CN102626822A - Hollow variable-diameter porous friction head and preparation method for surface composite material of metal material - Google Patents
Hollow variable-diameter porous friction head and preparation method for surface composite material of metal material Download PDFInfo
- Publication number
- CN102626822A CN102626822A CN2012100879058A CN201210087905A CN102626822A CN 102626822 A CN102626822 A CN 102626822A CN 2012100879058 A CN2012100879058 A CN 2012100879058A CN 201210087905 A CN201210087905 A CN 201210087905A CN 102626822 A CN102626822 A CN 102626822A
- Authority
- CN
- China
- Prior art keywords
- friction head
- hole
- preparation
- duct
- internal diameter
- 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
Images
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to a hollow variable-diameter porous friction head and a preparation method for a surface composite material of a metal material, particularly relates to the friction stir welding friction head and a welding method, and solves the problem that for preparation of a metal matrix composite material, an enhanced phase is distributed unevenly because particles are splashed and translated in a material processing process caused by the fact that the enhanced phase is needed to be placed in a material to be processed. A welding tool comprises an upper cylinder body and a lower cylinder body which are vertically arranged and made into a whole, the upper cylinder body and the lower cylinder body are provided with an upper hole channel and a middle hole channel respectively along axes, four horizontal through holes are all communicated with the middle hole channel, each horizontal through hole is communicated with two lower vertical hole channels, a variable-diameter sheet is arranged at the bottom of the upper hole channel, and the inner diameter of a variable-diameter hole is less than the inner diameter of the middle hole channel. The method includes: 1 determining geometric dimension of the friction head; 2 adding enhanced-phase particles; 3 adjusting a slant angle of the friction head; and 4 performing the friction stir processing on the surface of a workpiece to be processed, and achieving preparation of one surface composite material. The hollow variable-diameter porous friction head and the preparation method for the surface composite material of the metal material are used for preparation of surface composite material layers of the metal material.
Description
Technical field
The present invention relates to a kind of friction head and welding method of friction stir welding, especially a kind of method of utilizing agitating friction processing and preparing metal material surface composite.
Background technology
Agitating friction processing (Friction Stir Processing, FSP) technology is a kind of new material preparation and process technology, at present by successful Application to the preparation of metal-base composites.Agitating friction processing promptly is that the processing head that rotates at a high speed is pressed into the material surface millimeter level degree of depth, and advances along the material surface direction, causes material surface that violent plastic deformation takes place, thereby realizes fine and closely wovenization, the homogenising of surfacing.The method of utilizing FSP to carry out the metal-base composites preparation can be divided into two types, and indirect method and direct method, indirect method are meant mixes metal dust with the wild phase particle mutually, hot-forming, passes through the FSP process again.Direct method is meant the wild phase particle is preset in the sheet metal, carries out agitating friction processing again.Direct method is generally used in the preparation of Metal Substrate composite surface material, before the FSP processing, and fluting or blind hole on sheet material; And particle preset wherein; Carry out FSP processing again, use the composite surface material of this class methods preparation, its wild phase distributing homogeneity and dispersivity are undesirable.Analyze its reason and be that processing head adds man-hour to material surface, the wild phase particle is mostly concentrated and is placed groove or blind hole, the passing that therefore particle take place easily with do not disperse, cause wild phase distribute even inadequately and disperse.
Summary of the invention
The objective of the invention is to be applied in the preparation of metal-base composites for solving FSP; Need wild phase is preset in the material to be processed; Cause material in process; Splashing and passing of particle taken place, make the wild phase problem of uneven distribution, the preparation method of a kind of hollow reducing porous friction head and metal material surface composite is provided.
Friction head of the present invention comprises agitating friction body, reducing sheet and eight tight screws of envelope, and the agitating friction body is made up of last cylinder and following cylinder, and the said cylinder of going up is provided with and processes one up and down with following cylinder; Said cylindrical diameter is gone up cylindrical outer surface and is provided with clamping face less than following cylindrical diameter, and said cylindrical lower surface down is the spill shaft shoulder face that outward flange is higher than the center; The said cylinder of going up is provided with the duct with following cylinder along axis, and said duct is divided into two sections from top to bottom, is respectively duct and middle duct; The internal diameter in last duct on same cross section, be laid with four cross through hole on the said following cylinder, and four cross through hole communicates with middle duct all greater than the internal diameter in middle duct; The internal diameter in middle duct is less than the internal diameter of cross through hole; The two ends of each cross through hole are respectively equipped with screwed hole coaxial with it and that communicate, and the same circumference uniform distribution in following cylinder upper edge that is positioned at the cross through hole below is provided with eight following vertical core roads, and each cross through hole communicates with two following vertical core roads; The internal diameter in eight following vertical core roads equates; The internal diameter in vertical core road is threaded in each screwed hole one and seals tight screw less than the internal diameter of cross through hole under each, and the reducing sheet places the bottom in duct; The place, axle center of reducing sheet is provided with the reducing hole, and the internal diameter in reducing hole is less than the internal diameter in middle duct.
