CN101073849A - Composite method for controlling electronic-beam welding thermal circulation of TiAl intermetallic compound - Google Patents
Composite method for controlling electronic-beam welding thermal circulation of TiAl intermetallic compound Download PDFInfo
- Publication number
- CN101073849A CN101073849A CN 200710072370 CN200710072370A CN101073849A CN 101073849 A CN101073849 A CN 101073849A CN 200710072370 CN200710072370 CN 200710072370 CN 200710072370 A CN200710072370 A CN 200710072370A CN 101073849 A CN101073849 A CN 101073849A
- Authority
- CN
- China
- Prior art keywords
- welding
- line
- adopt
- adopts
- intermetallic compound
- 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
Landscapes
- Welding Or Cutting Using Electron Beams (AREA)
Abstract
The invention is concerned with TiAl intermetallic compound electron beam jointing thermodynamic cycles complex control method, belonging to intermetallic compound jointing field. Its joint without crack for solving the cold crack produced through intermetallic compound electron beam jointing. Set insulation panels between the object for welding and the clamping device of welding machine. Press and fix the two plane-shape jointing objects with welding line on the parallel direction, or press and fix the two pipe-shape jointing objects on the axis direction. Control the thermodynamic cycles of the welding process through three steps in vacuum and use caustics method to scan the welding line for some times and warm up step by step. After the warm-up, carry the welding at once and after the welding, take caustics method to scan the welding line for some times and heat step by step. The welding control method is easy without adding equipment or filling transition stuff and is for some tie-in connecting form.
Description
Technical field
The present invention relates to TiAl intermetallic compound electro-beam welding method, belong to intermetallic compound jointing field.
Background technology
At present an emphasis aspect engine research is to adopt new material to substitute traditional Ti alloy and Ni based high-temperature alloy, with the thrust-weight ratio that increases engine and improve the high temperature serviceability.TiAl intermetallic compound density is low, the elastic modelling quantity height, and have good high-temperature intensity, creep resistant and oxidation resistance, TiAl intermetallic compound serviceability temperature can be brought up to 750 ℃～950 ℃ than traditional high temperature alloy, and density only is the Ni based high-temperature alloy half, be a kind of very promising high-temperature structural material, can be applicable to the high-temperature component of automobile or aero-engine, as blade, the turbine disk, the gentle family of power and influence of jet pipe etc.For in engineering reality, using the TiAl intermetallic compound, must successfully develop its interconnection technique, result of study shows both at home and abroad, solid-state connection such as soldering, diffusion welding (DW), friction welding (FW) etc. are considered to comparatively effectively interconnection technique, but often be subjected to the restriction of type of attachment and serviceability temperature, and adopt lap joint to make the Welding Structure complexity morely, be difficult to realize lightweight.Therefore be necessary the melting welding of TiAl intermetallic compound is furtherd investigate the especially exploitation of high-power electron beam solder technology under the vacuum condition.But the distinct issues of TiAl intermetallic compound are that the slip system of γ-TiAl own is less, dislocation motion and propagation difficulty, and temperature-room type plasticity is low and deformability is poor.Though pass through alloying or adopt different Technologies for Heating Processing can improve the tissue and the plasticity and toughness of this material, but the tissue that the rapid thermal cycles during electron beam welding forms joint is different from mother metal, and cause bigger thermic stress easily, caused joint very easily to form cold crack, restricted the application of this alloy in engineering reality, the rational method that addresses this problem does not both at home and abroad at present appear in the newspapers as yet.
Summary of the invention
The objective of the invention is to solve the electron beam welding of TiAl intermetallic compound and be easy to generate macroscopical cold crack problem.
