CN109017185A - The split type I type distance rod of aluminium alloy and its casting and forming and agitating friction are welded method of completing the square - Google Patents
The split type I type distance rod of aluminium alloy and its casting and forming and agitating friction are welded method of completing the square Download PDFInfo
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- CN109017185A CN109017185A CN201811006526.5A CN201811006526A CN109017185A CN 109017185 A CN109017185 A CN 109017185A CN 201811006526 A CN201811006526 A CN 201811006526A CN 109017185 A CN109017185 A CN 109017185A
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- bulb
- casing
- distance rod
- aluminium alloy
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 86
- 238000005266 casting Methods 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 20
- 238000003466 welding Methods 0.000 claims abstract description 44
- 239000000956 alloy Substances 0.000 claims abstract description 25
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000004615 ingredient Substances 0.000 claims abstract description 12
- 229910018134 Al-Mg Inorganic materials 0.000 claims abstract description 5
- 229910018467 Al—Mg Inorganic materials 0.000 claims abstract description 5
- 229910018569 Al—Zn—Mg—Cu Inorganic materials 0.000 claims abstract description 5
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 5
- 238000005275 alloying Methods 0.000 claims abstract description 5
- 229910052796 boron Inorganic materials 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 5
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 5
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 5
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 5
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims abstract description 4
- 229910018464 Al—Mg—Si Inorganic materials 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 35
- 238000013461 design Methods 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 9
- 230000007547 defect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000003818 cinder Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000007872 degassing Methods 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 230000020169 heat generation Effects 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 229910018182 Al—Cu Inorganic materials 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 3
- 230000004580 weight loss Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 238000001192 hot extrusion Methods 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009661 fatigue test Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 208000016261 weight loss Diseases 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910019064 Mg-Si Inorganic materials 0.000 description 1
- 229910019406 Mg—Si Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007585 pull-off test Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/005—Ball joints
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/416—Ball or spherical joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/71—Light weight materials
- B60G2206/7102—Aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/81—Shaping
- B60G2206/8101—Shaping by casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
- B60G2206/8206—Joining by riveting
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a kind of split type I type distance rods of aluminium alloy, the material of the distance rod is aluminium alloy, preferred ingredient is Al-Cu alloy, Al-Si alloy, Al-Mg-Si system alloy, Al-Zn-Mg-Cu system alloy or Al-Mg alloy, and the aluminium alloy of the micro-alloying elements such as Sr, La, Ce, Y, Sc, Er, Nb, B, Cr is added in above-mentioned acieral.The distance rod is made of casing, bulb and flexural pivot, and two bulbs are separately mounted to the both ends of casing；The neck of bulb is ellipse and the arc-shaped combination being combined, and improves bearing capacity；Bulb is equipped with the through-hole for placing flexural pivot.The aluminium alloy distance rod bulb is prepared using cast shaping process.Casing and bulb assemble to obtain distance rod of the present invention using friction welding (FW) or Friction stir welding, and weight loss effect can reach 40~70%.
Description
Technical field
The present invention relates to automobile I shape distance rod more particularly to a kind of aluminium alloy lightweight distance rod and preparation method thereof,
And the assembly method of distance rod.
Background technique
In face of the pressure of environmental protection and energy-saving and emission-reduction, automotive light weight technology has become the inevitable choice of Automobile Design update.
In truck field, the gross mass of truck is the summation of carload lot and vehicle body from weight, and traffic law is to gross weight
Amount is distinctly claimed, overweight to bring security risk and traffic violation.Therefore as transportation environment mentions vehicle needs
Height, in order to improve transportation profit, the lightweight of truck components has become problem in the urgent need to address.
Distance rod is one of the critical component of truck balanced suspension, air suspension, is divided into straight distance rod (or for I
Shape distance rod) and V-type distance rod, in running car power transmission, limit, vibration isolation, play in terms of mitigate it is vital
Effect.Generally, distance rod is made of casing, bulb and flexural pivot.
Most of bogie traveling road conditions are poor, loading conditions are poor, use environment is severe, vehicle use intensity is big, as outstanding
Frame system plays the distance rod of key effect, and operating condition is complicated, is acted on by multi-load, is easy to cause fatigue damage.Mesh
Forward thrust bar is generally steel or cast iron quality, such as 45 steel, 20 steel, 40Cr material, and weight is larger, and it is further to be unsatisfactory for automobile
Light-weighted demand.Under the pressure of current energy conservation and environmental protection loss of weight, how on the basis of guaranteeing that distance rod service performance requires,
Weight is reduced as far as possible, is realized the lightweight of distance rod, is of great significance to truck.There is part of the manufacturer to pass through at present
Change the structure design of steel material distance rod, for example its partial structurtes is designed as hollow, but since material is constant, design is empty
Between it is small, light weight effect is unobvious, and local hollow structure increases moulding process difficulty and manufacturing cost, therefore cannot be wide
General popularization and application.