Method of the present invention realizes through following steps:
The inclination angle of step 3, adjustment friction head: the inclination angle of adjustment friction head is the central axis of friction head and the angle of pending workpiece normal, and adjusting this angle is 0 °～1 °;
The preparation process of step 4, pending surface of the work composite layer: agitating friction processing is carried out on the surface to workpiece to be handled, and detailed process is:
(1), friction head is moved to be processed surface, friction head is pressed in the pending surface of the work with 200 rev/mins～1800 rev/mins rotating speed, and the compression distance of spill shaft shoulder face is 0.2mm～1.2mm millimeter, is pressed into the back and stops 1 second～5 seconds;
(2), spill shaft shoulder face 2-1 is sealed, the friction head of rotation is pressed into pending surface of the work at a high speed, advances along finished surface again with aluminium foil; Aluminium foil fades away, the wild phase particle through last duct, middle duct, cross through hole get into cross through hole, along with the high speed rotation of friction head; The wild phase particle is got rid of to the two ends in cross-drilled hole road, and flows to the effect interface dispersedly along eight following vertical core roads, and is stirred and compress into metallic matrix; At this moment; The rotary speed of friction head is 200 rev/mins～1800 rev/mins, and the gait of march of friction head is 5 mm/min～200 mm/min, stops friction head and advances; And friction head risen leave work piece surface, promptly accomplished the preparation of one composite surface material in work piece surface.
The present invention has the following advantages: one, the last duct on the friction head of the present invention, middle duct, reducing hole, cross through hole and eight following vertical core roads constitute hollow reducing porous; Utilize hollow reducing porous friction head to carry out the preparation of FSP composite surface material; In the FSP process; Wild phase need not be preset in the material to be processed, but through hollow reducing porous equably, disperse ground flows into the effect interface of friction head and material to be processed, stirred by friction head again and compress into metallic matrix; Splashing and passing of particle can not take place in material in process; Wild phase through the metallic composite of the present invention preparation is evenly distributed and disperse.Two, the hollow reducing porous on the friction head strengthened the interpolation scope of wild phase particle, correspondingly increased the range of work that FSP prepares composite surface material, improved the preparation efficiency of composite surface material.Three,,, realize wild phase is added the control of speed through changing the reducing sheet of different size to different pending workpiece.Four, metal material surface Composite Preparation process of the present invention need not slotted or perforate at material surface to be processed, has simplified process, and therefore, the present invention will have wide practical use in actual production.
Description of drawings
Fig. 1 is overall structure master's cutaway view of hollow reducing porous friction head of the present invention; Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
The specific embodiment one: combine Fig. 1 and Fig. 2 that this embodiment is described, the friction head of this embodiment comprises agitating friction body, reducing sheet 4 and eight tight screws 5 of envelope, and agitating friction body 1 is made up of with following cylinder 2 last cylinder 1; The said cylinder 1 of going up is provided with and processes one up and down with following cylinder 2, the said diameter of going up the diameter of cylinder 1 less than following cylinder 2, and the outer surface of last cylinder 1 is provided with clamping face 1-1; The said lower surface of cylinder 2 down is the spill shaft shoulder face 2-1 that outward flange is higher than the center, and last cylinder 1 is provided with duct 3 with following cylinder 2 along axis, and said duct 3 is divided into two sections from top to bottom; Be respectively duct 3-1 and middle duct 3-2, duct 3 is used for the storage of wild phase particle, also is simultaneously the passage that wild phase gets into factory interface; Be installed before the friction head; In duct 3, add a certain amount of wild phase particle from the friction head upper end, the internal diameter of last duct 3-1 is laid with four cross through hole 2-2 greater than the internal diameter of middle duct 3-2 on the said following cylinder 2 on same cross section; And four cross through hole 2-2 all communicate with middle duct 3-2; The equal diameters of four cross through hole 2-2, four cross through hole 2-2 intersect at O point, and middle duct 3-2 passes through the point in O mutually with cross through hole 2-2; The internal diameter of middle duct 3-2 is less than the internal diameter of cross through hole 2-2; The two ends of each cross through hole 2-2 are respectively equipped with screwed hole 2-3 coaxial with it and that communicate, and the same circumference uniform distribution in following cylinder 2 upper edges that is positioned at cross through hole 2-2 below is provided with eight following vertical core road 2-4, and each cross through hole 2-2 communicates with two following vertical core road 2-4; The internal diameter of eight following vertical core road 2-4 equates; The internal diameter of vertical core road 2-4 is threaded one among each screwed hole 2-3 and seals tight screw 3 less than the internal diameter of cross through hole 2-2 under each, and reducing sheet 4 places the bottom of duct 3-1; The place, axle center of reducing sheet 4 is provided with reducing hole 4-1, and the internal diameter of reducing hole 4-1 is less than the internal diameter of middle duct 3-2.The external diameter of reducing sheet 4 is less than the internal diameter of last duct 3-1, therefore, and being stuck between duct 3-1 and the middle duct 3-2 of reducing sheet 4.
