CN110000321A - The forge moulding technology of aluminum alloy mobile phone shell - Google Patents
The forge moulding technology of aluminum alloy mobile phone shell Download PDFInfo
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- CN110000321A CN110000321A CN201910323510.5A CN201910323510A CN110000321A CN 110000321 A CN110000321 A CN 110000321A CN 201910323510 A CN201910323510 A CN 201910323510A CN 110000321 A CN110000321 A CN 110000321A
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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
- B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
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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
- B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
Abstract
The forge moulding technology of aluminum alloy mobile phone shell of the invention, is prepared by following steps: Step 1: purchase 7 line aluminium alloy of F state, is made annealing treatment later；Step 2: coating one layer of aluminum alloy lubricant on O state aluminium alloy to be formed surface；Step 3: it is cold extrusion shaped, Step 4: the molded part of step 3 is put into frame carries out week along waste material excision on 125 tons of punching machine, and it is punched out processing, obtains punching part；Step 5: the punching part of step 4 is carried out solution treatment, processing is forged and pressed after solution treatment again；Step 6: aluminum alloy mobile phone shell finished product can be obtained Step 7: the T6 state molded part of step 6 is ground by accurate twin grinder in ageing treatment.Compared with prior art, the advantages of being able to achieve 7 is application of the aluminum profile on phone housing, and a whole process has manufacturing procedure short, simple without cutting technology, high in machining efficiency, the product of commensurate structure complexity.
Description
Technical field
The present invention relates to the moulding process of phone housing, in particular to the forging and forming work of a kind of aluminum alloy mobile phone shell
Skill.
Background technique
Metal is all the favorite appearance material of the mankind from ancient times to the present, because beautiful appearance is widely used to mobile phone
On shell, especially aluminium material is widely popularized, and therefore, existing metallic mobile phone shell generallys use aluminium alloy to make.It is existing
Most of the moulding process of aluminum alloy mobile phone shell be using punching press and warm forging pressure mode, the impact style and warm forging pressure side
Formula haves the defects that certain, and as Sheet Metal Forming Technology not can solve the demand of blank material material thickness ununiformity, and process is long, though warm forging can solve
Certainly the problem of structure partial uneven thickness, but there are problems that oxidation back trace, and it is low to forge and press production capacity.
Because of the slight 420MPa of its tension of 7 line aluminium alloys, yield strength 400MPa, elongation percentage 12%, hardness HV140 has
Good intensity, however the problem high because of 7 line aluminium alloy intensity, domestic Forging Technology cannot reach using the elder generation on ground mobile phone
Thus example is groped the improvement with technique to overcome 7 to be that aluminium closes after repeatedly the asking for advice of the present inventor and relevant raw materials producer
Gold can not be using the technical problem of ground mobile phone metalwork.
Summary of the invention
In view of this, 7 line aluminium alloys can be applied on cell phone rear cover the purpose of the present invention is to provide a kind of, simultaneously
Simple process, manufacturing procedure is short, the die casting moulding technique of aluminum alloy mobile phone shell high in machining efficiency.
