CN109604359A - A kind of manufacturing process of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy - Google Patents
A kind of manufacturing process of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy Download PDFInfo
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- CN109604359A CN109604359A CN201811647295.6A CN201811647295A CN109604359A CN 109604359 A CN109604359 A CN 109604359A CN 201811647295 A CN201811647295 A CN 201811647295A CN 109604359 A CN109604359 A CN 109604359A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/001—Extruding metal; Impact extrusion to improve the material properties, e.g. lateral extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
Abstract
A kind of manufacturing process of the channel pressings bases such as two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy disclosed by the invention, this method is related to a kind of shaping dies of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy, the mold includes upper die holder, punch-pin and cavity plate, cavity plate is arranged below punch-pin, cavity plate is in inverted " t " shape, it is connected to by the identical vertical-type chamber of diameter with horizontal type chamber, spherical tanks are formed in the intersection of vertical-type chamber and horizontal type chamber simultaneously, spherical tanks respectively with vertical-type chamber, the junction of horizontal type chamber is equipped with small round corner, vertical-type chamber enters for punch-pin.The present invention waits channel pressings structure using vertical-type chamber and the two-way of horizontal type chamber composition, in channel intersection, spherical tanks are set, carry out multi-pass deformation test, realize the medium-sized chamber corner of material extrusion process it is shear-deformable in spherical tanks upset extrusion deformation complex superposition, reach buildup of material plastic history, the final microstructure for realizing refinement Mg-Gd-Y-Zn-Zr magnesium alloy blank, promotes alloy mechanical property.
Description
Technical field
The invention belongs to metal material plastic processing and forming technique field, in particular to a kind of Mg-Gd-Y-Zn-Zr magnesium
The manufacturing process of the channel pressings bases such as the two-way expansion of alloy.
Background technique
As the continuous consumption of natural energy resources and the form close to exhaustion are constantly severe, equipping light-weighted develop into must
Right guiding, magnesium is as most light metal, density 1.74g/cm3, only 2/3rds of aluminium, a quarter of steel, titanium
One third.Magnesium alloy possesses high specific strength, specific stiffness, corrosion resistance and electromagnetic shielding characteristic and also becomes simultaneously
The important choice direction of aerospace and electronic material.Because of LPSO (Long Period in Mg-Gd-Y-Zn-Zr alloy
Stacking Ordered) presence of structure makes alloy possess performance more higher than traditional magnesium alloy, and research finds LPSO phase
Tool is there are two types of structure-sheet and bulk, and wherein the kinking deformation mechanism of sheet LPSO phase is Mg-Gd-Y-Zn-Zr alloy weight
One of deformation mechanism wanted, the deformation that slip system lower for temperature is difficult in the case of starting play coordinative role, are that one kind mentions
Rise the advantageous phase of material plasticity；Another bulk LPSO phase is a kind of hardening phase, and hardening, which mutually is easy to be used as in deformation process, to be split
At the generation in line source, macro manifestations are that alloy face crack occurs.Plastic deformation is the common method that alloy improves material property,
Traditional plastic deformation blank-making method, such as upset pulling blank-making method, it is simple and convenient easily operated, but have dependent variable small
The shortcomings that, it is difficult to reach the fine of material；Large plastometric set (Severe Plastic Deformation, SPD) is by drawing
Enter big dependent variable to realize tissue crystal grain refinement, smash big blocky LPSO phase, so that structural constituent becomes finer and close equal
It is even, reach the two-way promotion of the strength of materials and plasticity.
The quality of one of important procedure that blank-making technology is manufactured as forging, forging blank directly affects the work of post forming
Skill.ECAE (Equal Channel Angular Extrusion) technology as more mature large plastometric set method
It is studied extensively by people, the improving technology at the same time based on ECAE technology is also furtherd investigate by people, Talebanpour et al.