The specific embodiment two: combine Fig. 1 that this embodiment is described, the internal diameter of vertical core road 2-4 is less than the internal diameter of middle duct 3-2 under each of this embodiment.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: combine Fig. 1 that this embodiment is described, this embodiment is realized through following steps:
The inclination angle of step 3, adjustment friction head: the inclination angle of adjustment friction head is the central axis N-N of friction head and the angle of pending workpiece normal, and adjusting this angle is 0 °～1 °;
The preparation process of step 4, pending surface of the work composite layer: agitating friction processing is carried out on the surface to workpiece to be handled, and detailed process is:
(1), friction head is moved to be processed surface; Friction head is pressed in the pending surface of the work with 200 rev/mins～1800 rev/mins rotating speed; The compression distance of spill shaft shoulder face 2-1 is 0.2mm～1.2mm millimeter; Be pressed into the back and stopped 1 second～5 seconds, near to be processed surface temperature of friction head raise, plasticity strengthens;
(2), spill shaft shoulder face 2-1 is sealed, the friction head of rotation is pressed into pending surface of the work at a high speed, advances along finished surface again with aluminium foil; Aluminium foil fades away, and the wild phase particle gets into cross through hole 2-2 through last duct 3-1, middle duct 3-2, cross through hole 2-2, along with the high speed rotation of friction head; The wild phase particle is got rid of to the two ends of cross-drilled hole road 2-2, and flows to the effect interface dispersedly along eight following vertical core road 2-4, and is stirred and compress into metallic matrix; At this moment; The rotary speed of friction head is 200 rev/mins～1800 rev/mins, and the gait of march of friction head is 5 mm/min～200 mm/min, stops friction head and advances; And friction head risen leave work piece surface, promptly accomplished the preparation of one composite surface material in work piece surface.
The metallic composite that obtains through said method carries out the microstructure observation, very disperse of the wild phase that obtains distribution, even, and this sample recombination region crystal grain is also very fine and closely woven simultaneously, and the combination property of composite surface materialization is apparently higher than mother metal.
The specific embodiment four: this embodiment is that the inclination angle of friction head in the step 3 is 0.5 °; Other step is identical with the specific embodiment three.
The specific embodiment five: this embodiment is that friction head is pressed in the pending surface of the work with 500 rev/mins rotating speed in the step 4, and the compression distance of spill shaft shoulder face 2-1 is 0.5mm, is pressed into the back and stops 3 seconds.Other step is identical with the specific embodiment three.
The specific embodiment six: this embodiment is that friction head is pressed in the pending surface of the work with 800 rev/mins rotating speed in the step 4, and the compression distance of spill shaft shoulder face 2-1 is 1mm, is pressed into the back and stops 2 seconds.Other step is identical with the specific embodiment three.
The specific embodiment seven: this embodiment is that friction head is pressed in the pending surface of the work with 1000 rev/mins rotating speed in the step 4, and the compression distance of spill shaft shoulder face 2-1 is 0.8mm, is pressed into the back and stops 4 seconds.Other step is identical with the specific embodiment three.
The specific embodiment eight: this embodiment is that the rotary speed of friction head in the step 4 is 500 rev/mins, and the gait of march of friction head is 100 mm/min.Other step is identical with the specific embodiment three.
