CN109985954A - A kind of strong revolving shaping method of heat preparing magnesium alloy Power spinning - Google Patents
A kind of strong revolving shaping method of heat preparing magnesium alloy Power spinning Download PDFInfo
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- CN109985954A CN109985954A CN201910306894.XA CN201910306894A CN109985954A CN 109985954 A CN109985954 A CN 109985954A CN 201910306894 A CN201910306894 A CN 201910306894A CN 109985954 A CN109985954 A CN 109985954A
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- spinning
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- magnesium alloy
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- 238000009987 spinning Methods 0.000 title claims abstract description 94
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007493 shaping process Methods 0.000 title claims abstract description 13
- 230000009467 reduction Effects 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000009966 trimming Methods 0.000 claims abstract description 3
- 210000003205 muscle Anatomy 0.000 claims description 27
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 230000005674 electromagnetic induction Effects 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
Abstract
The invention discloses a kind of strong revolving shaping methods of heat for preparing magnesium alloy Power spinning；Including tube blank size selection, the big reduction stepped spinning forming of single pass, surfacing and end trimmings step.The present invention passes through the disposable mould pressing of the big reduction of single pass and surfacing, the high forming quality Power spinning met the size requirements can be effectively obtained, avoids the unfavorable factor of Power spinning multi-pass spinning forming process, process is simple, it is at low cost, high production efficiency.
Description
Technical field
The present invention relates to hot strong rotation forming more particularly to a kind of strong rotation forming sides of heat for preparing magnesium alloy Power spinning
Method.
Background technique
Power spinning is primarily used for the lightweight structure part in the fields such as automobile and aerospace, Power spinning
There is higher specific strength and specific stiffness while meeting structure design requirement；Magnesium alloy with good comprehensive performance can be very
Good is suitable for lightweight structure material.
Cutting way is mostly used to be processed in engineer application, but processing efficiency is low, processing cost is high；Using spin-on process
The Power spinning of forming, interior muscle metal streamline is complete, metal fibrous tissue is reasonably distributed, compared with shaping by stock removal mode,
The Power spinning of mould pressing has higher static strength and fatigue strength, however the temperature-room type plasticity deformation performance of magnesium alloy
It is poor, hinder its extensive use.In addition, shear spinning biggish for reduction, is all made of multi-pass rotation under normal circumstances
Pressing formation, but for the shear spinning of the cylindrical member with interior muscle, if shaped using multi-pass spinning, preceding a time is formed
Part in muscle will will affect latter passage material flowing, influence monolithic molding quality.
Summary of the invention
The shortcomings that it is an object of the invention to overcome the above-mentioned prior art and deficiency provide and a kind of prepare muscle in Magnesium alloy strip
The strong revolving shaping method of heat of cylindrical member.By reasonably selecting the strong rotation forming of the big reduction heat of pipe, single pass, surfacing, repairing
Side can get the Power spinning for meeting size and quality requirement.
The present invention is achieved through the following technical solutions:
A kind of strong revolving shaping method of heat preparing magnesium alloy Power spinning comprising following steps；
Step 1: selection pipe
Using the wall portion internal diameter of part as the internal diameter of pipe, 1.5 times of muscle height are added as pipe wall thickness using the wall thickness of part
It determines pipe outer diameter, using part length plus trimming allowance as spinning part total length, calculates pipe 8 in conjunction with Volume conservation law
Length；
Step 2: the strong rotation forming of heat
By 8 sets of pipe on the core model 7 of stepped spinning device, pipe 8 heat using electromagnetic induction device and real
When temperature control, so that pipe 8 is carried out single pass big reduction stepped spinning deformation at a set temperature, in filling core model groove obtains
Muscle completes the strong rotation forming of heat of Power spinning.
It further include surface finishing steps and deburring step after the strong rotation forming of heat；
Surface finishing steps include carrying out the finishing of surface spinning to spinning part, in the band of size needed for obtaining and quality requirement
Muscle spinning part；
Deburring step includes obtaining final products for cutting off with the surplus at interior muscle tubular spinning part both ends.
Described in step 2 by 8 sets of pipe on the core model of stepped spinning device, specifically: first by core model with groove
7 are mounted on main shaft 10, and 9 sets of locating snap ring hold out against on core model 7 and through lateral bolt in realization fixation on core model 7；8 sets of pipe
On core model 7, one end is contacted with locating snap ring 9, and pipe 8, locating snap ring 9 and core model 7 are rotated with main shaft 10.