Two-way Equal Channel Angular Pressing DECLE (Dual Equal Channel Lateral Extrusion) technology of research is in fine aluminium 9
It observed Ultra-fine Grained (1 μm of <) after secondary test, simultaneously bi-directionally squeeze and reduce extruding force, increase base efficiency.Zhou et al. is ground
Pressure RU (Repeated Upsetting) technical application of pier repeatedly studied carefully on Mg-9.8Gd-2.7Y-0.4Zr magnesium alloy, obtains
Crystallite dimension is at 2.5-3.0 μm.
Based on high performance requirements required for above research achievement and current engineering material, in order to make Mg-Gd-Y-Zn-
Zn magnesium alloy smashes blocky second phase, and structural constituent is more uniform, the channel pressings such as two-way expansion (Dual Expansion
Equal Channel Lateral Extrusion, DEECLE) it is the new forming technology that this case proposes.
Summary of the invention
For existing processing technology status, the present invention proposes a kind of channels such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy
The manufacturing process of base is squeezed, realizes the microstructure of refinement Mg-Gd-Y-Zn-Zr magnesium alloy blank, promotes alloy mechanical property
Purpose.
To achieve the goals above, technical scheme is as follows:
A kind of manufacturing process of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy, this method are related to one
The shaping dies of the channel pressings bases such as kind of the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy, the mold include upper die holder, punch-pin and
Cavity plate, the punch-pin are cylindrical body, are vertically mounted on upper die holder, and the cavity plate is arranged below punch-pin, and the cavity plate is in
It sets "T"-shaped, is connected to by the identical vertical-type chamber of diameter with horizontal type chamber, while in the intersection of vertical-type chamber and horizontal type chamber
Place forms spherical tanks, and spherical tanks are equipped with small round corner with the junction of vertical-type chamber, horizontal type chamber respectively, vertical-type chamber for punch-pin into
Enter, this method is specially following steps:
S1: rodlike blanking；
S2:415 DEG C × 16h Homogenization Treatments；
S3: mold assembly；
S4: being put into cavity plate by the rodlike blank of Homogenization Treatments from vertical-type chamber, and then punch-pin from top, hang down by merging
Mold and rodlike blank, are finally put into heating furnace together and carry out heating and thermal insulation, after heat preservation, in universal material by straight type chamber
The test of constant temperature multi-pass deformation is carried out on testing machine: guaranteeing blank at control punch-pin uniform descent to punch-pin bottom surface and horizontal type chamber
Upper surface it is opposed flattened, it is above-mentioned be a time deformation test, after a time deformation test, take out blank protect into the water
Protect Deformation structure, polish off after cooling extruding after blank formed " hemispherical " structure, be put into cavity plate be added to predetermined temperature into
Two passage deformation test of row；
The placement position of blank can be there are two types of route deformation rule A before S5: two passage deformation tests: by position of polishing
The horizontal type chamber for setting alignment is put；B: the position for the blank aligned perpendicular type chamber polished is put, is carried out after putting good position
Two passage deformation experiments are equally cooled down, are polished, being put into cavity plate after the completion of two passage deformation tests, do standard for the deformation of three passages
It is standby；
When S6: three passage deformation tests, the placement position of blank still remains two kinds of route deformation rules of A, B, and at this time two
Passage deformation application A route continues using A route, as A-A；Continue to continue to use B route, as B-B using B route；Pendulum
Three passage deformation experiments are carried out after putting position well, same cooling, polishing, finally obtains finished product after the completion of test.
Preferably, the multi-pass deformation test includes the deformation test of three passages or more, continues to continue to use route deformation rule
Rule is tested, until expected setting target is completed in test.
Preferably, the cavity plate is equipped with fastening screw, and the cavity plate is divided into upper layer and lower layer, is fixed on one using fastening screw
It rises, the parallel plane where the diameter of horizontal type chamber is arranged in layering face.