Summary of the invention
For the problem of the big light weight effect difference of existing steel material distance rod weight, the object of the present invention is to provide a kind of new
Type lightweight distance rod, the distance rod are made of aluminum alloy materials.In order to enable aluminum alloy to distance rod in running car power transmission, limit
Have receiving multi-load when position, vibration isolation, mitigation impact to act on and meet the ability of high fatigue life, the present invention pushes away aluminium alloy
Power bar has carried out structure design, and develops the casing of achievable distance rod high performance requirements and the processing technology and assembly of bulb
Technique, to obtain Novel lightweight distance rod of the invention.Extrusion forming system is used using casting and forming, casing to bulb
It is standby, bulb obtained and casing application friction welding (FW) or agitating friction are welded and are matched, gained aluminium alloy distance rod and traditional steel material
Distance rod is compared, and is not only had comparable bearing capacity, is also farthest realized lightweight, weight loss effect up to 40~
70%.
A kind of split type I type distance rod of aluminium alloy of the invention, material are aluminium alloy, and preferred component is that Al-Cu system closes
Gold, Al-Si alloy, Al-Mg-Si system alloy, Al-Zn-Mg-Cu system alloy or Al-Mg alloy, and in above-mentioned aluminium base
The aluminium alloy of the micro-alloying elements such as Sr, La, Ce, Y, Sc, Er, Nb, B, Cr is added in alloy.
The split type I type distance rod of a kind of aluminium alloy of the invention comprising have casing, bulb and flexural pivot, the both ends of casing
Bulb is installed respectively, flexural pivot is mounted in the through-hole of bulb；
Casing 1 is an integral molding structure part；
An end face of the BA flexural pivot mounting base bulb mounting base 2A3 of A bulb 2A is the BA of A tapered panel 2A3A, A bulb 2A
The other end of flexural pivot mounting base 2A3 is A round panel 2A3B；BA flexural pivot mounting base linkage section 2A3 is with 1 one end of casing by rubbing
Wipe weldering connection；Binding site be sequentially A bulb 2A neck be equipped with A ellipse section 2A5 and A arc section 2A6；
An end face of the BB flexural pivot mounting base bulb mounting base 2B3 of B bulb 2B is the BB of B tapered panel 2B3A, B bulb 2B
The other end of flexural pivot mounting base 2B3 is B round panel 2B3B；BB flexural pivot mounting base BB linkage section 2B3 and 1 other end of casing are logical
Cross friction welding (FW) connection；Binding site be sequentially B bulb 2B neck be equipped with B ellipse section 2B5 and B arc section 2B6；
A bulb 2A is identical as the structure of B bulb 2B, and A bulb 2A and B bulb 2B is an integral molding structure part.
Casting technique preparation, technique can be used in the split type I type distance rod bulb of aluminium alloy of the invention are as follows:
Casting step one prepares aluminium alloy according to certain proportion, heats matched aluminium alloy in casting machine holding furnace
To certain temperature, and carry out refining degasification；
Casting step two preheats bulb mold and sprue bush；Scarfing cinder is carried out to the cast gate of stalk, is put into ceramics
Filter screen and type core, type core used can be metal material type core, can be sand mold type core；Molding.
Casting step three under a certain pressure by the aluminum alloy melt in holding furnace carries out a liter liquid with given pace；
Casting step four under a certain pressure by aluminium alloy fills type into bulb-shaped chamber with certain speed, until by type chamber
It is completely filled with；
Casting step five quicklys increase pressure to crystallization pressure, and after continuation of insurance after molten aluminum is completely filled with bulb-shaped chamber
Pressure；
Casting step six, finishes to the solidification of aluminium alloy bulb, and the gas pressure in removal holding furnace after cooling and takes out ball
Head casting.
The split type I type distance rod of aluminium alloy of the invention is assembled using friction welding method comprising has the following steps:
Bulb and casing connection position are processed into the pipe structure slightly thicker than casing by installation step one；
Installation step two, bulb is fixed on friction-welding machine or so power spindle, steps up casing using special fixture；
Installation step three works out the PLC control program of friction welding apparatus, setting welding 1 grade of friction pressure, fraction time, 2
The technological parameters such as grade friction pressure, fraction time, friction-welding machine revolving speed；
Installation step four starts friction-welding machine, and bulb is made high speed rotation and to move closer to casing along slide plate on power head,
Frictional heat generation when casing is contacted using bulb high speed rotation, enables aluminum alloy to soften, while being applied centainly on power spindle head
Upsetting force, control upset time, bulb and casing made to realize solid diffusivity；
Installation step five, distance rod unclamp fixture after being welded successfully, take out distance rod, carry out size, crack defect to it
Detection.
The split type I type distance rod of aluminium alloy of the invention can be used friction stir welding method and be assembled comprising under having
Column step:
Bulb and casing connection position are processed into the pipe structure with casing with wall thickness according to design size by installation step A；
Bulb and casing are fixed on numerical control friction stir welding machine welding fixture special by installation step B；
Installation step C sets friction stir welding machine mixing needle revolving speed and weldering speed；
Installation step D starts friction stir welding machine, and mixing needle is protruded into while rotating in the seam of bulb and casing,
The mixing needle shaft shoulder is plasticized aluminum alloy heat to be welded with bulb and sleeve surface friction-stir heat, and makees in stirring-head rotation traction traction
It under, is shifted from the front to the back around stirring-head, realizes the solid diffusivity of bulb and casing；
Installation step E, distance rod unclamp fixture after being welded successfully, take out distance rod, and size, crack defect inspection are carried out to it
It surveys.