TiAl intermetallic compound electron beam welding thermal cycle composite control method, its welding object is two plate objects that thickness is 0.8mm～5.0mm, concrete steps are:
Step 1, will remove internal stress, the smooth cleaning of surface to be welded the sheet material of two TiAl intermetallic compounds with anchor clamps fixing before, between welding machine clamp base and each welding object, fix a thermal insulation board respectively;
Step 2, welding object implement is clamped, described anchor clamps only apply clamping force in the direction parallel with weld seam of welding object;
Step 3,5 * 10
-2Pa to 5 * 10
-4Under the atmospheric pressure of Pa, employing defocuses carries out shuttle-scanning, classification preheating to place to be welded, each grade adopts the line that increases progressively successively from small to large among 2mA～12mA to scan the other end from an end of weld seam respectively, accelerating potential is 50kV～55kV, focus current 3370mA, sweep speed is 2mm/s～10mm/s;
Step 4, step 3 are welded after finishing immediately, and accelerating potential is identical with step 3, and focus current is 2590mA, and line is 3mA～50mA, and speed of welding is 2mm/s～15mm/s;
After step 5, step 4 are finished, employing immediately defocuses butt welded seam and carries out the classification after heat, each grade adopts the line that successively decreases successively from big to small among 12mA～1mA to scan the other end from an end of weld seam respectively, accelerating potential is identical with step 3, focus current is 3370mA, and sweep speed is 2mm/s～20mm/s.
TiAl intermetallic compound electron beam welding thermal cycle composite control method, its welding object are the tubing of the TiAl intermetallic compound of the thick 0.8mm～3.5mm of being of two endwalls, and the weld seam of welding is a circular weld, and concrete steps are:
Step 1, will remove internal stress, the smooth cleaning of surface to be welded two welding objects with anchor clamps fixing before, fixing thermal insulation board between anchor clamps and welding object;
Step 2, welding object implement is clamped, described anchor clamps adopt the mode that axially clamps to welding object;
Step 3,5 * 10
-2Pa to 5 * 10
-4Under the atmospheric pressure of Pa, adopt to defocus place to be welded is carried out multiple scanning, classification preheating, each grade adopts the line that increases progressively successively from small to large among 2mA～10mA around the circular weld run-down respectively; Accelerating potential is 50kV～55kV, focus current 3350mA, and sweep speed is 2mm/s～8mm/s;
Step 4, step 3 are welded after finishing immediately, and accelerating potential is identical with step 3, and focus current is 2590mA, and line is 2mA～32mA, and speed of welding is 2mm/s～10mm/s;
After step 5, step 4 are finished, the weld seam that welding is finished adopts to defocus and carries out the classification after heat immediately, each grade adopts the line that successively decreases successively from big to small among 10mA～2mA around the circular weld run-down respectively, accelerating potential is identical with step 3, focus current is 3350mA, and sweep speed is 2mm/s～12mm/s.
The composition of described welding object TiAl intermetallic compound comprises: Ti:48～65at.%, Al:35～51at.% can also comprise V:1.0～9.0at.% or Cr:1.5～2.5at.% or Nb:1.5～5.0at.%.
TiAl intermetallic compound electron beam welding thermal cycle composite control method of the present invention, do not need to increase special installation or add the transition zone metal, just can avoid weld seam to produce macroscopic cracking fully, reach the purpose of flawless welding, be applicable to the welding of TiAl intermetallic compound various terminal form.
The specific embodiment
The specific embodiment one: TiAl intermetallic compound electron beam welding thermal cycle composite control method, its welding object is two plate objects that thickness is 0.8mm～5.0mm, concrete steps are:
Step 1, will remove internal stress, the smooth cleaning of surface to be welded the sheet material of two TiAl intermetallic compounds with anchor clamps fixing before, between welding machine clamp base and each welding object, fix a thermal insulation board respectively;
Step 2, welding object implement is clamped, described anchor clamps only apply clamping force in the welding object direction parallel with weld seam;
Step 3,5 * 10
-2Pa to 5 * 10
-4Under the atmospheric pressure of Pa, employing defocuses carries out shuttle-scanning, classification preheating to place to be welded, each grade adopts the line that increases progressively successively from small to large among 2mA～12mA to scan the other end from an end of weld seam respectively, accelerating potential is 50kV～55kV, focus current 3370mA, sweep speed is 2mm/s～10mm/s;
Step 4, step 3 are welded after finishing immediately, and accelerating potential is identical with step 3, and focus current is 2590mA, and line is 3mA～50mA, and speed of welding is 2mm/s～15mm/s;
After step 5, step 4 are finished, employing immediately defocuses butt welded seam and carries out the classification after heat, each grade adopts the line that successively decreases successively from big to small among 12mA～1mA to scan the other end from an end of weld seam respectively, accelerating potential is identical with step 3, focus current is 3370mA, and sweep speed is 2mm/s～20mm/s.