The specific embodiment nine: this embodiment is that the rotary speed of friction head in the step 4 is 1000 rev/mins, and the gait of march of friction head is 50 mm/min.Other step is identical with the specific embodiment three.
The specific embodiment ten: this embodiment is that the rotary speed of friction head in the step 4 is 1200 rev/mins, and the gait of march of friction head is 80 mm/min.Other step is identical with the specific embodiment three.
Claims (10)
1. hollow reducing porous friction head, said friction head comprise agitating friction body, reducing sheet (4) and eight envelope tight screws (5), and agitating friction body (1) is made up of last cylinder (1) and following cylinder (2); Said upward cylinder (1) and following cylinder (2) are provided with and process one up and down; The said diameter of going up the diameter of cylinder (1) less than following cylinder (2), the outer surface of last cylinder (1) is provided with clamping face (1-1), and the said lower surface of cylinder (2) down is the spill shaft shoulder face (2-1) that outward flange is higher than the center; It is characterized in that: said upward cylinder (1) and following cylinder (2) are provided with duct (3) along axis; Said duct (3) is divided into two sections from top to bottom, is respectively duct (3-1) and middle duct (3-2), and the internal diameter of last duct (3-1) is greater than the internal diameter of middle duct (3-2); Said cylinder (2) is down gone up and on same cross section, is laid with four cross through hole (2-2); And four cross through hole (2-2) all communicate with middle duct (3-2), and the internal diameter of middle duct (3-2) is less than the internal diameter of cross through hole (2-2), and the two ends of each cross through hole (2-2) are respectively equipped with screwed hole (2-3) coaxial with it and that communicate; The same circumference uniform distribution in following cylinder (2) upper edge that is positioned at cross through hole (2-2) below is provided with eight following vertical core roads (2-4); And each cross through hole (2-2) communicates with two following vertical core roads (2-4), and the internal diameter in eight following vertical core roads (2-4) equates that the internal diameter in vertical core road (2-4) is less than the internal diameter of cross through hole (2-2) under each; Be threaded one in each screwed hole (2-3) and seal tight screw (3); Reducing sheet (4) places the bottom of duct (3-1), and the place, axle center of reducing sheet (4) is provided with reducing hole (4-1), and the internal diameter of reducing hole (4-1) is less than the internal diameter of middle duct (3-2).
2. according to the said hollow reducing of claim 1 porous friction head, it is characterized in that: the internal diameter in vertical core road (2-4) is less than the internal diameter of middle duct (3-2) under each.
3. preparation method who utilizes the said hollow reducing of claim 1 porous friction head to realize the metal material surface composite, it is characterized in that: said method realizes through following steps:
Step 1, confirm the physical dimension of friction head: the diameter D that confirms the friction head shaft shoulder according to the width of pending workpiece one-time surface compositeization; The diameter D of the friction head shaft shoulder equates with the width of one-time surface compositeization; Confirm the internal diameter 0.1D～0.2D in vertical core road (2-4) down, the outward flange of spill shaft shoulder face (2-1) is than the high 0.2mm～1.5mm in center of spill shaft shoulder face (2-1);
Step 2, interpolation wild phase particle: upwards duct (3-1) adds the wild phase particle, will go up duct (3-1) and fill up;
The inclination angle of step 3, adjustment friction head: the inclination angle of adjustment friction head is the central axis (N-N) of friction head and the angle of pending workpiece normal, and adjusting this angle is 0 °～1 °;
The preparation process of step 4, pending surface of the work composite layer: agitating friction processing is carried out on the surface to workpiece to be handled, and detailed process is:
(1), friction head is moved to be processed surface, friction head is pressed in the pending surface of the work with 200 rev/mins～1800 rev/mins rotating speed, and the compression distance of spill shaft shoulder face (2-1) is 0.2mm～1.2mm millimeter, is pressed into the back and stops 1 second～5 seconds;
(2), spill shaft shoulder face (2-1) is sealed, the friction head of rotation is pressed into pending surface of the work at a high speed, advances along finished surface again with aluminium foil; Aluminium foil fades away, and (3-1), middle duct (3-2), cross through hole (2-2) get into cross through hole (2-2) to the wild phase particle through last duct, along with the high speed rotation of friction head; The wild phase particle is got rid of to the two ends of cross-drilled hole road (2-2), and (2-4) flows to the effect interface dispersedly along eight following vertical core roads, and is stirred and compress into metallic matrix; At this moment; The rotary speed of friction head is 200 rev/mins～1800 rev/mins, and the gait of march of friction head is 5 mm/min～200 mm/min, stops friction head and advances; And friction head risen leave work piece surface, promptly accomplished the preparation of one composite surface material in work piece surface.