The temperature of real-time temperature control described in step 2 is 300 DEG C~325 DEG C.
The stepped spinning of stepped spinning device described in step 2 is the three spinning roller spinning around 7 circumference of core model in 120 ° of distributions.
The big reduction of single pass described in step 2 refers to that total reduction of spinning part reaches 50% or more, and single pass is spun into
Shape.
The present invention compared with the existing technology, have following advantages and effects
Compared with existing Machining Technology for Cutting, the present invention prepares the strong revolving shaping method of heat of magnesium alloy Power spinning not
It is only capable of being significantly reduced material consumption, reduces production cost, moreover it is possible to retain complete metal streamline, be conducive to improve the strong of component
Degree and wearability.
Compared with existing cold forming techniques, the strong rotation forming technique of heat of the invention is, it can be achieved that large plastometric set, can effectively mention
The plastic deformation degree and forming quality of high product, meet the requirement of Power spinning precision plastic forming.
Compared with other forming temperatures, the strong rotation forming of heat of the magnesium alloy Power spinning in 300 DEG C of temperature, spinning part
The filling effect of surface quality and interior muscle is preferable, and MATERIALS ' DYNAMIC recrystallization it is more abundant, can get crystal grain it is more tiny, uniformly at
Shape tissue can be realized shape control integration precision plastic forming.
Compared with the forming of existing multi-pass spinning, manufacturing process process of the present invention is simple, high-efficient, at low cost, can get
Interior muscle fills full, the good Power spinning of forming quality.
Detailed description of the invention
Fig. 1 is that (d is barrel internal diameter to magnesium alloy Power spinning cross-sectional structure schematic diagram of the present invention, and h is that muscle is high, and t is
Barrel wall thickness).
Fig. 2 is pipe structural schematic diagram.
Fig. 3 is the spinning roller layout drawing of stepped spinning of the present invention.
Fig. 4 is the schematic diagram of stepped spinning.
Fig. 5 is the magnesium alloy Power spinning cross-sectional structure schematic diagram of another embodiment of the invention.
Fig. 6 is the microscopic structure of muscle portion position in spinning part.
Fig. 7 is spinning part wall portion position microscopic structure.
Specific embodiment
The present invention is more specifically described in detail combined with specific embodiments below.
The magnesium alloy Power spinning cross-sectional structure processed needed for of the invention is as shown in Figure 1；Pipe just is such as
Shown in Fig. 2.During rotary pressure deformation, using the more mature electromagnetic induction heating of current technology (device model: SF-60P), thermometric
Temperature-controlling system (device model: STBE-1 series) and Stepped spinning equipment (lathe model: the strong screw forming machine of HGQX Vertical Heat
Bed) carry out the strong rotation forming of heat.
Fig. 3 is stepped spinning device, and corresponding spinning roller 1,2,3 can be adjusted by spinning roller radial adjustment device 4,5,6
Radial position realize spinning roller drafts and it is radial wrong away from；Axis can be realized by adding gasket between spinning roller and bearing block
To mistake away from.
Fig. 4 is the schematic diagram of stepped spinning, compares the wrong away from amount of spinning roller for convenience, will be circumferentially spaced 120 ° practical
Three spinning rollers of arrangement are shown on same longitudinal section, and spinning roller carries out mould pressing along axial feed when spinning.
Core model 7 with groove is mounted on main shaft 10 first, 9 sets of locating snap ring on core model 7 and pass through lateral bolt top
Tightly fixed in realization on core model 7；8 sets of pipe on core model 7, one end is contacted with locating snap ring 9, pipe 8, locating snap ring 9 and core model 7
It is rotated with main shaft 10.
Before mould pressing, first determine forming temperature, and each spinning roller drafts of analytical calculation and it is axial wrong away from etc. techniques ginseng
Number.By the radial mistake of each spinning roller of reasonable distribution away from amount, balance the resultant force of three spinning roller radial forces, to prevent core model stress
Unevenly generate unbalance loading phenomenon.When mould pressing, pipe thickness is thinned and fills interior muscle.
Below by examples of implementation, the invention will be further described.
Embodiment 1
It is as shown in Figure 1 a kind of cylindrical member of muscle in band, material is ZK61 magnesium alloy, Power spinning barrel internal diameter d
It is 4mm for 60mm, the high h of muscle, wall thickness t is 4mm.
