CN102240692A - Combined extrusion experiment mould of aluminum alloy single/double-cup-shaped piece - Google Patents

Combined extrusion experiment mould of aluminum alloy single/double-cup-shaped piece Download PDF

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Publication number
CN102240692A
CN102240692A CN201110116962XA CN201110116962A CN102240692A CN 102240692 A CN102240692 A CN 102240692A CN 201110116962X A CN201110116962X A CN 201110116962XA CN 201110116962 A CN201110116962 A CN 201110116962A CN 102240692 A CN102240692 A CN 102240692A
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China
Prior art keywords
cup
punch
mould
upper bolster
extrusion experiment
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Pending
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CN201110116962XA
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Chinese (zh)
Inventor
常春
王高潮
董洪波
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Nanchang Hangkong University
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Nanchang Hangkong University
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Priority to CN201110116962XA priority Critical patent/CN102240692A/en
Publication of CN102240692A publication Critical patent/CN102240692A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a combined extrusion experiment mould of an aluminum alloy single/double-cup-shaped piece. A lower mould base is provided with two guide posts; the two guide posts penetrate through an edge pressing ring to be connected with a guide hole positioned on an upper mould base in a matching way; the upper mould base is internally provided with a replaceable upper convex mould; the left side and the right side of the upper convex mould are respectively fixed through holding screws; and the lower mould base is internally provided with a replaceable lower convex mould. The combined extrusion experiment mould disclosed by the invention has the technical effects that generality is high, single/double-cup-shaped combined extrusion experiments on different connecting positions are realized by a set of moulds, and an experimental tool is provided for researching combined extrusion forming processes and mechanisms of cup-shaped pieces with different cup bottom depths.