After adopting the above scheme, compared with traditional upset pulling blank-making method, beneficial effect is the present invention: (1) tiring out
Product Ying Bian great.Traditional blank-making method strain is difficult more than 1, and deformation effect is limited.Blank-making method of the invention is big based on SPD
The method that plastic deformation technology proposes, strain are much larger than traditional upset pulling method.(2) a variety of stressed bonds.Conventional method
It is generally more single by stress, tensile stress or compression.Blank-making method of the invention, it is spherical empty by a variety of stressed bonds
The design of chamber realizes the upset and extrusion process of Mg-Gd-Y-Zn-Zr alloy, while spherical tanks and vertical-type chamber and horizontal type
The junction of chamber realizes the shear stress deformation of metal.(3) deformation uniformity is good.The upset method of tradition is generally open system
Base, material large deformation region concentrates on the easily-deformable area of metal inside, and the stagnant zone contacted with punch-pin with cavity plate is then basic
It does not deform, this has resulted in the uneven of material deformation.The design that the present invention plants spherical tanks realizes the upset of metal and squeezes
Composite deformation out enhances the uniformity of material.
The present invention has the advantages that (1) deformation force is small compared with ECAE method.The design of two-way extrusion structure
Forming force is substantially reduced compared to ECAE, increases service life of a machine, reduces cost.(2) spherical tanks design variations are bigger.ECAE technology
As the large plastometric set method studied extensively, there is positive facilitation to crystal grain refinement and material property raising.This
Invention devises spherical tanks compared to ECAE, possesses with ECAE technology identical shear-deformable, and deformed region is under the action of shear force
Big plasticity high stress deformation occurs, so that crystal grain refinement, the second phase of bulk is broken, and even tissue is fine and close, obtains of good performance
Alloy material can obtain more efficient base effect in addition, further increasing metal upset extrusion composite deformation in spherical tanks
Rate, and the spherical cavity of channel junction designs so that the flowing of material inside it becomes more complicated upset and extrusion
Mixed regime of flow is a kind of metal flow mode diversification, the big novel large plastometric set blank-making method of accumulation strain.
The present invention has the advantages that (1) is more suitable the Mg-Gd-Y- of use compared with repeatedly extruding RU method
The metal containing blocky harder second phase such as Zn-Zr magnesium alloy.Design is repeatedly extruded according to Shanghai Communications University, is vertically being led to
Fillet is not designed at road and horizontal channel, on the one hand enhances shear stress, but Mg-Gd-Y-Zn-Zr magnesium alloy kind is contained
The blocky LPSO phase having is easy to generate shear fissure in deformation.The small fillet that the present invention designs excessively solves this and asks
Topic.(2) spherical tanks design variations are more abundant.It is multiple that spherical storehouse design in the present invention realizes upset extrusion of the metal in cavity
Fastening deformation keeps the deformation of material more abundant.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention into
Row is further described.
Detailed description of the invention
Fig. 1 is the positive view of the blank after a time deformation test of the present invention；
Fig. 2 is cross-sectional view of the Fig. 1 along Y-Y；
Fig. 3 is that the present invention carries out the workpiece schematic diagram completed after multi-pass deformation test；
Fig. 4 is cross-sectional view of the Fig. 3 along Z-Z；
Fig. 5 is assembling schematic diagram of the present invention；
Fig. 6 is the structural schematic diagram of punch-pin of the present invention；
Fig. 7 is the structural schematic diagram of the fixed cavity plate of fastening screw of the present invention；
Fig. 8 is the top view of cavity plate of the present invention；
Fig. 9 is cross-sectional view of the Fig. 7 along L-L；
Figure 10 is the exploded view of Fig. 7；
Figure 11 is upper die holder schematic diagram of the present invention；
Figure 12 is working state schematic representation one of the invention；
Figure 13 is working state schematic representation two of the invention；
Figure 14 is working state schematic representation three of the invention；
Figure 15 is the enlarged drawing in Figure 12 at G.
Label declaration:
1- upper die holder, 11- square groove, 12- bellmouth, 2- punch-pin, 21- fixed part, 3- fastening nut, 4- fastening screw,
5- cavity plate, 51- vertical-type chamber, 52- horizontal type chamber, 53- spherical tanks, 54- cavity plate upper layer, 541- positioning groove, under 55- cavity plate
Layer, 551 positioning protrusions, 6- blank, 61- hemispherical.