According to pipe selection mode, the high h of muscle is 4mm, then pipe needs increased wall thickness for its 1.5 times, i.e. 6mm, and band
Interior muscle cylindrical member pipe thickness t is 4mm, then pipe wall thickness t0It should be 10mm, internal diameter d0For 60mm, as shown in Figure 2.Using this rule
The pipe of lattice shapes Power spinning, and wall thickness is decreased to 4mm by 10mm, and total reduction is 60%.
Using hot rotation forming by force, 300 DEG C of forming temperature are arranged on automatic temperature measurement temperature-controlling system, induction is carried out to pipe and is added
Heat.It is once-forming using stepped spinning, as shown in Figure 3, Figure 4, drafts 6mm.
After hot strong rotation forming, then 0.1mm drafts is used to carry out the finishing of surface spinning.
Finally spinning part is unloaded, and both ends surplus is cut off, it can muscle tubular in Magnesium alloy strip required for obtaining
Part.
Embodiment 2
It is illustrated in figure 5 another cylindrical member with interior muscle, material is ZK61 magnesium alloy, Power spinning barrel internal diameter
D is 80mm, and the high h of muscle is 3mm, and wall thickness t is 2mm.
According to pipe selection mode, the high h of muscle is 3mm, then pipe needs increased wall thickness for its 1.5 times, i.e. 4.5mm, and
Power spinning pipe thickness t is 2mm, then pipe wall thickness t0It should be 6.5mm, internal diameter d0For 80mm, as shown in Figure 2.Using this
The pipe of specification shapes Power spinning, and wall thickness is decreased to 2mm by 6.5mm, and total reduction is 69%.
Using hot rotation forming by force, 300 DEG C of forming temperature are arranged on automatic temperature measurement temperature-controlling system, induction is carried out to pipe and is added
Heat.It is once-forming using stepped spinning, as shown in Figure 3, Figure 4, drafts 4.5mm.
After hot strong rotation forming, then 0.1mm drafts is used to carry out the finishing of surface spinning.
Finally spinning part is unloaded, and both ends surplus is cut off, it can muscle tubular in Magnesium alloy strip required for obtaining
Part.
Fig. 6 shows the microstructure of muscle portion position in spinning part；Fig. 7 shows spinning part wall portion position microscopic structure
Structure.
As described above, the present invention can be obtained effectively by the disposable mould pressing of the big reduction of single pass and surfacing
The high forming quality Power spinning met the size requirements, avoids the unfavorable of Power spinning multi-pass spinning forming process
Factor, process is simple, at low cost, high production efficiency.
Embodiment of the present invention are not limited by the above embodiments, other are any without departing from Spirit Essence of the invention
With changes, modifications, substitutions, combinations, simplifications made under principle, equivalent substitute mode should be, be included in of the invention
Within protection scope.
Claims (6)
1. a kind of strong revolving shaping method of heat for preparing magnesium alloy Power spinning, it is characterised in that:
Step 1: selection pipe
Using the wall portion internal diameter of part as the internal diameter of pipe, determined using the wall thickness of part plus 1.5 times of muscle height as pipe wall thickness
It is long to calculate pipe (8) in conjunction with Volume conservation law using part length plus trimming allowance as spinning part total length for pipe outer diameter
Degree；
Step 2: the strong rotation forming of heat
Pipe (8) is covered on the core model (7) of stepped spinning device, pipe (8) is heated simultaneously using electromagnetic induction device
Real-time temperature control, makes pipe (8) carry out the big reduction stepped spinning deformation of single pass at a set temperature, and filling core model groove obtains
Interior muscle completes the strong rotation forming of heat of Power spinning.
2. preparing the strong revolving shaping method of heat of magnesium alloy Power spinning according to claim 1, it is characterised in that step
The stepped spinning of the two stepped spinning devices is the three spinning roller spinning around core model (7) circumference in 120 ° of distributions.
3. preparing the strong revolving shaping method of heat of magnesium alloy Power spinning according to claim 2, which is characterized in that step
The temperature of the two real-time temperature controls is 300 DEG C~325 DEG C.