The present invention has the advantages that
1. the distance rod is aluminum alloy material, preferred component can be Al-Cu alloy, Al-Si alloy, Al-
Mg-Si system alloy, Al-Zn-Mg-Cu system alloy or Al-Mg alloy, and in above-mentioned acieral add Sr, La,
The aluminium alloy of the micro-alloying elements such as Ce, Y, Sc, Er, Nb, B, Cr stretches by force compared to the distance rod of steel material meeting
Under conditions of the service performances such as degree, fatigue strength, weight loss effect can reach 40~70%；And aluminium alloy distance rod ingredient is easy control
System.
2. the structure of the aluminium alloy distance rod not only ensure that the high-performance of distance rod but also realize lightweight, and designed
Structure be easy preparation, the aluminium alloy distance rod intensity of this kind of structure of gained is high, under the conditions of 200~300KN high loading stress
Nothing pulls and breakoff phenomenon, can meet performance requirement high when distance rod practical application.
3. the distance rod is split type aluminium alloy distance rod, casting and molding method preparation, technique letter is can be used in bulb
Single, controllable degree is high, and distance rod performance obtained by high yield rate is high.
4. aluminium alloy bulb and casing are connected by friction welding (FW) or agitating friction weldering, the ball of distance rod can be rapidly completed
The precise riveting of head and casing, not only ensure that riveting quality but also had improved work efficiency.
Detailed description of the invention
Fig. 1 is the structure chart of the rubbed I type distance rod after matching that is welded of the present invention.
Figure 1A is the facing structure figure of I type distance rod of the present invention.
Figure 1B is the rearview of Fig. 1.
Fig. 1 C is the top view of Fig. 1.
Fig. 1 D is the bottom view of Fig. 1.
Fig. 1 E is the left view of Fig. 1.
Fig. 1 F is the right view of Fig. 1.
Fig. 2 is the front view using bulb of the present invention made from forging technology.
Fig. 2A is the rearview of Fig. 2.
Fig. 2 B is the right view of Fig. 2.
Fig. 2 C is the left view of Fig. 2.
Fig. 2 D is the structure chart of bulb of the present invention.
Fig. 2 E is another viewing angle constructions figure of bulb of the present invention.
Fig. 2 F is the structural design drawing of bulb of the present invention.
Fig. 3 is the front view of middle sleeve of the present invention.
Fig. 3 A is the right view of Fig. 3.
Fig. 3 B is the LOOK RIGHT structure chart of middle sleeve of the present invention.
Fig. 3 C is the LOOK LEFT structure chart of middle sleeve of the present invention.
Fig. 3 D is another structural casing structure chart in the present invention.
Fig. 3 E is another another viewing angle constructions figure of structural casing in the present invention.
Fig. 4 is the structure chart using another bulb of the present invention made from forging technology.
Fig. 4 A is another viewing angle constructions figure using another bulb of the present invention made from forging technology.
Fig. 4 B is the structural design drawing of another bulb of the invention.
Fig. 5 is the mechanical property figure that distance rod is made in embodiment 1.
| 1. casing | 1A.A through-hole | 2A.A bulb |
| 2A2.BA through-hole | 2A3.BA linkage section | 2A3-1. upper profile sideline |
| 2A3-2. bottom profiled sideline | 2A3-3. left profile sideline | 2A3-4. right wheel exterior feature sideline |
| 2A3A.A tapered panel | 2A3B.A round panel | 2A4.BA inner convex platform |
| 2A5.A ellipse section | 2A6.A arc section | 2B.B bulb |
| 2B2.BB through-hole | 2B3.BB linkage section | 2B3A.B tapered panel |
| 2B3B.B round panel | 2B5.B ellipse section | 2B6.B arc section |
| 3.C bulb | 31. extension rod | 32.C through-hole |
| 33.C flexural pivot mounting base | The upper profile sideline 33-1. | 33-2. bottom profiled sideline |
| 33-3. left profile sideline | 33-4. right wheel exterior feature sideline | 33A.C tapered panel |
| 33B.C round panel | 34.C inner convex platform | 35.C ellipse section |
| 36.C arc section |
Specific embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail.
First part, the target component of aluminium alloy distance rod
In the present invention, the material of aluminium alloy distance rod is aluminium alloy, and preferred component can be Al-Cu alloy, Al-Si
It is alloy, Al-Mg-Si system alloy, Al-Zn-Mg-Cu system alloy or Al-Mg alloy, and adds in above-mentioned acieral
Add the aluminium alloy of the micro-alloying elements such as Sr, La, Ce, Y, Sc, Er, Nb, B, Cr.