Specific embodiment
A kind of manufacturing process of the channel pressings bases such as two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy that the present invention discloses,
This method is related to a kind of shaping dies of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy, refering to fig. 1-15,
The mold includes upper die holder 1, punch-pin 2 and cavity plate 5.
As shown in fig. 6, punch-pin 2 is cylindrical body, the upper end of punch-pin 2 forms the fixed part 21 radially extended, and fixed part 21 is in
Rectangular, as shown in figure 11, upper die holder 1 opens up square groove 11, is placed in for fixed part 21, after the completion of merging, 1 lower end of upper die holder is equipped with
Fastening nut 3, and the external screw thread cooperated with fastening nut 3 is formed, fastening nut 3 wears punch-pin 2 and is clamped to fixed part 21,
It is fixed on 2 coaxial vertical of punch-pin on upper die holder 1.What external screw thread and fastening nut 3 cooperated and reach fastening punch-pin 2, prevent from falling off
Purpose is not high to mold requirement for bearing capacity and easy to loading and unloading since forming force is smaller；1 surface of upper die holder is evenly distributed with simultaneously
Facilitate the bellmouth 12 for carrying out handling mold.
Upper die holder 1 also opens up sliding slot (not shown), and sliding slot is communicated with square groove 11, and fixed part 21 is slided by sliding slot
It is placed in square groove 11.Sliding slot is that need to only back out fastening nut 3 when replacing punch-pin 2 used in replacement punch-pin 2, release old punch-pin
2, it is put into new punch-pin 2；Since fashion of extrusion is forward extrusion, the not set fillet of punch-pin 2 and work belt, it is therefore an objective to greatest extent
Prevent backward extrusion.
Cavity plate 5 is arranged below punch-pin 2, and as shown in Figure 7, Figure 8, cavity plate 5 is in inverted " t " shape, identical vertical by diameter
Type chamber 51 is connected to horizontal type chamber 52, similar with 90 ° of corner in ECAE technology, unlike channel be it is two-way, vertically
Type chamber 51 is for punch-pin 2, into simultaneously in the intersection of vertical-type chamber 51 and horizontal type chamber 52 formation spherical tanks 53.Spherical tanks 53 with
Vertical-type chamber 51 keeps concentricity, keeps concentricity with horizontal type chamber 52.Spherical tanks 53 respectively with vertical-type chamber 51, horizontal type chamber
52 junction is equipped with small round corner, while guaranteeing shearing force, prevents too strong shearing force and causes to deform opening for blank 6
It splits.
As shown in Figure 10, in order to facilitate feeding, cavity plate 5 is designed using layer-stepping, and cavity plate 5 divides for upper layer and lower layer 54,55, is made
It is fixed together with fastening screw 4, the parallel plane where the diameter of horizontal type chamber 52 is arranged in layering face.Such as Fig. 9, in order to protect
Card cavity plate 5 docks accurately, and cavity plate lower layer 55 is equipped with positioning protrusion 551, and the position of the corresponding positioning protrusion 551 in cavity plate upper layer 54 is formed
Positioning groove 541, positioning protrusion 551 are combined together with positioning groove 541, are fixed finally by fastening screw 4.
The present embodiment illustrates the fortune of mold by taking the deformation of the rodlike blank 6 of the Mg-Gd-Y-Zn-Zr of Φ 10mm × 30mm as an example
Dynamic and method and step, Figure 12,13 and 14 are the deformation state that mold works, and carry out forward extrusion for convenience, punch-pin 2 and are hung down
Straight type chamber 51 is provided with the unilateral interval h of 0.1mm, and refering to fig. 15.It is first deformation shape of metal stock 6 shown in Figure 12
State, blank 6 carry out mushrooming deformation in spherical tanks 53；It is second deformation state of metal stock 6, blank 6 shown in Figure 13
It is expressed into after upset in horizontal type chamber 52, blank 6 receives multiaxial stress, including compression, shear stress at this time, golden at this time
It is the most violent for belonging to the deformation of blank 6；Figure 14 is the third deformation state of metal stock 6, and the deformation of blank 6 is completed.