The composition of the described TiAl intermetallic compound of present embodiment comprises: Ti:48～65at.%, Al:35～51at.% can also comprise V:1.0～9.0at.% or Cr:1.5～2.5at.% or Nb:1.5～5.0at.%.
In the step 1 of present embodiment, between welding object and clamp base, increased thermal insulation board,, can effectively reduce the cooling velocity of postwelding joint in order to the conduction of the heat between restriction welding object and the anchor clamps.
In the step 2 of present embodiment, employing clamps the clamping force that welding object only applies with the weld seam parallel direction, in order to of the thermal expansion of constraint thermal cycle heating period welding object along bead direction, reduce the thermic stress that welding object produces at the thermal cycle cooling stage, and do not apply contained in other directions, avoid the thermal cycle cooling stage to produce bigger constraint stress effectively, the generation that prevents macroscopic cracking is had certain effect.
Present embodiment is from step 3 to five, the thermal cycle that divides three phases programming continuous control whole welding process, wherein adopt the classification preheating in the warm of step 3, increase line step by step, can make that the temperature at position rises gradually around the weld seam, after the step 5 after welding in the thermal process, employing classification after heat, the line that successively decreases step by step can make weld seam after the welding and temperature on every side thereof descend gradually.Take these methods can improve the joint microstructure structure, prolong the stress release time, can obtain not have the electron beam welding joint of macroscopical cold crack.
The specific embodiment two: the thickness of the welding object of present embodiment is 2.0mm～3.0mm, and the difference of the welding method and the specific embodiment one is,
In the warm of step 3, adopt the level Four preheating, every grade of line that adopts 2mA, 4mA, 6mA and 8mA respectively scans the other end from an end of weld seam;
In step 4, adopt the line of 16mA～32mA, the speed of welding of 5mm/s～10mm/s to weld;
In the back thermal process of step 5, adopt the level Four after heat, every grade of line that adopts 8mA, 6mA, 4mA, 2mA respectively scans the other end from an end of weld seam.
The specific embodiment three: the difference of the present embodiment and the specific embodiment one is that the thickness of institute's welding object is 0.8mm～2.0mm, and the difference of the welding method and the specific embodiment one is,
In the warm of step 3, adopt the two-stage preheating, every grade of line that adopts 2mA respectively scans the other end from an end of weld seam;
In step 4, adopt the line of 2mA～8mA, the speed of welding of 5mm/s～15mm/s that the welding position is welded;
In the back thermal process of step 5, adopt the level Four after heat, every grade of line that adopts 4mA, 4mA, 2mA, 2mA respectively scans the other end from an end of weld seam.
The specific embodiment four: the difference of the present embodiment and the specific embodiment one is that the thickness of institute's welding object is 3.0mm～5.0mm, and the difference of the welding method and the specific embodiment one is,
In the warm of step 3, adopt six grades of preheatings, every grade of line that adopts 2mA, 4mA, 6mA, 8mA, 9mA, 10mA respectively scans the other end from an end of weld seam;
In step 4, adopt the line of 24mA～50mA that the welding position is welded, speed of welding is 2mm/s～10mm/s;
In the back thermal process of step 5, adopt six grades of after heat, every grade of line that adopts 10mA, 9mA, 8mA, 6mA, 4mA, 2mA respectively scans the other end from an end of weld seam.