4. according to the preparation method of the said metal material surface composite of claim 4, it is characterized in that: the inclination angle of friction head is 0.5 ° in the step 3.
5. according to the preparation method of the said metal material surface composite of claim 4; It is characterized in that: friction head is pressed in the pending surface of the work with 500 rev/mins rotating speed in the step 4; The compression distance of spill shaft shoulder face (2-1) is 0.5mm, is pressed into the back and stops 3 seconds.
6. according to the preparation method of the said metal material surface composite of claim 4; It is characterized in that: friction head is pressed in the pending surface of the work with 800 rev/mins rotating speed in the step 4; The compression distance of spill shaft shoulder face (2-1) is 1mm, is pressed into the back and stops 2 seconds.
7. according to the preparation method of the said metal material surface composite of claim 4; It is characterized in that: friction head is pressed in the pending surface of the work with 1000 rev/mins rotating speed in the step 4; The compression distance of spill shaft shoulder face (2-1) is 0.8mm, is pressed into the back and stops 4 seconds.
8. according to the preparation method of the said metal material surface composite of claim 4, it is characterized in that: the rotary speed of friction head is 500 rev/mins in the step 4, and the gait of march of friction head is 100 mm/min.
9. according to the preparation method of the said metal material surface composite of claim 4, it is characterized in that: the rotary speed of friction head is 1000 rev/mins in the step 4, and the gait of march of friction head is 50 mm/min.
10. according to the preparation method of the said metal material surface composite of claim 4, it is characterized in that: the rotary speed of friction head is 1200 rev/mins in the step 4, and the gait of march of friction head is 80 mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210087905.8A CN102626822B (en) | 2012-03-29 | 2012-03-29 | Hollow variable-diameter porous friction head and preparation method for surface composite material of metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210087905.8A CN102626822B (en) | 2012-03-29 | 2012-03-29 | Hollow variable-diameter porous friction head and preparation method for surface composite material of metal material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102626822A true CN102626822A (en) | 2012-08-08 |
| CN102626822B CN102626822B (en) | 2014-08-06 |
Family
ID=46585316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210087905.8A Expired - Fee Related CN102626822B (en) | 2012-03-29 | 2012-03-29 | Hollow variable-diameter porous friction head and preparation method for surface composite material of metal material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102626822B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164667A (en) * | 2014-09-15 | 2014-11-26 | 赵军军 | Method for preparing heterogeneous metal coating on steel surface by utilizing frictional heat |
| CN104999175A (en) * | 2015-08-05 | 2015-10-28 | 南昌航空大学 | Method for improving uniformity of composite material manufactured by friction stir processing through adding polytetrafluoroethylene |
| CN106001907A (en) * | 2016-07-26 | 2016-10-12 | 哈尔滨万洲焊接技术有限公司 | Friction stir welding tool with cooling function |
| CN111889873A (en) * | 2020-06-28 | 2020-11-06 | 上海畅桥真空系统制造有限公司 | Welding joint and welding method for friction stir welding of vacuum cavity |
| CN112658461A (en) * | 2020-12-09 | 2021-04-16 | 昆山哈工万洲焊接研究院有限公司 | Local reducing stirring head |
| CN113941770A (en) * | 2021-12-21 | 2022-01-18 | 中山大学 | Double-shaft-shoulder friction stir welding device and method for preparing coating along with welding |
| CN114523187A (en) * | 2022-01-21 | 2022-05-24 | 山东大学 | Friction stir point connection process based on concave pin-free shoulder reinforced light alloy/thermoplastic composite material connection strength |
| CN116970834A (en) * | 2023-09-20 | 2023-10-31 | 中镱新材料智能制造研究院(山西)有限公司 | Gradient metal-based ceramic composite material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0288704A (en) * | 1988-09-26 | 1990-03-28 | Kubota Ltd | Extrusion molding method for al base rapidly cooling solidified powder |
| CN101210277A (en) * | 2006-12-28 | 2008-07-02 | 中国科学院金属研究所 | Surface stirring friction processing method and special-purpose processing tool for the same |