As shown in figure 5, the vertical-type chamber 51 in cavity plate 5 is that diameter is identical with horizontal type chamber 52, after the completion of squeezing in this way
Workpiece only need slightly to handle and can continue to use original mould and repeatedly deformed.
A kind of manufacturing process of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy, this method specifically walk
Suddenly are as follows:
S1: rodlike blanking；
S2:415 DEG C × 16h Homogenization Treatments；
S3: mold assembly；
S4: it is put into cavity plate 5 by the rodlike blank 6 of Homogenization Treatments from vertical-type chamber 51, then punch-pin 2 is set from top
Enter vertical-type chamber 51, finally mold and rodlike blank 6 are put into together in heating furnace and carry out heating and thermal insulation, after heat preservation, at
Shape process carries out on universal testing machine, by taking experimental temperature is 480 DEG C as an example, carries out three passage deformation test of constant temperature: control
2 uniform descent of punch-pin processed to 2 bottom surface of punch-pin at horizontal type chamber 52 guarantee 6 upper surface of blank it is opposed flattened, it is above-mentioned for together
Secondary deformation test after a time deformation test, unclamps the taking-up blank 6 of fastening screw 4 and protects Deformation structure into the water, to
Blank 6 forms " hemispherical " 61 structure after polishing off extruding after cooling, is put into cavity plate 5 and is added to predetermined temperature two passage changes of progress
Shape test；
The placement position of blank 6 can be there are two types of route deformation rule A before S5: two passage deformation tests: will polish
The horizontal type chamber 52 of position alignment is put；B: the position for the 6 aligned perpendicular type chamber 51 of blank polished is put.Put good position
After carry out two passage deformation experiments, equally cool down, polish, being put into cavity plate 5 after the completion of two passage deformation tests, being the change of three passages
Shape is prepared.
When S6: three passage deformation tests, the placement position of blank 6 still remains two kinds of route deformation rules of A, B, and at this time two
Passage deformation application A route continues using A route, as A-A；Continue to continue to use B route, as B-B using B route.Pendulum
Three passage deformation experiments are carried out after putting position well, same cooling, polishing, finally obtains finished product after the completion of test.
It should be noted that multi-pass deformation test, four-pass deformation test, five can be carried out as do not reached expected setting target
Passage deformation test ..., which continues to continue to use above-mentioned route deformation rule, to be tested, until expected setting target is completed in test, is such as schemed
3, shown in 4, the present embodiment can be realized using three passages.Facilitate carry out microstructure in addition, needing to keep sample per pass when test
It observes and detects with mechanical property.
The parameter designing of multi-pass deformation test, including extrusion speed, temperature, lubrication selection, isothermal test design temperature
Including 380 DEG C, 440 DEG C, 480 DEG C, 500 DEG C；Extrusion speed selects 0.8mm/s, 1.0mm/s, 1.5mm/s；Lubrication is selected as oil
Two kinds of base graphite, drystone ink powder, after experimental condition is ready to, a time for carrying out Mg-Gd-Y-Zn-Zr magnesium alloy bar is squeezed
Pressure test.
The present invention is compared with traditional upset pulling blank-making method, and beneficial effect is: (1) accumulation strain is big.Traditional
Blank-making method strain is difficult more than 1, and deformation effect is limited.Blank-making method of the invention is mentioned based on SPD severe Plastic Deformation Methods
Method out, strain are much larger than traditional upset pulling method.(2) a variety of stressed bonds.Conventional method generally by stress compared with
To be single, tensile stress or compression.Blank-making method of the invention realizes the design of a variety of stressed bonds, spherical tanks 53
The upset and extrusion process of Mg-Gd-Y-Zn-Zr alloy, while the connection of spherical tanks 53 and vertical-type chamber 51 and horizontal type chamber 52
Place realizes the shear stress deformation of metal.(3) deformation uniformity is good.The upset method of tradition is generally open base, material
Large deformation region concentrates on the easily-deformable area of metal inside, and does not occur substantially then with the stagnant zone that punch-pin 2 is contacted with cavity plate 5
Deformation, this has resulted in the uneven of material deformation.The upset extrusion that the design of spherical tanks 53 realizes metal in the present invention is answered
Fastening deformation enhances the uniformity of material.