4. preparing the strong revolving shaping method of heat of magnesium alloy Power spinning according to claim 3, it is characterised in that step
Pipe (8) is covered on the core model of stepped spinning device described in two, specifically:
Core model with groove (7) is mounted on main shaft (10) first, locating snap ring (9) covers on core model (7) and by lateral spiral shell
Bolt is held out against to be fixed in realization on core model (7)；Pipe (8) covers on core model (7), and one end is contacted with locating snap ring (9), pipe (8),
Locating snap ring (9) and core model (7) are rotated with main shaft (10).
5. preparing the strong revolving shaping method of heat of magnesium alloy Power spinning according to claim 3, which is characterized in that step
The two big reductions of single pass refer to that total reduction of spinning part reaches 50% or more, single pass mould pressing.
6. the strong revolving shaping method of heat of magnesium alloy Power spinning is prepared described according to claim 1~any one of 5, it is special
It further include surface finishing steps and deburring step after sign is the strong rotation forming of the heat；
Surface finishing steps include carrying out the finishing of surface spinning to spinning part, and size and quality requirement needed for obtaining are revolved with interior muscle
Casting die；
Deburring step includes obtaining final products for cutting off with the surplus at interior muscle tubular spinning part both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306894.XA CN109985954A (en) | 2019-04-17 | 2019-04-17 | A kind of strong revolving shaping method of heat preparing magnesium alloy Power spinning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306894.XA CN109985954A (en) | 2019-04-17 | 2019-04-17 | A kind of strong revolving shaping method of heat preparing magnesium alloy Power spinning |
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| CN109985954A true CN109985954A (en) | 2019-07-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083974A (en) * | 2021-03-30 | 2021-07-09 | 武汉理工大学 | Rolling-flexible growth composite forming method for thin-wall grid rib cylinder part |
| CN114011940A (en) * | 2021-11-08 | 2022-02-08 | 四川航天长征装备制造有限公司 | Engine shell spinning method for eliminating surface cutter-receiving marks |
| CN114406080A (en) * | 2022-01-24 | 2022-04-29 | 中国航空制造技术研究院 | Extrusion-spinning forming method and forming tool for thin-wall component with inner ribs |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234406A (en) * | 2009-03-31 | 2010-10-21 | Sc Pipe Solutions Co Ltd | Method of working pipe |
| CN102078895A (en) * | 2010-11-11 | 2011-06-01 | 西北工业大学 | Method for forming large complex thin-wall shell with circumferential inner ribs |
| CN107350328A (en) * | 2017-07-24 | 2017-11-17 | 西安航天动力机械厂 | The core and manufacturing process of different in width transversal inner rib component mould pressing |
| CN107855394A (en) * | 2017-11-06 | 2018-03-30 | 哈尔滨工业大学 | A kind of intersection spinning intensifying method of Mg alloy thin wall cylindrical member |
| CN106391810B (en) * | 2016-10-18 | 2018-06-22 | 华南理工大学 | A kind of spin forming method for preparing magnetically soft alloy cylindrical member |
-
2019
- 2019-04-17 CN CN201910306894.XA patent/CN109985954A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234406A (en) * | 2009-03-31 | 2010-10-21 | Sc Pipe Solutions Co Ltd | Method of working pipe |
| CN102078895A (en) * | 2010-11-11 | 2011-06-01 | 西北工业大学 | Method for forming large complex thin-wall shell with circumferential inner ribs |
| CN106391810B (en) * | 2016-10-18 | 2018-06-22 | 华南理工大学 | A kind of spin forming method for preparing magnetically soft alloy cylindrical member |
| CN107350328A (en) * | 2017-07-24 | 2017-11-17 | 西安航天动力机械厂 | The core and manufacturing process of different in width transversal inner rib component mould pressing |
| CN107855394A (en) * | 2017-11-06 | 2018-03-30 | 哈尔滨工业大学 | A kind of intersection spinning intensifying method of Mg alloy thin wall cylindrical member |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083974A (en) * | 2021-03-30 | 2021-07-09 | 武汉理工大学 | Rolling-flexible growth composite forming method for thin-wall grid rib cylinder part |
| CN114011940A (en) * | 2021-11-08 | 2022-02-08 | 四川航天长征装备制造有限公司 | Engine shell spinning method for eliminating surface cutter-receiving marks |
| CN114406080A (en) * | 2022-01-24 | 2022-04-29 | 中国航空制造技术研究院 | Extrusion-spinning forming method and forming tool for thin-wall component with inner ribs |
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Application publication date: 20190709 |
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