In order to achieve the above objectives, solution of the invention is: the forge moulding technology of aluminum alloy mobile phone shell, by such as
Lower step is prepared:
Step 1: pretreatment, buys 7 line aluminium alloy of F state, the developed area with phone housing is cut out after purchase
To be formed to match carries out annealing for this to be formed and forms to be formed of O state aluminium alloy；
Step 2: surface treatment, coats one layer of lubrication for aluminum alloy on the surface of to be formed of the O state aluminium alloy of step 1
Powder forms the processing piece of surface coating powdered lubricant；
Step 3: it is cold extrusion shaped, the surface treatment piece of step 2 is placed in extrusion molding dies and uses its ton
Position carries out cold extrusion shaped molding molded part on the hydraulic press of 1000-1200；
The extrusion molding dies have lower die holder and the upper die holder above lower die holder, the top surface of above-mentioned lower die holder
Female die block is installed, on above-mentioned female die block it is recessed have be embedded in interior molding cavity, the bottom of above-mentioned upper die holder for surface treatment piece
Face is equipped with convex module, is convexly equipped with and is protruded into molding cavity on above-mentioned convex module, molded at mobile phone for that will be surface-treated piece
Shell shape and be fixed on outer molding mode, be equipped on above-mentioned female die block be oppositely arranged it is de- outside molding cavity
Glassware, have on above-mentioned defeeder it is hanging be arranged and the de- material portion right above molding cavity, and between two de- material portions between
It is less than molding cavity accent bore away from the outer diameter for being greater than molding mode；
When molding, surface treatment piece is placed in molding cavity, is molded later, using hydraulic press through upper die holder pair when molding
The molded part that the lower pressure of lower die holder matches the surface treatment piece extrusion forming formed in cavity with phone housing out, and at
Type part is fixed in outside molding mode, is finally opened, and upper die holder moves up, when upper die holder is mobile outside the bottom surface in de- material portion and molding mode
The side wall of molded part is in contact, and continues to move up, molded part and molding mode demoulding；
Step 4: the molded part frame of step 3, is carried out turn-cutting die rotary-cut week along waste material by post-processing on 125 tons of punching machine
So that all beads is concordantly punched out processing later, obtains punching part；Step 5: finish forge is handled, the punching part of step 4 is carried out
Solution treatment carries out precision forging processing by precision die again after solution treatment on 500 tons of hydraulic presses, obtains its flatness
Fine forge piece within 0.15；
Step 6: ageing treatment, carries out ageing treatment for the fine forge piece of step 5 and obtains T6 state molded part；
Step 7: the T6 state molded part of step 6 is ground by accurate twin grinder, its plane can be obtained
Spend the aluminum alloy mobile phone shell finished product within 0.05.
The temperature made annealing treatment in above-mentioned steps one is 320 DEG C.
It is above-mentioned cold extrusion shaped to be completed in 4 hours after the annealing of above-mentioned steps one.
Above-mentioned upper die holder, lower die holder, female die block and convex module are rectangular blocks, and above-mentioned female die block locking is in above-mentioned lower die
On the top surface of seat, the size of above-mentioned female die block is less than the size of lower die holder, and above-mentioned convex module locking is in the bottom surface of above-mentioned upper die holder
On, above-mentioned convex module is less than the size of upper die holder, and the top surface of above-mentioned lower die holder, which is located at outside female die block two sides fixed erect respectively, to be had
Opposite, and the limited post upwardly extended, the bottom surface of above-mentioned upper die holder is located on two limited posts that downwardly convex be equipped with can be with limit
Column laminates the block that laminates of cooperation, and disassembly is equipped with the guide post stretched out outside limited block upwards, above-mentioned upper die holder in one limited post
It is offered at guide post for from top to bottom passing through hole through upper die holder, this disassembly in hole is equipped with tight for guide post
The guide sleeve to move up and down in cooperation is inserted into and along it.
Two above-mentioned defeeders are in outside the arranged on left and right sides of molding cavity, and above-mentioned defeeder has fixed block and de- material block, on
Stating fixed block is square block, and the lateral wall of above-mentioned fixed block and above-mentioned female die block is affixed cooperation, and the top surface of fixed block and cavity plate
The top surface of block is flush, and above-mentioned fixed block is locked together by screw and above-mentioned lower die holder, the first end of above-mentioned de- material block with
Fixed block disassembly cooperation, the second end of above-mentioned de- material block overlays on the top surface of female die block, and the second end top of above-mentioned de- material block
Face integrally extends the extension in female die block top face that oriented molding cavity direction extends, and above-mentioned extension is described
De- material portion.
Using the opposite one side of two extensions as opposite, the opposite of above-mentioned extension is made of inclined surface and vertical plane,
Above-mentioned vertical plane is in the lower section of inclined surface, and the inclined surface of two extensions constitutes from top to bottom tapered horn structure, and two is vertical
Spacing between face is greater than the outer diameter of molding mode, and forms the wall that the spacing between mode and vertical plane is less than molded part side wall
It is thick.
After adopting the above technical scheme, the forge moulding technology of aluminum alloy mobile phone shell of the invention, using the aluminium profiles of O state
Material carries out cold extrusion shaped, and the hardness of O state aluminum profile is lower (hardness of treated O state aluminum profile is HV50-55), is easy into
Type, overcoming tradition 7 is that aluminum profile hardness height is not easy the problem of forming, and realizes that 7 be application of the aluminum profile on phone housing, and
When cold extrusion shaped using itself research and develop mold enable aluminum alloy to form in the gap between female die block and convex module, without pair
Raw material cause excessive waste, and utilization rate of raw materials is made to be promoted to 60%, and raw material cost is low, and material passes through male and female mold
The part stress that can discharge product is dissolved by first punching again after the extrusion forming of spacing gap, hardness is high after reducing product solid solution
The problem of counter-punching die tool damages, keeps die life long；A whole process has processing without cutting technology simultaneously
Process is short, simple, high in machining efficiency, the product of commensurate structure complexity, volume production is high and yield reach 99% or more advantage.