| JP2010279896A (en) * | 2009-06-04 | 2010-12-16 | Primix Copr | Stirring device |
| CN102319954A (en) * | 2011-08-18 | 2012-01-18 | 西安交通大学 | Large-diameter multi-pass pin-less friction stir processing method for fabricating fiber-reinforced metal matrix composites |
-
2012
- 2012-03-29 CN CN201210087905.8A patent/CN102626822B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0288704A (en) * | 1988-09-26 | 1990-03-28 | Kubota Ltd | Extrusion molding method for al base rapidly cooling solidified powder |
| CN101210277A (en) * | 2006-12-28 | 2008-07-02 | 中国科学院金属研究所 | Surface stirring friction processing method and special-purpose processing tool for the same |
| JP2010279896A (en) * | 2009-06-04 | 2010-12-16 | Primix Copr | Stirring device |
| CN102319954A (en) * | 2011-08-18 | 2012-01-18 | 西安交通大学 | Large-diameter multi-pass pin-less friction stir processing method for fabricating fiber-reinforced metal matrix composites |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164667A (en) * | 2014-09-15 | 2014-11-26 | 赵军军 | Method for preparing heterogeneous metal coating on steel surface by utilizing frictional heat |
| CN104999175A (en) * | 2015-08-05 | 2015-10-28 | 南昌航空大学 | Method for improving uniformity of composite material manufactured by friction stir processing through adding polytetrafluoroethylene |
| CN106001907A (en) * | 2016-07-26 | 2016-10-12 | 哈尔滨万洲焊接技术有限公司 | Friction stir welding tool with cooling function |
| CN111889873A (en) * | 2020-06-28 | 2020-11-06 | 上海畅桥真空系统制造有限公司 | Welding joint and welding method for friction stir welding of vacuum cavity |
| CN112658461A (en) * | 2020-12-09 | 2021-04-16 | 昆山哈工万洲焊接研究院有限公司 | Local reducing stirring head |
| CN113941770A (en) * | 2021-12-21 | 2022-01-18 | 中山大学 | Double-shaft-shoulder friction stir welding device and method for preparing coating along with welding |
| CN114523187A (en) * | 2022-01-21 | 2022-05-24 | 山东大学 | Friction stir point connection process based on concave pin-free shoulder reinforced light alloy/thermoplastic composite material connection strength |
| CN116970834A (en) * | 2023-09-20 | 2023-10-31 | 中镱新材料智能制造研究院(山西)有限公司 | Gradient metal-based ceramic composite material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102626822B (en) | 2014-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102626822A (en) | Hollow variable-diameter porous friction head and preparation method for surface composite material of metal material | |
| CN203449611U (en) | Wire extrusion device with spring structure for 3D (three-dimension) printer nozzle | |
| CN105538121B (en) | A kind of burnishing device of tubular workpiece inwall | |
| CN102632334B (en) | Hollow feeding friction head and preparation method of surface composite material of metal material | |
| CN204341727U (en) | A kind of anti-segregation bulk tank | |
| CN103881371B (en) | Laser sintered 3D manufacturing technology stone plastic composite powder end and preparation method thereof | |
| CN104493666B (en) | A kind of Valve Disc high accuracy one-shot forming grinding attachment | |
| CN104191384A (en) | Feeding and scraping device for production of grinding wheels | |
| CN103642257A (en) | Preparation method of modified asphalt | |
| CN205379842U (en) | Two bolt toper blendors | |
| CN208930825U (en) | Bag making insert edge machine | |
| CN106925630A (en) | The cylindrical means for correcting of thin-wall aluminium pipe | |
| CN207153885U (en) | A kind of thickness is adjustable to be used for the device that mullite raw material is ground | |
| CN205520993U (en) | Stirring device | |
| CN102166726A (en) | Obliquity-variable grinding device for magnetic material | |
| CN203449708U (en) | Preparation device for novel composite board | |
| CN203357157U (en) | Microbit angle lapping equipment | |
| CN206871436U (en) | One kind has multi-functional coating machine | |
| CN208340655U (en) | Efficient heating device | |
| CN207578624U (en) | Spreading machine puts down roller arrangement | |
| CN204489936U (en) | A kind of multisystem flat feed appliance hopper control apparatus | |
| CN203155300U (en) | Fireproof raw material mixing device interlined with high-abrasion-resistant materials | |
| CN201211645Y (en) | Large-diameter concretion abrasive wheel | |
| CN204604506U (en) | Cylinder glue sprayer straight plate herringbone blade | |
| CN205380183U (en) | Punching mould of hexagonal pass in soket head cap screw |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20150329 |
|
| EXPY | Termination of patent right or utility model |