The specific embodiment five: the material composition of the heat insulation backing plate described in the specific embodiment one described step 1 is silica and silicate.
The good heat-insulation effect of the heat insulation backing plate of present embodiment, can prevent effectively that the heat that produces owing to welding on the soldered object is transmitted on the welding machine clamp base, reduced the loss of energy on the one hand, also prevented on the other hand because the heat of welding machine clamp base causes the joint cooling velocity to increase.
The specific embodiment six: the difference of the present embodiment and the specific embodiment one to five is, after step 5 is finished, carries out the technology of step 6, stress relief annealing, and welding object is heated to 900 ℃, and insulation 10h cools off with stove then.
The specific embodiment seven: TiAl intermetallic compound electron beam welding thermal cycle composite control method, its welding object are the tubing of the TiAl intermetallic compound of the thick 0.8mm～3.5mm of being of two endwalls, and the weld seam of welding is a circular weld, and concrete steps are:
Step 1, will remove internal stress, the smooth cleaning of surface to be welded two welding objects with anchor clamps fixing before, fixing thermal insulation board between anchor clamps and welding object;
Step 2, welding object implement is clamped, described anchor clamps adopt the mode that axially clamps to welding object;
Step 3,5 * 10
-2Pa to 5 * 10
-4Under the atmospheric pressure of Pa, adopt to defocus place to be welded is carried out multiple scanning, classification preheating, each grade adopts the line that increases progressively successively from small to large among 2mA～10mA around the circular weld run-down respectively; Accelerating potential is 50kV～55kV, focus current 3350mA, and sweep speed is 2mm/s～8mm/s;
Step 4, step 3 are welded after finishing immediately, and accelerating potential is identical with step 3, and focus current is 2590mA, and line is 2mA～32mA, and speed of welding is 2mm/s～10mm/s;
After step 5, step 4 are finished, the weld seam that welding is finished adopts to defocus and carries out the classification after heat immediately, each grade adopts the line that successively decreases successively from big to small among 10mA～2mA around the circular weld run-down respectively, accelerating potential is identical with step 3, focus current is 3350mA, and sweep speed is 2mm/s～12mm/s.
The composition of the described TiAl intermetallic compound of present embodiment comprises: Ti:48～65at.%, Al:35～51at.% can also comprise V:1.0～9.0at.% or Cr:1.5～2.5at.% or Nb:1.5～5.0at.%.
In the step 1 of present embodiment, fixing thermal insulation board between anchor clamps and welding object in order to the conduction of the heat between restriction welding object and the anchor clamps, reduces the cooling velocity of postwelding joint.
In the step 2 of present embodiment, only step up power, avoided the thermal cycle cooling stage to produce bigger constraint stress axially applying of welding object.
Present embodiment is from the thermal cycle of step 3 to five minute three phases programming continuous control whole welding process, make weld seam and temperature on every side thereof remain the state of slow transition, prevented from effectively to produce the situation of macroscopic cracking on every side owing to temperature jump causes weld seam.
The specific embodiment eight: the pipe thickness of the welding object of present embodiment is 0.8mm～1.5mm, is with the difference of the specific embodiment seven described methods,
In the warm of step 3, adopt the secondary preheating, every grade of line that all adopts 2mA is around the circular weld run-down;
In step 4, adopt the line of 2mA～8mA to weld;
In the back thermal process of step 5, adopt the level Four after heat, every grade of line that adopts 4mA, 2mA, 2mA, 2mA respectively is around the circular weld run-down.
The specific embodiment nine: the pipe thickness of the welding object of present embodiment is 2.0mm～3.5mm, is with the difference of the specific embodiment seven described methods,
In the warm of step 3, adopt the level Four preheating, every grade of line that all adopts 2mA, 2mA, 4mA, 6mA is around the circular weld run-down;
In step 4, adopt the line of 10mA～32mA to weld;
In the back thermal process of step 5, adopt six grades of after heat, every grade of line that adopts 6mA, 5mA, 4mA, 3mA, 2mA, 2mA respectively is around the circular weld run-down.