Detailed description of the invention
Fig. 1 is the cut-away view of extrusion molding dies；
Fig. 2 is the cut-away view of another angle of extrusion molding dies.
Specific embodiment
In order to further explain the technical solution of the present invention, being explained in detail below by specific embodiment the present invention
It states.
The forge moulding technology of aluminum alloy mobile phone shell, is prepared by following steps:
Step 1: pretreatment, buys 7 line aluminium alloy of F state, the developed area with phone housing is cut out after purchase
To be formed to match carries out annealing for this to be formed and forms to be formed of O state aluminium alloy, this annealing uses
Well-known technique, improved used annealing temperature when being annealing is that 320 DEG C of heat preservation 2H cool to 100 degree with the furnace and come out of the stove
Naturally cool to room temperature；
Step 2: surface treatment, being put into rollers roll 20 minutes in be formed of the O state aluminium alloy of step 1 makes its surface
One layer of lubrication for aluminum alloy powder is uniformly coated, forms surface lubrication layer, this aluminum alloy lubricant is using Zinc stearate powder；
Step 3: it is cold extrusion shaped, the surface treatment piece of step 2 is placed in extrusion molding dies and uses its ton
Position carried out on the hydraulic press of 1000-1200 it is cold extrusion shaped mold molded part, when extruding, the excellent good control of the tonnage of hydraulic press
In 800-1000 tonnage；
As shown in Figure 1, 2, which has lower die holder 1 and the upper die holder 2 above lower die holder 1, lower die
The top surface of seat 1 is equipped with female die block 3, and the bottom surface of upper die holder 1 is equipped with convex module 4, it is preferred that the upper die holder 2, lower die holder 1,
Female die block 3 and convex module 4 are rectangular blocks, and female die block 3 by passing through the screw in lower die holder 1 to female die block 3 from the bottom to top
Locking is on the top surface of lower die holder 1, and the size of female die block 3 is less than the size of lower die holder 1, and convex module 4 is by from top to bottom passing through
Screw in upper die holder 2 to convex module 4 locks on the bottom surface of upper die holder 2, and convex module 4 is less than the size of upper die holder 2, female die block
At 3 end face center position it is recessed have be embedded in interior molding cavity 31 for surface treatment piece 100, the quadrangle for forming cavity 31 is excellent
It is selected as arc angling, the side of molding cavity 31 is inclined surface, and molding cavity 31 forms a from top to bottom tapered loudspeaker chamber,
And the top surface of female die block 3 and molding cavity camber chamfering are arranged, integrally downwardly convex be equipped with protrudes into molding to the bottom surface of convex module 4
In cavity, for will be surface-treated piece it is molded at phone housing shape and be fixed on outer molding mode 41, this shaping mould
Benevolence 41 is in column structure, and molding mode 41 has extension diameter section and the undergauge section below extension diameter section, the bottom surface structure of undergauge section
The molding structure to match with the structure of phone housing inner surface, the difference of the outer diameter of the outer diameter and undergauge section of this extension diameter section be less than at
The wall thickness of the phone housing side wall of type；
The defeeder 5 outside molding cavity 31 being oppositely arranged is installed on the female die block 3, is had on defeeder 5
The hanging de- material portion being arranged and be in right above molding cavity 31, and the spacing between two de- material portions is greater than the outer diameter of molding mode
Less than molding cavity accent bore, it is preferred that two defeeders 5 are in outside the arranged on left and right sides of molding cavity 31, and defeeder 5 has
There are a fixed block 51 and de- material block 52, fixed block 51 is square block, and the lateral wall of fixed block 51 and female die block 3 is affixed cooperation, and consolidates
The top surface of the top surface and female die block 3 of determining block 51 is flush, and fixed block 51 is by from top to bottom passing through in fixed block 51 to lower die holder 1
Screw locked together with lower die holder 1, the first end of de- material block 52 overlay on 51 top surface of fixed block and with fixed block bumps
Locating convex block is convexly equipped on the binding face that cooperation, i.e. de- material block 52 and fixed block 51 are affixed, fixed block 51 is concavely provided with fixed for this
Position convex block tight fit snaps into interior positioning shrinkage pool, and the cooperation using locating convex block and positioning shrinkage pool reaches de- material block and fixed block
Disassembly cooperation, the second end of the de- material block 52 overlays on the top surface of female die block 3, and the second end top surface one of de- material block 52