Preferred distance rod ingredient one are as follows:
| Element | Dosage (mass percent, wt%) |
| Si | 0.1~1.5 |
| Mg | 0.4~2.0 |
| Fe | 0.06~1.6 |
| Cu | 2.5~7.0 |
| Mn | 0.2~1.2 |
| Cr | 0.001~0.15 |
| Ni | 0.001~1.2 |
| Zn | 0.10~0.30 |
| Ti | 0.01~0.20 |
| Zr | 0.001~0.25 |
| Sr | ≤0.03 |
| La | ≤0.03 |
| Ce | ≤0.03 |
| Y | ≤0.1 |
| Er | ≤0.05 |
| Sc | ≤0.05 |
| Al | Surplus and inevitable impurity. |
Preferred distance rod ingredient two are as follows:
| Element | Dosage (mass percent, wt%) |
| Si | 4.5~13.5 |
| Mg | 0.05~0.8 |
| Fe | 0.5~1.5 |
| Cu | 0.2~1.5 |
| Mn | 0.05~0.6 |
| Cr | 0.001~0.2 |
| Ni | 0.001~1.25 |
| Zn | 0.05~0.30 |
| Ti | 0.01~0.25 |
| Zr | 0.001~0.05 |
| Sr | 0.01~0.15 |
| La | ≤0.03 |
| Ce | ≤0.03 |
| Y | ≤0.1 |
| Er | ≤0.05 |
| Sc | ≤0.05 |
| Al | Surplus and inevitable impurity. |
Preferred distance rod ingredient three are as follows:
| Element | Dosage (mass percent, wt%) |
| Si | 0.2~1.8 |
| Mg | 0.3~1.2 |
| Fe | 0.1~0.8 |
| Cu | 0.1~0.4 |
| Mn | 0.3~1.2 |
| Cr | 0.04~0.35 |
| Zn | 0.10~0.30 |
| Ti | 0.01~0.20 |
| Zr | ≤0.005 |
| Sr | ≤0.03 |
| La | ≤0.03 |
| Ce | ≤0.03 |
| Y | ≤0.1 |
| Er | ≤0.05 |
| Sc | ≤0.05 |
| Al | Surplus and inevitable impurity. |
Preferred distance rod ingredient four are as follows:
| Element | Dosage (mass percent, wt%) |
| Si | 0.1~1.2 |
| Mg | 0.04~3.0 |
| Fe | 0.08~1.0 |
| Cu | 0.1~3.0 |
| Mn | 0.1~0.8 |
| Cr | 0.1~0.35 |
| Zn | 4.0~8.0 |
| Ti | 0.001~0.20 |
| Zr | 0.005~0.25 |
| Sr | ≤0.03 |
| La | ≤0.03 |
| Ce | ≤0.03 |
| Y | ≤0.1 |
| Er | ≤0.05 |
| Sc | ≤0.05 |
| Al | Surplus and inevitable impurity. |
Preferred distance rod ingredient five are as follows:
| Element | Dosage (mass percent, wt%) |
| Si | 0.3~0.6 |
| Mg | 2.0~10.5 |
| Fe | 0.01~0.8 |
| Cu | 0.005~0.2 |
| Mn | 0.05~1.2 |
| Cr | 0.001~0.35 |
| Zn | 0.10~0.25 |
| Ti | 0.01~0.20 |
| Zr | 0.001~0.30 |
| Sr | ≤0.03 |
| La | ≤0.03 |
| Ce | ≤0.03 |
| Y | ≤0.1 |
| Er | ≤0.05 |
| Sc | ≤0.05 |
| Al | Surplus and inevitable impurity. |
Second part, the optimization structure of aluminium alloy thrust bar body
Referring to shown in Fig. 1, Figure 1A-Fig. 1 F, the aluminium alloy thrust bar body that the present invention designs includes sleeve 1, A two
Bulb 2A and B bulb 2B；One end both ends of casing 1 are A bulb 2A, the other end B bulb 2B of casing 1.BA on A bulb 2A is logical
Hole 2A2 is for installing a flexural pivot.BB through-hole 2B2 on B bulb 2B is for installing another flexural pivot.
Casing 1
Referring to shown in Fig. 1, Figure 1A~Fig. 1 D, Fig. 3, Fig. 3 B, Fig. 3 C, in order to enable aluminium alloy casing 1 has excellent knot
Structure, casing 1 are hollow integrated formed structure part, and there is A through-hole 1A at the center of casing 1；The total length of casing 1 is denoted as L1, casing 1
Inside radius (i.e. the radius of through-hole 1A) is denoted as r1A.Generally, L1=420~810mm, r1A=18~30mm.
In the present invention, casing 1 can be hollow structure body (Fig. 3 B, Fig. 3 C), be also possible to solid construction body (Fig. 3 D,
Fig. 3 E).
Bulb 2A, 2B
Referring to shown in Fig. 1, Figure 1A, Figure 1B, Fig. 1 C, Fig. 1 D, Fig. 1 E, Fig. 2, Fig. 2A-Fig. 2 E, Fig. 4, Fig. 4 A, Fig. 4 B, A ball
Head 2A is identical as the structure of B bulb 2B, and A bulb 2A and B bulb 2B is an integral molding structure part.
There are certain assembly angles for two bulb facing sleeves that I type distance rod is placed back to back, and are denoted as δ (Fig. 1 E institute
Show), the assembly angle δ is 10~15 degree.On the basis of the round panel of bulb, therefore it is that bulb, which is mounted on automotive suspension,
As shown in Figure 1A, Figure 1B, Fig. 1 E, Fig. 1 F, the B round panel 2B3B of the A tapered panel 2A3A and B bulb 3B of A bulb 2A are kept
It is placed in the same face, the B tapered panel 2B3A of the A round panel 2A3B and B bulb 3B of A bulb 2A are maintained at another side placement.
The tapered panel of i.e. one bulb is outside, and the round panel of another bulb is outside.