The specific embodiment ten: in the specific embodiment seven to nine, after step 5, increase step 6, stress relief annealing technology, welding object is heated to 900 ℃, insulation 10h cools off with stove then.
Claims (8)
1, TiAl intermetallic compound electron beam welding thermal cycle composite control method, its welding object is two plate objects that thickness is 0.8mm～5.0mm, it is characterized in that concrete steps are:
Step 1, will remove internal stress, the smooth cleaning of surface to be welded the sheet material of two TiAl intermetallic compounds with anchor clamps fixing before, between welding machine clamp base and each welding object, fix a thermal insulation board respectively;
Step 2, welding object implement is clamped, described anchor clamps only apply clamping force in the welding object direction parallel with weld seam;
Step 3,5 * 10
-2Pa to 5 * 10
-4Under the atmospheric pressure of Pa, employing defocuses carries out shuttle-scanning, classification preheating to place to be welded, each grade adopts the line that increases progressively successively from small to large among 2mA～12mA to scan the other end from an end of weld seam respectively, accelerating potential is 50kV～55kV, focus current 3370mA, sweep speed is 2mm/s～10mm/s;
Step 4, step 3 are welded after finishing immediately, and accelerating potential is identical with step 3, and focus current is 2590mA, and line is 3mA～50mA, and speed of welding is 2mm/s～15mm/s;
After step 5, step 4 are finished, employing immediately defocuses butt welded seam and carries out the classification after heat, each grade adopts the line that successively decreases successively from big to small among 12mA～1mA to scan the other end from an end of weld seam respectively, accelerating potential is identical with step 3, focus current is 3370mA, and sweep speed is 2mm/s～20mm/s;
The composition of described nAl intermetallic compound comprises: Ti:48～65at.%, Al:35～51at.% can also comprise V:1.0～9.0at.% or Cr:1.5～2.5at.% or Nb:1.5～5.0at.%.
2, TiAl intermetallic compound electron beam welding thermal cycle composite control method according to claim 1, the material composition that it is characterized in that described heat insulation backing plate is silica and silicate.
3, TiAl intermetallic compound electron beam welding thermal cycle composite control method according to claim 1, the thickness that it is characterized in that welding object is 2.0mm～3.0mm, welding method is:
In the warm of step 3, adopt the level Four preheating, every grade of line that adopts 2mA, 4mA, 6mA and 8mA respectively scans the other end from an end of weld seam;
In step 4, adopt the line of 16mA～32mA, the speed of welding of 5mm/s～10mm/s to weld;
In the back thermal process of step 5, adopt the level Four after heat, every grade of line that adopts 8mA, 6mA, 4mA, 2mA respectively scans the other end from an end of weld seam.
4, TiAl intermetallic compound electron beam welding thermal cycle composite control method according to claim 1, the thickness that it is characterized in that institute's welding object is 0.8mm～2.0mm, welding method is:
In the warm of step 3, adopt the two-stage preheating, every grade of line that adopts 2mA respectively scans the other end from an end of weld seam;
In step 4, adopt the line of 2mA～8mA, the speed of welding of 5mm/s～15mm/s that the welding position is welded;
In the back thermal process of step 5, adopt the level Four after heat, every grade of line that adopts 4mA, 4mA, 2mA, 2mA respectively scans the other end from an end of weld seam.
5, TiAl intermetallic compound electron beam welding thermal cycle composite control method according to claim 1, the thickness that it is characterized in that institute's welding object is 3.0mm～5.0mm, welding method is:
In the warm of step 3, adopt six grades of preheatings, every grade of line that adopts 2mA, 4mA, 6mA, 8mA, 9mA, 10mA respectively scans the other end from an end of weld seam;
In step 4, adopt the line of 24mA～50mA that the welding position is welded, speed of welding is 2mm/s～10mm/s;
In the back thermal process of step 5, adopt six grades of after heat, every grade of line that adopts 10mA, 9mA, 8mA, 6mA, 4mA, 2mA respectively scans the other end from an end of weld seam.