The present invention has the advantages that (1) deformation force is small compared with ECAE method.The design of two-way extrusion structure
Forming force is substantially reduced compared to ECAE, increases service life of a machine, reduces cost.(2) 53 design variations of spherical tanks are bigger.ECAE skill
Art has positive facilitation as the large plastometric set method studied extensively, to crystal grain refinement and material property raising.
The present invention devises spherical tanks 53 compared to ECAE, and identical shear-deformable, work of the deformed region in shearing force is possessed with ECAE technology
Big plasticity high stress deformation occurs with lower, so that crystal grain refinement, the second phase of bulk is broken, and even tissue is fine and close, and it is good to obtain performance
Good alloy material can obtain more efficient system in addition, further increasing metal upset extrusion composite deformation in spherical tanks 53
Base efficiency, and the spherical cavity of channel junction design so that the flowing of material inside it become it is more complicated it is upset with it is crowded
Mixed regime of flow out is a kind of metal flow mode diversification, the big novel large plastometric set blank-making method of accumulation strain.
The present invention has the advantages that (1) is more suitable the Mg-Gd-Y- of use compared with repeatedly extruding RU method
The metal containing blocky harder second phase such as Zn-Zr magnesium alloy.Design is repeatedly extruded according to Shanghai Communications University, in vertical-type
Fillet is not designed at chamber 51 and horizontal type chamber 52, on the one hand enhances shear stress, but for Mg-Gd-Y-Zn-Zr magnesium alloy
The blocky LPSO phase that kind contains is easy to generate shear fissure in deformation.The small round corner that the present invention designs excessively solves this
Problem.(2) 53 design variations of spherical tanks are more abundant.It is upset crowded in cavity that spherical storehouse design in the present invention realizes metal
Composite deformation out keeps the deformation of material more abundant.
The above is only specific embodiments of the present invention, not to the restriction of protection scope of the present invention, are not limited only to single water
Flat pattern cavity mold lamps structure, including multilevel type cavity mould structure.The equivalent variations that all mentalities of designing according to this case are done, each falls within
The protection scope of this case.
Claims (3)
1. a kind of manufacturing process of the channel pressings bases such as two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy, this method are related to one kind
The shaping dies of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy, the mold include upper die holder, punch-pin and recessed
Mould, the punch-pin are cylindrical body, are vertically mounted on upper die holder, and the cavity plate is arranged below punch-pin, and the cavity plate is in inversion
It is "T"-shaped, it is connected to by the identical vertical-type chamber of diameter with horizontal type chamber, while in the intersection of vertical-type chamber and horizontal type chamber
Formed spherical tanks, spherical tanks respectively with the junction of vertical-type chamber, horizontal type chamber be equipped with small round corner, vertical-type chamber for punch-pin into
Enter, this method is specially following steps:
S1: rodlike blanking；
S2:415 DEG C × 16h Homogenization Treatments；
S3: mold assembly；
S4: being put into cavity plate by the rodlike blank of Homogenization Treatments from vertical-type chamber, and then punch-pin is placed in vertical-type from top
Mold and rodlike blank are finally put into heating furnace together and carry out heating and thermal insulation, after heat preservation, in universal material testing by chamber
The test of constant temperature multi-pass deformation is carried out on machine: guaranteeing table on blank at control punch-pin uniform descent to punch-pin bottom surface and horizontal type chamber
Face it is opposed flattened, it is above-mentioned be a time deformation test, after a time deformation test, take out blank protect change into the water
Shape tissue, blank forms " hemispherical " structure after polishing off extruding after cooling, is put into cavity plate and is added to predetermined temperature progress two
Passage deformation test；
The placement position of blank can be there are two types of route deformation rule A before S5: two passage deformation tests: by position pair of polishing
Quasi- horizontal type chamber is put；B: the position for the blank aligned perpendicular type chamber polished is put, carries out two after putting good position
Secondary deformation experiment is equally cooled down, is polished, being put into cavity plate after the completion of two passage deformation tests, is prepared for the deformation of three passages；
When S6: three passage deformation tests, the placement position of blank still remains two kinds of route deformation rules of A, B, at this time two passages
Deformation application A route continues using A route, as A-A；Continue to continue to use B route, as B-B using B route；It is well placed
Three passage deformation experiments are carried out behind position, same cooling, polishing, finally obtains finished product after the completion of test.
