotation at a high speed
In matter steel shaft 3, friction pressure 150MPa, fraction time 5s；Rolling clamp stops the rotation, and force oil cylinder applies 300MPa's
Upsetting force, pressurize 5s；
Step 9. postheating and temper, heating-up temperature to 650 DEG C, soaking time 0.5h, complete by welding.
The material of the intermediate 2 is a kind of high temperature alloy.Quenched and tempered steel shaft material is 42CrMo, 40Cr, 35CrMo etc..
Embodiment 2：Reference picture 2, friction-diffusion complex welding method tool of TiAl alloy turbine and quenched and tempered steel shaft of the present invention
Body step is as follows：
Step 1. is polished the surface to be welded of TiAl alloy turbine 1, quenched and tempered steel shaft 3, and is cleared up with acetone；
TiAl alloy turbine 1, quenched and tempered steel shaft 3 are clamped in movable clamp and the rotation of spin friction welding machine by step 2. respectively
On fixture, make TiAl alloy turbine 1, the axle center of quenched and tempered steel shaft 3 conllinear；
Spindle motor on step 3. friction-welding machine drives quenched and tempered steel shaft 3 to rotate at a high speed by main shaft and rolling clamp, applies
Power cylinder drives TiAl alloy turbine 1 to move closer to and is pressed at a high speed on the quenched and tempered steel shaft 3 of rotation by slide unit and movable clamp,
Friction pressure is 200MPa, fraction time 7s；Rolling clamp stops the rotation, and force oil cylinder applies 300MPa upsetting force,
Pressurize 5s, preliminary welding are completed；
TiAl alloy turbine 1 after friction welding and quenched and tempered steel shaft 3 are put into the vacuum chamber of vacuum diffusion welding machine by step 4.
In；Vacuum is evacuated to as 1.0 × 10-3Pa；It is warming up to 600 DEG C and applies 50MPa pressure；For 600 DEG C and pressed in temperature
Power is under 50MPa, and unloading pressure and heating system is closed after heat-insulation pressure keeping 20min；Cool to room after the completion of Diffusion Welding with the furnace
Temperature, welding are completed.
Claims (2)
1. the friction of a kind of TiAl alloy turbine and quenched and tempered steel shaft-diffusion complex welding method, it is characterised in that including following step
Suddenly：
Step 1: the surface to be welded of TiAl alloy turbine, intermediate is polished, and cleared up with acetone；
Step 2: TiAl alloy turbine, intermediate are clamped in respectively on the movable clamp and rolling clamp of spin friction welding machine,
Make the axle center of TiAl alloy turbine, intermediate conllinear；
Step 3: the spindle motor on spin friction welding machine drives intermediate to rotate at a high speed by main shaft and rolling clamp, force
Oil cylinder drives TiAl alloy turbine to move closer to and is pressed at a high speed on the intermediate of rotation by slide unit and movable clamp, friction pressure
Power is 100~200MPa, and fraction time is 5~10s；Rolling clamp stops the rotation, and force oil cylinder applies 200~400MPa top
Forging force, 4~6s of pressurize, preliminary welding are completed；
Step 4: the TiAl alloy turbine after friction welding and intermediate are put into the vacuum chamber of vacuum diffusion welding machine；Take out true
Sky to vacuum is 1.0 × 10-5~1.0 × 10-2Pa；It is warming up to 820~980 DEG C and applies 30~100MPa pressure；In temperature
Spend and be under 30~100MPa for 820~980 DEG C and pressure, unloading pressure and heating system is closed after 10~60min of heat-insulation pressure keeping；
Cool to room temperature after the completion of Diffusion Welding with the furnace；
Step 5: the intermediate redundance after being welded with TiAl alloy turbine is cut off；
Step 6: intermediate, quenched and tempered steel shaft surface to be welded are polished, and cleared up with acetone；
Step 7: the TiAl alloy turbine for being welded with intermediate, quenched and tempered steel shaft are clamped in the movement of spin friction welding machine respectively
On fixture and rolling clamp；
Step 8: the spindle motor on spin friction welding machine drives quenched and tempered steel shaft to rotate at a high speed by main shaft and rolling clamp, apply
Power cylinder is moved closer to by slide unit and movable clamp driving TiAl alloy turbine and intermediate and is pressed in the quenched of rotation at a high speed
In steel shaft, friction pressure is 100~200MPa, and fraction time is 5~10s；Rolling clamp stops the rotation, and force oil cylinder applies
200~400MPa upsetting force, 4~6s of pressurize；
Step 9: postheating and temper, for heating-up temperature to 580~650 DEG C, soaking time is 0.5~2h, has been welded
Into；
The material of the intermediate is high temperature alloy.