6, TiAl intermetallic compound electron beam welding thermal cycle composite control method, its welding object are that two root canal wall thickness are the tubing of the TiAl intermetallic compound of 0.8mm～3.5mm, and the weld seam of welding is a circular weld, it is characterized in that concrete steps are:
Step 1, will remove internal stress, the smooth cleaning of surface to be welded two welding objects with anchor clamps fixing before, fixing thermal insulation board between anchor clamps and welding object;
Step 2, welding object implement is clamped, described anchor clamps adopt the mode that axially clamps to welding object;
Step 3,5 * 10
-2Pa to 5 * 10
-4Under the atmospheric pressure of Pa, adopt to defocus place to be welded is carried out multiple scanning, classification preheating, each grade adopts the line that increases progressively successively from small to large among 2mA～10mA around the circular weld run-down respectively; Accelerating potential is 50kV～55kV, focus current 3350mA, and sweep speed is 2mm/s～8mm/s;
Step 4, step 3 are welded after finishing immediately, and accelerating potential is identical with step 3, and focus current is 2590mA, and line is 2mA～32mA, and speed of welding is 2mm/s～10mm/s;
After step 5, step 4 are finished, the weld seam that welding is finished adopts to defocus and carries out the classification after heat immediately, each grade adopts the line that successively decreases successively from big to small among 10mA～2mA around the circular weld run-down respectively, accelerating potential is identical with step 3, focus current is 3350mA, sweep speed is 2mm/s～12mm/s
The composition of described TiAl intermetallic compound comprises: Ti:48～65at.%, Al:35～51at.% can also comprise V:1.0～9.0at.% or Cr:1.5～2.5at.% or Nb:1.5～5.0at.%.
7, TiAl intermetallic compound electron beam welding thermal cycle composite control method according to claim 6, the pipe thickness that it is characterized in that welding object is 0.8mm～1.5mm, concrete welding method is:
In the warm of step 3, adopt the secondary preheating, every grade of line that all adopts 2mA is around the circular weld run-down;
In step 4, adopt the line of 2mA～8mA to weld;
In the back thermal process of step 5, adopt the level Four after heat, every grade of line that adopts 4mA, 2mA, 2mA, 2mA respectively is around the circular weld run-down.
8, TiAl intermetallic compound electron beam welding thermal cycle composite control method according to claim 6, the pipe thickness that it is characterized in that welding object is 2.0mm～3.5mm,
In the warm of step 3, adopt the level Four preheating, every grade of line that all adopts 2mA, 2mA, 4mA, 6mA is around the circular weld run-down;
In step 4, adopt the line of 10mA～32mA to weld;
In the back thermal process of step 5, adopt six grades of after heat, every grade of line that adopts 6mA, 5mA, 4mA, 3mA, 2mA, 2mA respectively is around the circular weld run-down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710072370A CN100584507C (en) | 2007-06-18 | 2007-06-18 | TiAl intermetallic compound electron beam welding thermal cycle composite control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710072370A CN100584507C (en) | 2007-06-18 | 2007-06-18 | TiAl intermetallic compound electron beam welding thermal cycle composite control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101073849A true CN101073849A (en) | 2007-11-21 |
| CN100584507C CN100584507C (en) | 2010-01-27 |
Family
ID=38975205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710072370A Expired - Fee Related CN100584507C (en) | 2007-06-18 | 2007-06-18 | TiAl intermetallic compound electron beam welding thermal cycle composite control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100584507C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880794A (en) * | 2010-07-12 | 2010-11-10 | 哈尔滨工业大学 | Beta type gamma-TiAl alloy and preparation method thereof |
| CN102649192A (en) * | 2012-04-28 | 2012-08-29 | 西安航天动力机械厂 | Method of vacuum electron beam butt welding in condition of superstandard assembling clearance |
| CN102941387A (en) * | 2012-12-07 | 2013-02-27 | 中国船舶重工集团公司第七一二研究所 | Welding device and method for superconducting lines |
| CN102962592A (en) * | 2012-12-14 | 2013-03-13 | 哈尔滨工业大学 | Electronic beam aided hot extrusion diffusion connection method for SiCp/Al composite material |
| CN104289807A (en) * | 2014-09-29 | 2015-01-21 | 中国航空工业集团公司北京航空制造工程研究所 | Welding backing strip and welding method |
| CN104439675A (en) * | 2014-10-28 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for controlling electron beam weld quenching brittle crack of hydraulic actuator cylinder |
| CN107552961A (en) * | 2017-10-19 | 2018-01-09 | 上海交通大学 | A kind of method of LASER BEAM WELDING TiAl alloy |
| CN107790882A (en) * | 2017-09-29 | 2018-03-13 | 西安交通大学 | A kind of molybdenum and molybdenum alloy method for laser welding based on thermal cycle regulation and control |
| CN109483146A (en) * | 2018-10-15 | 2019-03-19 | 中国航发北京航空材料研究院 | A method of repairing Intermatallic Ti-Al compound casting defect |
| CN110142495A (en) * | 2019-06-05 | 2019-08-20 | 哈尔滨工业大学 | A kind of titanium-aluminium alloy electro-beam welding method reducing base material dilution rate |
| CN113210830A (en) * | 2021-05-21 | 2021-08-06 | 北京航星机器制造有限公司 | Vacuum electron beam welding method for additive manufacturing and forming gamma-TiAl intermetallic compound |
-
2007
- 2007-06-18 CN CN200710072370A patent/CN100584507C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880794A (en) * | 2010-07-12 | 2010-11-10 | 哈尔滨工业大学 | Beta type gamma-TiAl alloy and preparation method thereof |
| CN102649192A (en) * | 2012-04-28 | 2012-08-29 | 西安航天动力机械厂 | Method of vacuum electron beam butt welding in condition of superstandard assembling clearance |
| CN102649192B (en) * | 2012-04-28 | 2014-07-09 | 西安航天动力机械厂 | Method of vacuum electron beam butt welding in condition of superstandard assembling clearance |
| CN102941387A (en) * | 2012-12-07 | 2013-02-27 | 中国船舶重工集团公司第七一二研究所 | Welding device and method for superconducting lines |
| CN102941387B (en) * | 2012-12-07 | 2015-07-22 | 中国船舶重工集团公司第七一二研究所 | Welding device and method for superconducting lines |
| CN102962592A (en) * | 2012-12-14 | 2013-03-13 | 哈尔滨工业大学 | Electronic beam aided hot extrusion diffusion connection method for SiCp/Al composite material |
| CN104289807A (en) * | 2014-09-29 | 2015-01-21 | 中国航空工业集团公司北京航空制造工程研究所 | Welding backing strip and welding method |
| CN104289807B (en) * | 2014-09-29 | 2017-02-01 | 中国航空工业集团公司北京航空制造工程研究所 | Welding backing strip and welding method |
| CN104439675B (en) * | 2014-10-28 | 2016-07-06 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of hydraulic actuator electron beam weld that controls hardens the method for brittle crack |
| CN104439675A (en) * | 2014-10-28 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for controlling electron beam weld quenching brittle crack of hydraulic actuator cylinder |
| CN107790882A (en) * | 2017-09-29 | 2018-03-13 | 西安交通大学 | A kind of molybdenum and molybdenum alloy method for laser welding based on thermal cycle regulation and control |
| CN107790882B (en) * | 2017-09-29 | 2020-05-22 | 西安交通大学 | Molybdenum and molybdenum alloy laser welding method based on thermal cycle regulation |
| CN107552961A (en) * | 2017-10-19 | 2018-01-09 | 上海交通大学 | A kind of method of LASER BEAM WELDING TiAl alloy |
| CN109483146A (en) * | 2018-10-15 | 2019-03-19 | 中国航发北京航空材料研究院 | A method of repairing Intermatallic Ti-Al compound casting defect |