Body extends the extension 521 in 3 top face of female die block that oriented molding 31 direction of cavity (i.e. inward direction) extends, and extends
Portion 521 is the de- material portion；
When molding, surface treatment piece 100 is placed in molding cavity 31, and upper die holder 2 is moved down to be molded with lower die holder 1, molding
The undergauge section of mode 41 protrudes into forming cavity room, using molding mode 41 move down be surface-treated piece 100 be affixed, after fitting at
Pattern benevolence moves down again makes to be surface-treated piece positioned at molding mode 41 for the lower compressive strain of the surface treatment piece 100 formed in cavity 31
Position in addition can be bent upwards to deform to be sticked forms the side wall of phone housing on the lateral wall of molding mode 41, final to squeeze
Mold the molded part to match with phone housing, and molded part is fixed in outside molding mode 41, later upper die holder 2 to move up with
Lower die holder 1 separates, and upper die holder 2 moves up, and upper die holder 2 is moved to the bottom surface in de- material portion when at de- material portion and forms molded part on mode
The end face of side wall is in contact, and is further continued for moving up, and makes de- material portion will be at using pushing and the confrontation that moves up of molding mode in de- material portion
Type part pushes outside abjection molding mode 41, demoulds with molding mode 41；Because 7 line aluminium alloys are more vivaciously easy natrual ageing hardness liter
High therefore cold extrusion shaped step need to be completed in 4 hours after the annealing of step 1；
Step 4: post-processing, carries out week along waste material with rotary-cutting die on 125 tons of punching machine for the molded part frame of step 3
Excision makes week along concordant；It is punched out processing again later, obtains punching part, this punching processing is well-known technique, the punching of rotary-cut process
Bed uses 125 tons, and punching operation uses 80 tons of punching machines；
Step 5: finish forge is handled, the punching part of step 4 is subjected to solution treatment, passes through precision die after solution treatment again
The processing of finish forge pressure is carried out on 500 tons of hydraulic presses, obtains fine forge piece of its flatness within 0.15, the solution treatment and finish forge
Processing is well-known technique, is no longer repeated herein；
Step 6: ageing treatment, carries out ageing treatment for the fine forge piece of step 5 and obtains T6 state molded part, the ageing treatment
It is also the existing common technological means of aluminium alloy；
Step 7: the T6 state molded part of step 6 is ground by accurate twin grinder, its plane can be obtained
Spend the aluminum alloy mobile phone shell finished product within 0.05.
The forge moulding technology of aluminum alloy mobile phone shell of the invention, has the following beneficial effects:
One, cold extrusion shaped using the aluminum profile progress of O state, the hardness of O state aluminum profile is easy to form, overcomes tradition 7
It is that aluminum profile hardness high (7 be the hardness of aluminum profile be HV140) is not easy the problem of forming, then passes through energy after solid solution and ageing treatment
Reach 7 be aluminum profile hardness, realizing 7 is application of the aluminum profile on phone housing；
Two, the mold researched and developed when cold extrusion shaped using itself is enabled aluminum alloy in the gap between female die block and convex module
Molding, it is not necessary that raw material are caused with excessive waste, makes utilization rate of raw materials be promoted to 60%, raw material cost is low, material weight
Amount saves 100 grams/part, that is, saves the one third material cost of traditional aluminium alloy cell phone rear cover material, entire extrusion forming mold
Lamps structure is simple, easy to process；Meanwhile keeping the stripping rate of entire mold fast and simple by defeeder, in addition, recessed by forming
The restriction of chamber 31 is easy to be surface-treated the placement of piece 100 and molding mode 41 protrudes into, and recycles matching for undergauge section and extension diameter section
The side wall end for closing phone housing when enabling extrusion forming is limited by extension diameter section and the step of undergauge section；
Three, the mode that first punching is dissolved again in entire technique can discharge the certain applications of product, and it is high to reduce product hardness
The problem of counter-punching die tool damages, die life is long；
Four, for a whole process without cutting technology, manufacturing procedure is short, simple, high in machining efficiency, the production of commensurate structure complexity
Product save 10-12 minutes compared with the prior art；
Five, whole operation is simple, is able to achieve volume production operation, and production capacity is high, yield reaches 99% or more.