2. the friction of TiAl alloy turbine according to claim 1 and quenched and tempered steel shaft-diffusion complex welding method, its feature
It is：The quenched and tempered steel shaft material is any of 42CrMo, 40Cr or 35CrMo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554074.9A CN106141469B (en) | 2016-07-14 | 2016-07-14 | The frictional diffusion complex welding method of TiAl alloy turbine and quenched and tempered steel shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554074.9A CN106141469B (en) | 2016-07-14 | 2016-07-14 | The frictional diffusion complex welding method of TiAl alloy turbine and quenched and tempered steel shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106141469A CN106141469A (en) | 2016-11-23 |
| CN106141469B true CN106141469B (en) | 2018-04-03 |
Family
ID=58062761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610554074.9A Active CN106141469B (en) | 2016-07-14 | 2016-07-14 | The frictional diffusion complex welding method of TiAl alloy turbine and quenched and tempered steel shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106141469B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226956B (en) * | 2018-11-19 | 2021-01-05 | 西北工业大学 | Ultrasonic vibration assisted friction welding method |
| CN113547198A (en) * | 2021-08-16 | 2021-10-26 | 哈尔滨焊接研究院有限公司 | Inertia friction welding device and method for turbine disc shaft of aircraft engine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4203869C2 (en) * | 1992-02-11 | 1994-06-16 | Daimler Benz Ag | Heavy-duty, coated components made of a material that consists of the intermetallic phase titanium aluminide |
| CN101829853B (en) * | 2010-04-29 | 2012-07-11 | 重庆大学 | Current-carrying inertial axial friction composite welding method and equipment thereof |
| CN101844271A (en) * | 2010-05-20 | 2010-09-29 | 西北工业大学 | Friction welding method of titanium-aluminum alloy turbine and 42CrMo quenched and tempered steel shaft |
| DE102012205042A1 (en) * | 2012-03-29 | 2013-10-02 | Continental Automotive Gmbh | Turbine rotor for an exhaust gas turbine and a method for producing the turbine rotor |
| DE102012211542A1 (en) * | 2012-07-03 | 2014-01-09 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Method for connecting a shaft to a wheel |
| CN103785944B (en) * | 2014-02-28 | 2016-03-23 | 西北工业大学 | A kind of high Nb containing TiAl based alloy diffusion connection method |
-
2016
- 2016-07-14 CN CN201610554074.9A patent/CN106141469B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106141469A (en) | 2016-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106808079B (en) | TiAl alloy and Ti2Diffusion bonding method of AlNb alloy | |
| CN101844271A (en) | Friction welding method of titanium-aluminum alloy turbine and 42CrMo quenched and tempered steel shaft | |
| US6536110B2 (en) | Integrally bladed rotor airfoil fabrication and repair techniques | |
| EP3995594B1 (en) | Solid-state welding of coarse grain powder metallurgy nickel-based superalloys | |
| CN102380678A (en) | Resistance brazing welding method for titanium aluminum alloy turbine and steel shaft | |
| CN106141469B (en) | The frictional diffusion complex welding method of TiAl alloy turbine and quenched and tempered steel shaft | |
| CN103785944B (en) | A kind of high Nb containing TiAl based alloy diffusion connection method | |
| US20220074317A1 (en) | Rotor construction for high speed motors | |
| CN104551380B (en) | A kind of blisk and its manufacture method | |
| CN111218631A (en) | Method for preparing high-strength-and-toughness TC21 titanium alloy gradient structure | |
| CN112024800A (en) | Beta hot die forging forming method for large TC17 titanium alloy blisk forge piece | |
| CN110303259A (en) | The manufacturing method of different alloys Blisk | |
| NL2032715B1 (en) | Aero-engine compressor disc assembly inertia friction welding device and method | |
| CN111347147B (en) | Hot isostatic pressing connection method of tungsten and heat sink material | |
| CN111347146A (en) | Tungsten and heat sink material connector and preparation method thereof | |
| CN107984075A (en) | A kind of frictional diffusion soldering method of aluminium target material assembly | |
| CN113351881B (en) | Mixed additive manufacturing method for aero-engine case | |
| CN102581467B (en) | Connection method for dissimilar metal constant strength joint of titanium-aluminum base alloy and titanium alloy | |
| CN116984725B (en) | FGH98 alloy diffusion welding method added with pure nickel foil interlayer | |
| CN1183334A (en) | Method for connecting Ti-Al alloy turbine rotor with structure steel shaft | |
| CN116043003B (en) | Friction extrusion strengthening method for blade disc weld joint of inertia friction welding engine | |
| CN109182936B (en) | Method for improving wear resistance of industrial pure titanium through stirring friction processing | |
| CN114453542B (en) | Manufacturing method of titanium alloy bimetal for compressor disc of gas turbine engine | |
| CN114277301B (en) | High-strength high-toughness light high-entropy alloy and preparation method thereof | |
| CN115627430A (en) | Method for improving grain size and orientation distribution uniformity of high-temperature titanium alloy forging stock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |