CN104741768A - Friction stir welding process of (W, CeO2)P/2A12Al system composite material - Google Patents
Friction stir welding process of (W, CeO2)P/2A12Al system composite material Download PDFInfo
- Publication number
- CN104741768A CN104741768A CN201310737329.1A CN201310737329A CN104741768A CN 104741768 A CN104741768 A CN 104741768A CN 201310737329 A CN201310737329 A CN 201310737329A CN 104741768 A CN104741768 A CN 104741768A
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- CN
- China
- Prior art keywords
- 2a12al
- welding
- ceo
- friction stir
- stir welding
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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
- B23K20/12—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
- B23K20/1245—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 characterised by the 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention provides a friction stir welding process of a (W, CeO2)P/2A12Al system composite material; the friction stir welding is performed for the (W, CeO2)P/2A12Al composite material after the molding, the deformation processing and the annealing treatment; and the friction stir welding comprises the process conditions of: 900-1400 rpm of rotating speed of a stirring head in welding and 80-120 mm/min of welding speed. The friction stir welding process can realize the solid-phase connection of the (W, CeO2)P/2A12Al composite material, is low in welding temperature, and can effectively restrain the interface reaction between W and a 2Al2Al basal body to prevent an reaction product from damaging the mechanical performance of a welding line of the composite material.
Description
Technical field
The present invention relates to a kind of welding procedure, particularly a kind of (W, CeO
2)
pthe Friction stir welding of/2A12Al system composite.
Background technology
(W, CeO
2)
p/ 2A12Al system composite is a kind of Metal Substrate functional composite material of new structure/function integration, has good X-ray shielding properties and higher mechanical property, can be used for manufacturing radiation shield and radiation hardening parts etc.As a kind of novel metal base functional composite material, welding and interconnection technique are (W, CeO reliably
2)
p/ 2A12Al system composite is able to the important prerequisite of extensive use.
At present, what the welding application for particle enhanced aluminum-based composite material was more is melting, as argon tungsten-arc welding (TIG), gas metal-arc welding (MIG), Transient Liquid-phase Bonding (TLP) etc.When using melting welding particle enhanced aluminum-based composite material, weld seam temperature is higher, and parent metal melts, and will cause the problems such as the thick and interfacial reaction of the segregation of wild phase, mother metal matrix grain, thus affects welding quality.Particularly for (W, CeO
2)
p/ 2A12Al system composite, the frangible compounds that interfacial reaction generates can have a strong impact on the mechanical property of composite.Therefore, (W, CeO
2)
p/ 2A12Al system composite is not suitable for adopting melting method to weld.
Friction stir welding is a kind of novel Solid-phase welding technology, within 1991, welds institute of welding by Britain and invents.This technology is the position to be welded utilizing the stirring-head of High Rotation Speed to insert workpiece, welding position metal is in hot plastic state and makes Plastic Flow from the front end of stirring-head to the back-end and forms weld seam under the friction of stirring-head and the effect of stirring, thus realizes solid diffusivity.Friction stir welding has that metal material is non-fusible, welding contraction distortion is little, mechanical property loss is low and the advantage such as environmental protection, and since appearance, development rapidly, in field extensive application such as Aero-Space, boats and ships, automobile, war industrys.
Summary of the invention
The object of the present invention is to provide one (W, CeO
2)
pthe Friction stir welding of/2A12Al system composite.
For achieving the above object, the present invention is by the following technical solutions:
A kind of (W, CeO
2)
pthe Friction stir welding of/2A12Al system composite, by (W, CeO
2)
p/ 2A12Al composite carries out friction stir welding and connects after shaping, deformation processing, annealing in process, and the process conditions of agitating friction welding are: during welding, the rotating speed of stirring-head is 900 ~ 1400rpm, and speed of welding is 80 ~ 120mm/min.
Wherein, described stirring-head is stepped cylindrical stirring-head, and the diameter of the stirring-head shaft shoulder is 12mm, and the diameter of mixing needle is 5mm, and the length of mixing needle is 4.8mm.
Preferably, described (W, CeO
2)
pthe composition of/2A12Al composite is 30wt.%W, 4.5wt.%CeO
2, surplus 2A12Al alloy.
Preferably, described (W, CeO
2)
p/ 2A12Al composite adopts hot isostatic pressing method or vacuum hot-pressing to prepare shaping.
Preferably, described deformation processing method is forging and stamping or hot extrusion.
The invention has the advantages that:
The present invention can realize (W, CeO
2)
pthe solid diffusivity of/2A12Al composite, welding temperature is low, effectively can suppress the interfacial reaction of W and 2A12Al matrix, avoids product to the infringement of composite weld properties.
Detailed description of the invention
The invention will be further described by the following examples.
Embodiment 1
Adopt vacuum hot-pressing preparation (30wt.%W, 4.5wt.%CeO
2)/2A12Al composite, carries out friction stir welding and connects after annealing in process.During welding, stirring-head rotating speed is 1400rpm, and speed of welding is 120mm/min.Carry out T4 heat treatment after welding, the tensile strength of material is 375MPa, and yield strength is 237MPa, and percentage elongation is 4%.Butt welded seam carries out XRD detection and does not find interfacial reaction products.
Embodiment 2
Adopt hot isostatic pressing method preparation (30wt.%W, 4.5wt.%CeO
2)/2A12Al composite, through hot extrusion deformation, then carries out annealing in process, then carries out agitating friction welding.During welding, stirring-head rotating speed is 1400rpm, and speed of welding is 100mm/min.Carry out T4 heat treatment after welding, the tensile strength of material is 387MPa, and yield strength is 238MPa, and percentage elongation is 8%.Butt welded seam carries out XRD detection and does not find interfacial reaction products.
Embodiment 3
Adopt hot isostatic pressing method preparation (30wt.%W, 4.5wt.%CeO
2)/2A12Al composite, carries out friction stir welding and connects after annealing in process.During welding, stirring-head rotating speed is 1400rpm, and speed of welding is 80mm/min.Carry out T4 heat treatment after welding, the tensile strength of material is 391MPa, and yield strength is 241MPa, and percentage elongation is 8%.Butt welded seam carries out XRD detection and does not find interfacial reaction products.
Embodiment 4
Adopt hot isostatic pressing method preparation (30wt.%W, 4.5wt.%CeO
2)/2A12Al composite, through swaging deformation, then carries out annealing in process, then carries out agitating friction welding.During welding, stirring-head rotating speed is 1300rpm, and speed of welding is 100mm/min.Carry out T4 heat treatment after welding, the tensile strength of material is 416MPa, and yield strength is 272MPa, and percentage elongation is 9%.Butt welded seam carries out XRD detection and does not find interfacial reaction products.
Embodiment 5
Adopt hot isostatic pressing method preparation (30wt.%W, 4.5wt.%CeO
2)/2A12Al composite, through hot extrusion deformation, then carries out annealing in process, then carries out agitating friction welding.During welding, stirring-head rotating speed is 1100rpm, and speed of welding is 100mm/min.Carry out T4 heat treatment after welding, the tensile strength of material is 418MPa, and yield strength is 280MPa, and percentage elongation is 10%.Butt welded seam carries out XRD detection and does not find interfacial reaction products.
Embodiment 6
Adopt hot isostatic pressing method preparation (30wt.%W, 4.5wt.%CeO
2)/2A12Al composite, through hot extrusion deformation, then carries out annealing in process, then carries out agitating friction welding.During welding, stirring-head rotating speed is 900rpm, and speed of welding is 120mm/min.Carry out T4 heat treatment after welding, the tensile strength of material is 421MPa, and yield strength is 275MPa, and percentage elongation is 9%.Butt welded seam carries out XRD detection and does not find interfacial reaction products.
Embodiment 7
Adopt hot isostatic pressing method preparation (30wt.%W, 4.5wt.%CeO
2)/2A12Al composite, through hot extrusion deformation, then carries out annealing in process, then carries out agitating friction welding.During welding, stirring-head rotating speed is 900rpm, and speed of welding is 100mm/min.Carry out T4 heat treatment after welding, the tensile strength of material is 438MPa, and yield strength is 297MPa, and percentage elongation is 9.5%.Butt welded seam carries out XRD detection and does not find interfacial reaction products.
Embodiment 8
Adopt hot isostatic pressing method preparation (30wt.%W, 4.5wt.%CeO
2)/2A12Al composite, through hot extrusion deformation, then carries out annealing in process, then carries out agitating friction welding.During welding, stirring-head rotating speed is 900rpm, and speed of welding is 80mm/min.Carry out T4 heat treatment after welding, the tensile strength of material is 427MPa, and yield strength is 282MPa, and percentage elongation is 10%.Butt welded seam carries out XRD detection and does not find interfacial reaction products.
(30wt.%W, 4.5wt.%CeO of relating in above-described embodiment
2)/2A12Al composite, its composition is (W, CeO just
2)
pone in/2A12Al composite system.The welding condition related in the present invention is only the preferably parameter area being applicable to this composition composite, and be not used to limit the present invention, any those skilled in the art, according to technical solution of the present invention essence, realize (W, CeO by adjustment welding condition
2)
pthe welding of other composite material in/2A12Al composite system.All according to technical solution of the present invention essence, simple modification, equivalent variations and modification are carried out to above-described embodiment, all still belongs within the scope of technical solution of the present invention.
Claims (6)
1. (W, CeO
2)
pthe Friction stir welding of/2A12Al system composite, is characterized in that, by (W, CeO
2)
p/ 2A12Al composite carries out friction stir welding and connects after shaping, deformation processing, annealing in process, and the process conditions of agitating friction welding are: during welding, the rotating speed of stirring-head is 900 ~ 1400rpm, and speed of welding is 80 ~ 120mm/min.
2. (W, CeO according to claim 1
2)
pthe Friction stir welding of/2A12Al system composite, is characterized in that, described stirring-head is stepped cylindrical stirring-head, and the diameter of the stirring-head shaft shoulder is 12mm, and the diameter of mixing needle is 5mm, and the length of mixing needle is 4.8mm.
3. (W, CeO according to claim 1
2)
pthe Friction stir welding of/2A12Al system composite, is characterized in that, described (W, CeO
2)
pthe composition of/2A12Al composite is 30wt.%W, 4.5wt.%CeO
2, surplus 2A12Al alloy.
4. (W, CeO according to claim 1 or 2 or 3
2)
pthe Friction stir welding of/2A12Al system composite, is characterized in that, described (W, CeO
2)
p/ 2A12Al composite adopts hot isostatic pressing method or vacuum hot-pressing to prepare shaping.
5. (W, CeO according to claim 1 or 2 or 3
2)
pthe Friction stir welding of/2A12Al system composite, is characterized in that, described deformation processing method is forging and stamping or hot extrusion.
6. (W, CeO according to claim 1 or 2 or 3
2)
pthe Friction stir welding of/2A12Al system composite, is characterized in that, occurs after described material welding without interfacial reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737329.1A CN104741768A (en) | 2013-12-26 | 2013-12-26 | Friction stir welding process of (W, CeO2)P/2A12Al system composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737329.1A CN104741768A (en) | 2013-12-26 | 2013-12-26 | Friction stir welding process of (W, CeO2)P/2A12Al system composite material |
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| Publication Number | Publication Date |
|---|---|
| CN104741768A true CN104741768A (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310737329.1A Pending CN104741768A (en) | 2013-12-26 | 2013-12-26 | Friction stir welding process of (W, CeO2)P/2A12Al system composite material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425082A (en) * | 2016-12-01 | 2017-02-22 | 中国科学院金属研究所 | Welding method of high-volume-fraction particle reinforced aluminum base composite material |
| CN114054937A (en) * | 2022-01-11 | 2022-02-18 | 西安稀有金属材料研究院有限公司 | Friction stir welding method and strengthening process of tungsten-boron-aluminum composite shielding material |
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| JP2007105735A (en) * | 2005-10-11 | 2007-04-26 | Hitachi Ltd | Friction welding method |
| CN101157157A (en) * | 2007-11-13 | 2008-04-09 | 江苏科技大学 | Method of welding L type aluminum alloy section agitating friction welding |
| CN101450418A (en) * | 2007-11-30 | 2009-06-10 | 中国科学院金属研究所 | Stirring friction-welding technique capable of increasing weldability of aluminum base composite material |
| CN102107327A (en) * | 2009-12-23 | 2011-06-29 | 中国科学院金属研究所 | Process for improving strength of friction stir welding (FSM) joint for discontinuously reinforced aluminum (DRA) matrix composites |
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2013
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Patent Citations (4)
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| JP2007105735A (en) * | 2005-10-11 | 2007-04-26 | Hitachi Ltd | Friction welding method |
| CN101157157A (en) * | 2007-11-13 | 2008-04-09 | 江苏科技大学 | Method of welding L type aluminum alloy section agitating friction welding |
| CN101450418A (en) * | 2007-11-30 | 2009-06-10 | 中国科学院金属研究所 | Stirring friction-welding technique capable of increasing weldability of aluminum base composite material |
| CN102107327A (en) * | 2009-12-23 | 2011-06-29 | 中国科学院金属研究所 | Process for improving strength of friction stir welding (FSM) joint for discontinuously reinforced aluminum (DRA) matrix composites |
Non-Patent Citations (2)
| Title |
|---|
| 汪山山: "旋转速度对(WC+B4C)p/6063Al复合材料搅拌摩擦焊接头力学性能和微观组织的影响", 《稀有金属》 * |
| 陈雷: "(W+CeO2)p/2024Al复合材料锻造性能研究", 《兵器材料科学与工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425082A (en) * | 2016-12-01 | 2017-02-22 | 中国科学院金属研究所 | Welding method of high-volume-fraction particle reinforced aluminum base composite material |
| CN114054937A (en) * | 2022-01-11 | 2022-02-18 | 西安稀有金属材料研究院有限公司 | Friction stir welding method and strengthening process of tungsten-boron-aluminum composite shielding material |
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Application publication date: 20150701 |