In the present invention, the excellent good structure of extension 521 is that the opposite opposite of two extensions 521 is by inclined surface and erects
Face composition directly, vertical plane is in the lower section of inclined surface, and from top to bottom tapered bell mouth diameter is formed between two inclined surface, and two is perpendicular
Spacing between facing directly is greater than the outer diameter of molding mode, and forms the spacing between mode and vertical plane and be less than molded part side wall
Thickness；Facilitate spacing of the undergauge section of molding mode across two extensions using the design of inclined surface, play guiding role,
And vertical plane is cooperated to keep extension more smooth to the disengaging operation of molded part.
In the present invention, the top surface of lower die holder 1 be located at outside the left and right sides of female die block 3 respectively it is fixed erect have it is opposite, and
The limited post 11 upwardly extended, the bottom surface of upper die holder 2, which is located at downwardly convex be equipped on two limited posts 11, can laminate with limited post and match
That closes laminates block 21, can play position-limiting action to moving down for upper die holder 2 with the cooperation for laminating block 21 using this limited post 11, avoid
Upper die holder 2 moves down that stroke is excessive and the problem that causes molded part and lower die holder impaired；Further more, disassembly installation in one limited post 11
There is the guide post 61 stretched out outside limited block upwards, upper die holder 1, which is located at, to be offered at guide post 6 for from top to bottom through upper die holder
Across hole, this, which passes through disassembly in hole and is equipped with, is inserted into guide sleeve 62 that is interior and moving up and down along it for guide post tight fit.
Above-described embodiment and attached drawing and non-limiting product form and style of the invention, any technical field it is common
The appropriate changes or modifications that technical staff does it all should be regarded as not departing from patent category of the invention.
Claims (6)
1. the forge moulding technology of aluminum alloy mobile phone shell, which is characterized in that be prepared by following steps:
Step 1: pretreatment, buys 7 line aluminium alloy of F state, the developed area phase with phone housing is cut out after purchase
To be formed matched carries out annealing for this to be formed and forms to be formed of O state aluminium alloy；
Step 2: surface treatment, coats one layer of lubrication for aluminum alloy powder, shape on the surface of to be formed of the O state aluminium alloy of step 1
At the processing piece of surface coating powdered lubricant；
Step 3: it is cold extrusion shaped, the surface treatment piece of step 2 is placed in extrusion molding dies and is existed using its tonnage
It carries out cold extrusion shaped molding molded part on the hydraulic press of 1000-1200；
The extrusion molding dies have lower die holder and the upper die holder above lower die holder, and the top surface of above-mentioned lower die holder is installed
Have a female die block, on above-mentioned female die block it is recessed have be embedded in interior molding cavity for surface treatment piece, on the bottom surface of above-mentioned upper die holder
Equipped with convex module, it is convexly equipped with and is protruded into molding cavity on above-mentioned convex module, it is molded at phone housing for piece will to be surface-treated
Shape and be fixed on outer molding mode, the de- material outside molding cavity being oppositely arranged is installed on above-mentioned female die block
Device, have on above-mentioned defeeder it is hanging be arranged and the de- material portion right above molding cavity, and the spacing between two de- material portions
Outer diameter greater than molding mode is less than molding cavity accent bore；
When molding, surface treatment piece is placed in molding cavity, is molded later, when molding using hydraulic press through upper die holder to lower die
The surface treatment piece extrusion forming formed in cavity is gone out the molded part to match with phone housing, and molded part by the lower pressure of seat
It is fixed in outside molding mode, is finally opened, upper die holder moves up, and forms outside the bottom surface in de- material portion and molding mode when upper die holder is mobile
The side wall of part is in contact, and continues to move up, molded part and molding mode demoulding；
Step 4: post-processing, the molded part frame of step 3 is carried out along waste material to make week in turn-cutting die rotary-cut week on 125 tons of punching machine
Bead is concordantly punched out processing later, obtains punching part；
Step 5: finish forge is handled, the punching part of step 4 is subjected to solution treatment, is existed again by precision die after solution treatment
Precision forging processing is carried out on 500 tons of hydraulic presses, obtains fine forge piece of its flatness within 0.15；
Step 6: ageing treatment, carries out ageing treatment for the fine forge piece of step 5 and obtains T6 state molded part；
Step 7: the T6 state molded part of step 6 is ground by accurate twin grinder, its flatness can be obtained and exist
Aluminum alloy mobile phone shell finished product within 0.05.