Referring to fig. 2, shown in Fig. 2A-Fig. 2 E, end of the A bulb 2A equipped with BA through-hole 2A2, A bulb 2A is BA linkage section
2A3, the BA linkage section 2A3 are connect by friction welding (FW) with one end of casing 1, and similarly, shown in Figure 2, B bulb 2B is equipped with
The end of BB through-hole 2B2, B bulb 2B is BB linkage section 2B3, and the BB linkage section 2B3 passes through the other end of friction welding (FW) and casing 1
Connection.
An end face of A bulb 2A is A tapered panel 2A3A, is equipped in the end BA through-hole 2A2 close to A tapered panel 2A3A
BA inner convex platform 2A4 (shown in Fig. 2 E), BA inner convex platform 2A4 are in contact with it after the entrance of big nose end for limiting mono- flexural pivot 3A of A, are reached
The restriction of rigging position；Other end on A bulb 2A is A round panel 2A3B.The BA through-hole at the end A tapered panel 2A3A
2A2 is less than the BA through-hole 2A2 at the end A round panel 2A3B, and flexural pivot enters from BA through-hole 2A2, and is placed in BA through-hole 2A2 simultaneously
It is limited with BA inner convex platform 2A4, is mounted on flexural pivot on A bulb 2A.
The neck of A bulb 2A is equipped with A ellipse section 2A5 and A arc section 2A6.Similarly, the neck of B bulb 2B is equipped with ellipse
Shape section 2B5 and B arc section 2B6.In order to realize the high bearing capacity of aluminum alloy material distance rod, the A bulb 2A that the present invention designs
Neck structure feature meets shown in Fig. 2 F.In fig. 2f, the center of circle of the bottom A arc section 2A6 is denoted as O4(and the oval center of circle is denoted as
O4), the radius of A arc section 2A6 is denoted as r2A1；The center of circle of the bottom A ellipse section 2A5 is denoted as O3, with O3a3Auxiliary circle is drawn for radius；
Second aspect, the above distance ab cut off to obtain the upper profile sideline 2A3-1 of A bulb 2A3, and distance cd cuts off to obtain A bulb below
The bottom profiled sideline 2A3-2 of 2A3；Auxiliary draws left profile sideline 2A3-3 and right wheel exterior feature sideline 2A3-4；The third aspect, with long by half
Diameter O3a3With short radius O3b3It is oval (as ellipse section 2A5 stops line close to the profile of round panel 2A3B) to draw lower half of auxiliary,
Meet at O3The upper b of c3Point；Fourth aspect, with major radius O4a4With short radius O4b4Draw oval (the as oval section of half of auxiliary
2A5 stops line close to the profile of tapered panel 2A3A), meet at upper two b of profile sideline 2A3-15Point, b6Point, O3b3=O4b4, formed
The A bulb 2A of the fat round engaging portion combined with ellipse.
Another bulb (the C bulb 3) structure that the present invention designs is as shown in Fig. 4, Fig. 4 A, Fig. 4 B, and C bulb 3 is in addition to even
It connects and is increased in section other than extension rod 31, remaining structure is identical with A bulb 2A.In the structure of C bulb 3, extension rod is removed
Outside 31, the referred to as C flexural pivot mounting base 33 of C bulb 3, i.e. C bulb 3 include to be equipped with extension rod 31 and C flexural pivot mounting base 33.Institute
It states C flexural pivot mounting base 33 and is equipped with the C through-hole 32 for being used for installing a flexural pivot.The end face of extension rod 31 and one end of casing use and rub
Weldering connection is wiped, the neck of C bulb 3 is equipped with C arc section 36 and C ellipse section 35.In order to realize that aluminum alloy material distance rod is high
Bearing strength, the neck for the C bulb 3 that the present invention designs is to meet shown in Fig. 4 B.The center of circle of 31 bottom of extension rod is denoted as O0, extend
The radius of 31 bottom of bar is denoted as r2A1, center of circle O as extension rod 31 is tilted to using the equidistant picture circle that moves down3Point, enhances locus circle
Radius is O3a3, the oval center of circle is denoted as O4；In a first aspect, the center of circle of 33 bottom of C flexural pivot mounting base is denoted as O3, with O3a3For radius picture
Auxiliary circle；Second aspect, the above distance ab cut off to obtain the upper profile sideline 33-1 of C flexural pivot mounting base 33, and distance cd is cut below
Except obtaining the bottom profiled sideline 33-2 of C flexural pivot mounting base 33；Auxiliary draws left profile sideline 33-3 and right wheel exterior feature sideline 33-4；The
Three aspects, with major radius O3a3With short radius O3b3Drawing lower half of auxiliary ellipse, (as oval section 35 is close to round panel 33B
Profile stop line), meet at O3The upper b of c3Point；Fourth aspect, with major radius O4a4With short radius O4b4It is oval to draw half of auxiliary
(as oval section 35 stops line close to the profile of tapered panel 33A), meets at upper two b of profile sideline 33-15Point, b6Point, O3b3
=O4b4, form the C bulb 3 of the round engaging portion combined with ellipse.