2. a kind of forming side of the channel pressings bases such as two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy as described in claim 1
Method, it is characterised in that: the multi-pass deformation test includes the deformation test of three passages or more, continues to continue to use route deformation rule
It is tested, until expected setting target is completed in test.
3. a kind of forming side of the channel pressings bases such as two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy as described in claim 1
Method, it is characterised in that: the cavity plate is equipped with fastening screw, and the cavity plate is divided into upper layer and lower layer, is fixed on one using fastening screw
It rises, the parallel plane where the diameter of horizontal type chamber is arranged in layering face.
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| CN111530955A (en) * | 2020-05-21 | 2020-08-14 | 燕山大学 | Double-channel variable-channel corner extrusion forming device and forming method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1140870A1 (en) * | 1980-10-22 | 1985-02-23 | Завод-втуз при Московском автомобильном заводе им.И.А.Лихачева | Metod of machining metals |
| JP3268639B2 (en) * | 1999-04-09 | 2002-03-25 | 独立行政法人産業技術総合研究所 | Strong processing equipment, strong processing method and metal material to be processed |
| CN102500958A (en) * | 2011-11-07 | 2012-06-20 | 绍兴市天龙锡材有限公司 | Preparation method and mold of seamless flux-cored zinc-aluminium alloy welding wire |
| CN205551111U (en) * | 2016-04-27 | 2016-09-07 | 徐州工程学院 | When spherical corner inflation extrusion die of passageway |
| CN106825097A (en) * | 2017-04-01 | 2017-06-13 | 哈尔滨理工大学 | A kind of Equal-channel Angular Pressing and reciprocating crowded torsion compound molding device and method |
| CN107350305A (en) * | 2017-07-03 | 2017-11-17 | 中北大学 | A kind of extrusion stretching manufacturing process of high-performance magnesium-alloy light-wall pipe |
| CN207013473U (en) * | 2017-08-03 | 2018-02-16 | 徐州工程学院 | Inverted T shaped spherical corner variable conduit Bidirectional-squeezing mould |
-
2018
- 2018-12-30 CN CN201811647295.6A patent/CN109604359B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1140870A1 (en) * | 1980-10-22 | 1985-02-23 | Завод-втуз при Московском автомобильном заводе им.И.А.Лихачева | Metod of machining metals |
| JP3268639B2 (en) * | 1999-04-09 | 2002-03-25 | 独立行政法人産業技術総合研究所 | Strong processing equipment, strong processing method and metal material to be processed |
| CN102500958A (en) * | 2011-11-07 | 2012-06-20 | 绍兴市天龙锡材有限公司 | Preparation method and mold of seamless flux-cored zinc-aluminium alloy welding wire |
| CN205551111U (en) * | 2016-04-27 | 2016-09-07 | 徐州工程学院 | When spherical corner inflation extrusion die of passageway |
| CN106825097A (en) * | 2017-04-01 | 2017-06-13 | 哈尔滨理工大学 | A kind of Equal-channel Angular Pressing and reciprocating crowded torsion compound molding device and method |
| CN107350305A (en) * | 2017-07-03 | 2017-11-17 | 中北大学 | A kind of extrusion stretching manufacturing process of high-performance magnesium-alloy light-wall pipe |
| CN207013473U (en) * | 2017-08-03 | 2018-02-16 | 徐州工程学院 | Inverted T shaped spherical corner variable conduit Bidirectional-squeezing mould |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111530955A (en) * | 2020-05-21 | 2020-08-14 | 燕山大学 | Double-channel variable-channel corner extrusion forming device and forming method |
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