2. the forge moulding technology of aluminum alloy mobile phone shell according to claim 1, it is characterised in that: in above-mentioned steps one
The temperature of annealing is 320 DEG C.
3. the forge moulding technology of aluminum alloy mobile phone shell according to claim 1, it is characterised in that: above-mentioned cold-extruded is pressed into
Type need to be completed in 4 hours after the annealing of above-mentioned steps one.
4. the forge moulding technology of aluminum alloy mobile phone shell according to claim 1, it is characterised in that: above-mentioned upper die holder,
Lower die holder, female die block and convex module are rectangular blocks, and above-mentioned female die block locking is on the top surface of above-mentioned lower die holder, above-mentioned cavity plate
The size of block is less than the size of lower die holder, and on the bottom surface of above-mentioned upper die holder, above-mentioned convex module is less than upper for above-mentioned convex module locking
The size of die holder, the top surface of above-mentioned lower die holder, which is located at outside female die block two sides fixed erect respectively, to be had opposite, and is upwardly extended
Limited post, the bottom surface of above-mentioned upper die holder be located on two limited posts it is downwardly convex be equipped with can laminate cooperation with limited post laminate block,
Disassembly is equipped with the guide post stretched out outside limited block upwards in one limited post, and above-mentioned upper die holder, which is located at guide post, offers confession
From top to bottom run through upper die holder passes through hole, this passes through to dismantle to be equipped in hole and is inserted into interior for guide post tight fit and makees along it
The guide sleeve moved up and down.
5. the forge moulding technology of aluminum alloy mobile phone shell according to claim 4, it is characterised in that: two above-mentioned defeeders
Outside arranged on left and right sides in molding cavity, above-mentioned defeeder has fixed block and de- material block, and above-mentioned fixed block is square block, on
The lateral wall for stating fixed block and above-mentioned female die block is affixed cooperation, and the top surface of fixed block and the top surface of female die block are flush, above-mentioned
Fixed block is locked together by screw and above-mentioned lower die holder, and first end and the fixed block disassembly of above-mentioned de- material block cooperate, above-mentioned
The second end of de- material block overlays on the top surface of female die block, and integrally the oriented molding of extension is recessed for the second end top surface of above-mentioned de- material block
The extension in female die block top face that cavity direction extends, above-mentioned extension are the de- material portion.
6. the forge moulding technology of aluminum alloy mobile phone shell according to claim 5, it is characterised in that: with two extension phases
Pair one side be opposite, the opposite of above-mentioned extension is made of inclined surface and vertical plane, and above-mentioned vertical plane is in inclined surface
Lower section, the inclined surface of two extensions constitutes from top to bottom tapered horn structure, and the spacing between two vertical planes is greater than molding
The outer diameter of mode, and form the wall thickness that the spacing between mode and vertical plane is less than molded part side wall.
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| CN201910323510.5A CN110000321B (en) | 2019-04-22 | 2019-04-22 | Forging and pressing forming process of aluminum alloy mobile phone shell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110899446A (en) * | 2019-11-27 | 2020-03-24 | 珠海蓝冠电子科技有限公司 | Cold forging and stretching method and die for charger shell |
| CN116251916A (en) * | 2023-03-03 | 2023-06-13 | 哈尔滨工业大学 | Back extrusion forming and demolding method for deep cavity inner rib member with U-shaped notch |
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| CN116251916A (en) * | 2023-03-03 | 2023-06-13 | 哈尔滨工业大学 | Back extrusion forming and demolding method for deep cavity inner rib member with U-shaped notch |
| CN116251916B (en) * | 2023-03-03 | 2023-08-11 | 哈尔滨工业大学 | Back extrusion forming and demolding method for deep cavity inner rib member with U-shaped notch |
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