Binding site meet size be
In the present invention, the radius that rises of arc section (2A6,2B6) is r2, the only radius of arc section (2A6,2B6) is r4, ellipse
The lower major radius of circle segments (2A5,2B5) is O3a3, lower short radius be O3b3, upper major radius O4a4With upper short radius O4b4, then have,
r2A1=2r1A,O3a3=2r1A,Upper major radiusWith upper short radius O4b4=
r1A。
Part III processes aluminium alloy thrust bar body
In the present invention, bulb is made of cast shaping process, specific steps are as follows:
Casting step one prepares aluminium alloy according to certain proportion, heats matched aluminium alloy in casting machine holding furnace
To 700~740 DEG C, 30~45min of degasification is refined；
Bulb mold is preheating to 350~400 DEG C by casting step two, and sprue bush preheating temperature is to 300~350 DEG C；To liter
The cast gate of liquid pipe carries out scarfing cinder, is put into foam ceramic filter and type core, type core used can be metal material type core, can be sand mold
Type core；Molding.
Casting step three, by the aluminum alloy melt in holding furnace under the pressure of 20~25kPa, with 2.0~2.6kPa/s's
Speed carries out a liter liquid；
Casting step four fills type to ball with the speed of 0.5~2.0kPa/s by aluminium alloy under the pressure of 35~40kPa
In head dummy chamber, until type chamber is completely filled with；
Casting step five quicklys increase pressure to 50~150kPa in 5~7s after molten aluminum is completely filled with bulb-shaped chamber,
And continue 10~60s of pressure maintaining；
Casting step six, finishes to the solidification of aluminium alloy bulb, and the gas pressure in removal holding furnace after cooling and takes out ball
Head casting.
In the present invention, casing is made of hot extrusion technique, specific steps are as follows:
101 steps prepare aluminium alloy according to certain proportion, and aluminum alloy blank are heated in chamber type electric resistance furnace
380~520 DEG C, keep the temperature 30~60min；
Extrusion die temperature is heated to 400~500 DEG C, and keeps the temperature 10~30min by 102 steps, and blank is carried out hot extrusion
It presses toPieces of bar stock；
Pieces of bar stock is processed into required hollow structure by punching or machining mode by 103 steps.
Part IV, the assembly of aluminium alloy thrust bar body
In the present invention, aluminium alloy bulb is attached with aluminium alloy casing by friction welding (FW) moulding process, is specifically included
The following steps:
Bulb and casing connection position are processed into the pipe structure than covering 0.2~0.5mm of the thickness of pipe by installation step one；
Installation step two, bulb is fixed on friction-welding machine or so power spindle, steps up casing using special fixture；
Installation step three works out the PLC control program of friction welding apparatus, sets welding condition, and 1 grade of friction pressure is
0.5~3MPa, fraction time are 5~8s, set 2 grades of friction pressures as 1~5MPa, fraction time is 9~12s, setting friction
Welding machine revolving speed is 300~1000rpm；
Installation step four starts friction-welding machine, and bulb is made high speed rotation and to move closer to casing along slide plate on power head,
Using bulb high speed rotation contact casing when frictional heat generation, enable aluminum alloy to soften, at the same on power spindle head apply 7~
The upsetting force of 15MPa, upset time are 3~15s, and bulb and casing is made to realize solid diffusivity；
Installation step five, distance rod unclamp fixture after being welded successfully, take out distance rod, carry out size, crack defect to it
Detection.
In the present invention, aluminium alloy bulb welds moulding process by agitating friction with aluminium alloy casing and is attached, specifically
Include the following steps:
Bulb and casing connection position are processed into the pipe structure with casing with wall thickness according to design size by installation step A；
Bulb and casing are fixed on numerical control friction stir welding machine welding fixture special by installation step B；
Installation step C sets friction stir welding machine mixing needle revolving speed as 800~1600rpm, and weldering speed is 100~200mm/
min；
Installation step D starts friction stir welding machine, and mixing needle is protruded into while rotating in the seam of bulb and casing,
The mixing needle shaft shoulder is plasticized aluminum alloy heat to be welded with bulb and sleeve surface friction-stir heat, and makees in stirring-head rotation traction traction
It under, is shifted from the front to the back around stirring-head, realizes the solid diffusivity of bulb and casing；
Installation step E, distance rod unclamp fixture after being welded successfully, take out distance rod, and size, crack defect inspection are carried out to it
It surveys.
Embodiment 1
The ingredient of aluminium alloy bulb in embodiment one are as follows:
| Element | Dosage (mass percent, wt%) |
| Si | 7.2 |
| Mg | 0.6 |
| Fe | 0.5 |
| Cu | 1.5 |
| Mn | 0.5 |
| Cr | 0.08 |
| Ni | 0.008 |
| Zn | 0.05 |
| Ti | 0.15 |
| Zr | 0.05 |
| Sr | 0.15 |
| Ce | 0.03 |
| Sc | 0.05 |
| Al | Surplus and inevitable impurity. |
The ingredient of aluminium alloy casing in embodiment one are as follows:
| Element | Dosage (mass percent, wt%) |
| Si | 0.8 |
| Mg | 1.5 |
| Fe | 0.8 |
| Cu | 5.0 |
| Mn | 0.8 |
| Cr | 0.1 |
| Ni | 0.1 |
| Zn | 0.3 |
| Ti | 0.2 |
| Zr | 0.1 |
| Sr | 0.01 |
| La | 0.03 |
| Ce | 0.03 |
| Al | Surplus and inevitable impurity. |
The total length of casing 1 is denoted as L1The inside radius of=810mm, casing 1 are denoted as r1A=30mm；The bellows piece of bulb 2A
Maximum outer radius be denoted as r2A1=30mm；The size that casing meets with bulb binding site is that arc section (2A6,2B6) rises
Radius is r2(r2=r1A=r2A1=30mm), the only radius of arc section (2A6,2B6) isThe lower major radius of oval section (2A5,2B5) is O3a3=2r1A=60mm, under it is short by half
Diameter isUpper major radiusWith upper short radius O4b4=r1A
=30mm.