| CN109483146B (en) * | 2018-10-15 | 2020-06-09 | 中国航发北京航空材料研究院 | Method for repairing defects of titanium-aluminum intermetallic compound casting |
| CN110142495A (en) * | 2019-06-05 | 2019-08-20 | 哈尔滨工业大学 | A kind of titanium-aluminium alloy electro-beam welding method reducing base material dilution rate |
| CN113210830A (en) * | 2021-05-21 | 2021-08-06 | 北京航星机器制造有限公司 | Vacuum electron beam welding method for additive manufacturing and forming gamma-TiAl intermetallic compound |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100584507C (en) | 2010-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101073849A (en) | Composite method for controlling electronic-beam welding thermal circulation of TiAl intermetallic compound | |
| CN101073850A (en) | Composite method for controlling electronic-beam welding thermal circulation of TiA/TiAl heterolytic material | |
| CN100462178C (en) | Compound control method for heat cycle of electron beam welding TiAl / TC4 heterogeneous materials | |
| CN100358666C (en) | Electron beam welding method of adding transition layer into compound between metals of titanium aluminium alloy | |
| KR101057068B1 (en) | Welding seams of non-eutectic structures of copper-aluminum thin-walled pipes and methods for their preparation | |
| CN1954959A (en) | Al-Mg-Sc series solder wire | |
| CN101920391B (en) | Electron beam welding method for dissimilar materials of nickel-aluminum bronze alloy and TC4 titanium alloy | |
| CN1876302A (en) | Aluminum alloy and its composite material non-vacuum semi-solid state vibration-rheological connection method | |
| CN102275022B (en) | Connecting method of C/C composite material and copper or copper alloy | |
| CN102962592B (en) | Electronic beam aided hot extrusion diffusion connection method for SiCp/Al composite material | |
| CN1651175A (en) | Magnesium alloy thin plate vacuum diffusion welding method | |
| CN101259567A (en) | Method for using ultrasonic vibration to process plug welding porous structure aluminium base composite material | |
| CN112517924B (en) | Electric arc additive manufacturing method based on reverse compensation | |
| CN108421948B (en) | A kind of high-strength light sheet metal warm self-piercing riveting method and device | |
| CN101913022B (en) | Method for welding dissimilar materials of TA15 titanium alloy and chromium bronze through electron beams | |
| CN101934424B (en) | TB5/copper alloy vacuum electron beam welding method | |
| CN103008869A (en) | Electron beam pressurizing connection method for aluminum alloy and particle-reinforced aluminum matrix composite material | |
| CN110142496B (en) | TiAl/Ti added with Y-shaped intermediate layer3Electron beam welding method for Al dissimilar material | |
| CN102284758B (en) | Magnesium alloy and aluminum alloy heterogeneous non-vacuum machinery forced rotation semi-solid brazing method | |
| CN101913021A (en) | Superposing and welding method of electron beams of chromium bronze and two-phase titanium alloy dissimilar materials | |
| CN1294002C (en) | Production process and apparatus for ultrasonic fusing type radiation crosslinking polyolefin thermal shrinkable sleeve | |
| CN110142495B (en) | Titanium-aluminum alloy electron beam welding method for reducing dilution rate of parent metal | |
| CN105269105A (en) | High-silicon aluminum alloy welding method for forming particle-reinforced weld joints through thermo-acoustic coupling | |
| CN1267240C (en) | Angular end-to-end welding method for super long and thick steel plates | |
| CN101966622B (en) | Laser welding and postweld heat treatment method for Tisub3/subAl-based alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20100618 |