In embodiment 1, bulb is made of cast shaping process, specific steps are as follows:
Casting step one prepares aluminium alloy according to certain proportion, heats matched aluminium alloy in casting machine holding furnace
To 740 DEG C, degasification 40min is refined；
Bulb mold is preheating to 380 DEG C by casting step two, and sprue bush preheating temperature is to 350 DEG C；To the cast gate of stalk
Scarfing cinder is carried out, is put into foam ceramic filter and type core, type core used can be metal material type core, can be sand mold type core；Molding.
Casting step three is risen by the aluminum alloy melt in holding furnace under the pressure of 25kPa with the speed of 2.6kPa/s
Liquid；
Casting step four fills type into bulb-shaped chamber with the speed of 2.0kPa/s by aluminium alloy under the pressure of 40kPa,
Until type chamber is completely filled with；
Casting step five quicklys increase pressure to 120kPa in 6s, and after continuation of insurance after molten aluminum is completely filled with bulb-shaped chamber
Press 30s；
Casting step six, finishes to the solidification of aluminium alloy bulb, and the gas pressure in removal holding furnace after cooling and takes out ball
Head casting.
In embodiment 1, casing uses hot extrusion molding, specific steps are as follows:
Step 1 prepares aluminium alloy according to certain proportion, and aluminum alloy blank is heated to 500 in chamber type electric resistance furnace
DEG C, keep the temperature 30min；
Extrusion die temperature is heated to 480 DEG C, and keeps the temperature 30min by step 2, by blank be hot extruded into forPieces of bar stock；
Pieces of bar stock is processed into required hollow structure by punching or machining mode by step 3.
The assembly of aluminium alloy thrust bar body
Bulb and casing connection position are processed into the pipe knot with casing with wall thickness according to design size by installation step one
Structure；
Bulb and casing are fixed on numerical control friction stir welding machine welding fixture special by installation step two；
Installation step three, sets friction stir welding machine mixing needle revolving speed as 1000rpm, weldering speed 150mm/min；
Installation step four starts friction stir welding machine, and mixing needle is protruded into while rotating in the seam of bulb and casing,
The mixing needle shaft shoulder is plasticized aluminum alloy heat to be welded with bulb and sleeve surface friction-stir heat, and makees in stirring-head rotation traction traction
It under, is shifted from the front to the back around stirring-head, realizes the solid diffusivity of bulb and casing；
Installation step five, distance rod unclamp fixture after being welded successfully, take out distance rod, carry out size, crack defect to it
Detection.
Distance rod assembly carries out power to it after the assembly is completed, using 45.105 type microcomputer controlled electronic universal tester of MTS
Performance test is learned, stress-strain result is shown in Fig. 5, it is seen that the average tensile strength 528.2MPa of designed distance rod, yield strength
366.5MPa, elongation percentage 16.6% can meet actual use intensity requirement.
Distance rod assembly carries out pull-off test detection after the assembly is completed, using MTS universal testing machine, longitudinally applies in distance rod
Add the tensile load of 200KN, the results showed that sliding relatively do not occur in bulb and casing riveting place, do not occur pulling phenomenon.
Distance rod assembly carries out fatigue test detection after the assembly is completed, using electo hydraulic servocontrolled fatigue testing machine, along distance rod
The power of longitudinal load 150KN, loading frequency 1HZ are recycled 1,200,000 times, the results showed that distance rod does not occur phenomenon of rupture, flexural pivot
Without breakoff phenomenon, forward and backward stiffness variation is tested no more than 30%, illustrates that distance rod fatigue life is preferable.
Claims (10)
1. a kind of split type I type distance rod of aluminium alloy, it is characterised in that: the material of distance rod is aluminium alloy, and preferred component is Al-
Cu system alloy, Al-Si alloy, Al-Mg-Si system alloy, Al-Zn-Mg-Cu system alloy or Al-Mg alloy, and upper
State the aluminium alloy that the micro-alloying elements such as Sr, La, Ce, Y, Sc, Er, Nb, B, Cr are added in acieral.
2. the material of the split type I type distance rod of aluminium alloy according to claim 1, it is characterised in that:
Preferred distance rod ingredient are as follows:
3. the material of the split type I type distance rod of aluminium alloy according to claim 1, it is characterised in that:
Preferred distance rod ingredient are as follows:
4. the material of the split type I type distance rod of aluminium alloy according to claim 1, it is characterised in that:
Preferred distance rod ingredient are as follows:
5. a kind of split type I type distance rod of aluminium alloy comprising have casing, bulb and flexural pivot, mounting ball is distinguished at the both ends of casing
Head, flexural pivot are mounted in the through-hole of bulb；It is characterized by:
Casing 1 is an integral molding structure part；
An end face of the BA flexural pivot mounting base bulb mounting base 2A3 of A bulb 2A is the BA flexural pivot of A tapered panel 2A3A, A bulb 2A
The other end of mounting base 2A3 is A round panel 2A3B；BA flexural pivot mounting base linkage section 2A3 and 1 one end of casing pass through friction welding (FW)
Connection；Binding site be sequentially A bulb 2A neck be equipped with A ellipse section 2A5 and A arc section 2A6；
An end face of the BB flexural pivot mounting base bulb mounting base 2B3 of B bulb 2B is the BB flexural pivot of B tapered panel 2B3A, B bulb 2B
The other end of mounting base 2B3 is B round panel 2B3B；BB flexural pivot mounting base BB linkage section 2B3 is with 1 other end of casing by rubbing
Wipe weldering connection；Binding site be sequentially B bulb 2B neck be equipped with B ellipse section 2B5 and B arc section 2B6；
A bulb 2A is identical as the structure of B bulb 2B, and A bulb 2A and B bulb 2B is an integral molding structure part.
6. the split type I type distance rod of aluminium alloy according to claim 5, it is characterised in that: the total length of casing 1 is L1, set
The inside radius of pipe 1 is r1A, the radius of bulb 2A is denoted as r2A1；The size that bulb neck region meets is arc section (2A6,2B6)
Rise radius be r2, the only radius of arc section (2A6,2B6) is r4, the lower major radius of oval section (2A5,2B5) is O3a3, under
Short radius is O3b3, upper major radius O4a4With upper short radius O4b4, then have, r2A1=2r1A,O3a3=2r1A,Upper major radiusWith upper short radius O4b4=r1A。
7. the split type I type distance rod of aluminium alloy according to claim 5, it is characterised in that: casing be solid structure or
Person is hollow structure.
8. casting technique preparation, technique can be used in the split type I type distance rod bulb of aluminium alloy are as follows:
Casting step one prepares aluminium alloy according to certain proportion, matched aluminium alloy is heated to one in casting machine holding furnace
Determine temperature, and carries out refining degasification；
Casting step two preheats bulb mold and sprue bush；Scarfing cinder is carried out to the cast gate of stalk, is put into ceramic filter
Net and type core, type core used can be metal material type core, can be sand mold type core；Molding.
Casting step three under a certain pressure by the aluminum alloy melt in holding furnace carries out a liter liquid with given pace；
Casting step four under a certain pressure by aluminium alloy fills type into bulb-shaped chamber with certain speed, until type chamber is whole
It is full of；
Casting step five quicklys increase pressure to crystallization pressure, and continue pressure maintaining after molten aluminum is completely filled with bulb-shaped chamber；
Casting step six, finishes to the solidification of aluminium alloy bulb, and the gas pressure in removal holding furnace after cooling and takes out ball head cast
Part.
9. the split type I type distance rod of aluminium alloy is assembled using friction welding method, it is characterised in that include the following steps:
Bulb and casing connection position are processed into the pipe structure slightly thicker than casing by installation step one；
Installation step two, bulb is fixed on friction-welding machine or so power spindle, steps up casing using special fixture；
Installation step three, works out the PLC control program of friction welding apparatus, 1 grade of friction pressure of setting welding, fraction time, 2 grades rub
Wipe the technological parameters such as pressure, fraction time, friction-welding machine revolving speed；
Installation step four starts friction-welding machine, and bulb is made high speed rotation and to move closer to casing along slide plate on power head, utilizes
Bulb high speed rotation contacts frictional heat generation when casing, enables aluminum alloy to soften, while applying certain top on power spindle head
Forging force controls upset time, and bulb and casing is made to realize solid diffusivity；
Installation step five, distance rod unclamp fixture after being welded successfully, take out distance rod, and size, crack defect detection are carried out to it.
10. the split type I type distance rod of aluminium alloy can be used friction stir welding method and be assembled, it is characterised in that include following
Step:
Bulb and casing connection position are processed into the pipe structure with casing with wall thickness according to design size by installation step A；
Bulb and casing are fixed on numerical control friction stir welding machine welding fixture special by installation step B；
Installation step C sets friction stir welding machine mixing needle revolving speed and weldering speed；
Installation step D starts friction stir welding machine, and mixing needle is protruded into while rotating in the seam of bulb and casing, stirs
Needle shaft shoulder is plasticized aluminum alloy heat to be welded with bulb and sleeve surface friction-stir heat, and acts in stirring-head rotation traction traction
Under, it is shifted from the front to the back around stirring-head, realizes the solid diffusivity of bulb and casing；
Installation step E, distance rod unclamp fixture after being welded successfully, take out distance rod, and size, crack defect detection are carried out to it.
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| CN108973567A (en) * | 2018-08-31 | 2018-12-11 | 北京航大新材科技有限公司 | The split type I type distance rod of aluminium alloy and its preparation process and agitating friction are welded method of completing the square |
| CN109130748A (en) * | 2018-08-31 | 2019-01-04 | 北京航大新材科技有限公司 | The split type I type distance rod of aluminium alloy and its casting and forming and overall thermal riveting assembly method |
| CN110579164A (en) * | 2019-09-29 | 2019-12-17 | 重庆科技学院 | A circular workpiece synchronous clamping eccentricity detection device |
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