Description

The two cup shell Compound Extrusion experiment moulds of aluminium alloy single
Technical field
The present invention relates to a kind of Compound Extrusion experiment mould, relate in particular to the two cup shell Compound Extrusion experiment moulds of a kind of aluminium alloy single.
Background technology
The aluminium alloy cup shell is widely used in products such as automobile, aviation and military project body, and its traditional processing method is cold extrusion or hot extrusion, and this method has many superiority such as stock utilization height, good product quality, production efficiency height.Simultaneously, the modern product forward is light-duty, high accuracy and low-cost direction develop, the application of high accuracy, high performance integral Al-alloy forging more and more widely, and product is also more and more higher to the requirement of dimensional accuracy, mechanical performance and the streamline distribution of forging.
In whole complex forging forming process, metal flow complexity and forming process are difficult to control, be very easy to occur defectives such as discontented, the folding and streamline turbulence of filling, by the generation of the mechanism of cup shell extrusion process, forming defects, mould structure etc. are studied, can important directive significance be arranged to the compacting mechanism research of whole complex forging.Factors such as the position of gross weight and thickness, forming process friction are analyzed these factors quantitatively and will be played effective directive function to production practices to the influence of deformation process in the middle of the mould fillet that the primary study influence is shaped, the cavity.
Many scholars and expert study aluminium alloy cup shell extrusion molding both at home and abroad, mostly are to carry out some technological experiments and then do a little mechanism inquiring at relatively more definite products such as relative dimensions, lack the discussion of comprehensive shaping law.Therefore, to grasp aluminium alloy cup shell extrusion molding rule comprehensively, necessary product structure, technological parameter, compacting mechanism and influence factor thereof to the cup shell extruding done special-purpose experiment mould, comprehensively studies from shaping flowing law, forming accuracy and performance quality, technological parameter and influence factor.
Summary of the invention
Do not find to be specifically designed to the experimental provision of the different cup of research end degree of depth cup shell Compound Extrusion forming technology and mechanism as yet, particularly realize the experimental provision of the two cup-shaped Compound Extrusion of list of multiple different gross weights position by a mold.The object of the present invention is to provide the two cup shell Compound Extrusion experiment moulds of a kind of aluminium alloy single, thereby overcome the above problems.
The present invention is achieved like this, it comprises die shoe, guide pillar, holding screw, upper bolster, goes up punch, lower punch, it is characterized in that die shoe is equipped with two guide pillars, the pilot hole that two guide pillars pass flanging ring and upper bolster is connected, be provided with the removable punch of going up in the described upper bolster, the left and right side of last punch is fixed by holding screw respectively, is provided with removable lower punch in the die shoe.
Described flanging ring is connected and the coordinated movement of various economic factors with die shoe with upper bolster respectively according to the experiment action request by the sidewall arm-tie, thereby realizes crush ribs and automatic stripping double action.
The upper surface of described upper bolster is provided with screwed hole, is connected with the equipment top shoe by screw thread.
Describedly go up punch, lower punch can be changed according to experimental design, realizes the extrusion experiment of the dark and gross weight thickness of single, double cup-shaped and different cup.
Technique effect of the present invention is: highly versatile, can realize the experiment of the two cup-shaped Compound Extrusion of list of multiple different gross weights position by a mold, and provide the experiment frock for studying different cup end degree of depth cup shell Compound Extrusion forming technology and mechanism; Easy to operate, have one's own knack for the inloading part structural design after the extruding, the present invention can be used to have the forcing press of following liftout attachment, also can be used for not being with the forcing press of liftout attachment down; Structure is ingenious, has simplified mould structure, and the flanging ring in the mould is connected and the coordinated movement of various economic factors with die shoe with upper bolster respectively according to the experiment action request by the sidewall arm-tie, thereby realizes crush ribs and automatic stripping double action.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a vertical view of the present invention.
Fig. 3 is a sample schematic diagram of the present invention.
In the drawings, 1, upper bolster 2, guide pillar 3, holding screw 4, go up punch 5, flanging ring 6, die shoe 7, lower punch 8, counterdie seat board 9, attachment screw 10, arm-tie.
The specific embodiment
As shown in Figure 1 and Figure 2, this experiment mould part of the lower die is fixed on the forcing press lower table with pressing plate, and the part of the upper die is by on the top shoe or rebound that are threaded onto forcing press; With process and put into die with the cylinder blank that Extruding die chamber minor diameter part divides identical diameter to coat lubricant, along with patrix is descending, last punch 4 at first is pressed into blank and carries out the cup shell backward extrusion, extrudes single cup-shaped when die shoe 6 is no lower punch 7; When adopting the mold insert of band lower punch 7 structures, die shoe 6 can extrude two cup shells.After extrusion molding finishes, last punch 4 is up with the lathe top shoe, to be shaped afterwards by flanging ring 5, sample unloads from last punch 4, for there not being the lathe of liftout attachment down, die shoe 6 and lower punch are moved down upset from press, be installed on the lower punch 7, if convex is more shallow down with a threaded push rod of preparing in addition, the shaping test specimen can be pounded out from die shoe 6 by hand, if convex more deeply then with slide block test specimen is ejected on lathe down.The two cup shell Compound Extrusion experiment moulds of aluminium alloy single as shown in Figure 1, the part of the upper die is made of upper bolster 1, last punch 4, flanging ring 5 and 2 holding screws 3, even in order to guarantee extruded wall portion thickness, guarantee the relative positional accuracy of upper die and lower die, upper die and lower die have adopted guide pillar 2 cunnings to join guiding: die shoe 6 is equipped with two guide pillars 2, and pilot hole has been prepared in upper bolster 1 relevant position; For the ease of changing the last punch 4 of different compression distances, adopt side holding screw 3 to be fixed in the method for the annular groove that punch 4 processed.Flanging ring 5 processing requests and two guide pillars 2 and last punch 4 have good cunning to be equipped with to guarantee the extruding quality, and it is to be used for fixing and the joining arm-tie 10 of flanging ring that there are two screwed holes upper bolster 1 front and back, thereby prevents that flanging ring 5 breaks away from patrixes.
The part of the lower die of this mould is made up of die shoe 6, lower punch 7, guide pillar 2, counterdie seat board 8, and wherein lower punch 7 can require replacing the corresponding of suitable dimension to insert according to the extruding degree of depth.
After shaping is finished smoothly pickup be one of key technology of finishing of Success in Experiment, for preventing that pushing back sample hard-pressed bale is difficult to shirk in last punch 4, die shoe 6 front and back are provided with two screw holes, be used for after extruding is finished, will throwing off with arm-tie after patrix is connected and link with it, thereby test specimen can be taken off from last punch when needed.
The two cup shell Compound Extrusion experiment moulds of aluminium alloy single are used: can be by changing the last punch and the lower punch of different size, squeeze out the various different H as schematically shown in Figure 3 that design according to the research needs and the sample of h value, when h is single cup shell when being zero.
Adopt the forcing press of band pressure sensor, just can record and squeeze the pressure stroke curve of when cup-shaped (single), Compound Extrusion when cup-shaped (two); Can utilize this mould to study of the influence of different product structures to forming quality; Cutting sample after the shaping open can be research extrusion process metal streamline, organizes crystal grain variation etc. that actual foundation is provided; This mould not only can be used for the aluminium alloy shaping simultaneously, also can be used for the suitable metal material forming technique research of other intensity and aluminium alloy, and effectively physical simulation analog study means can be provided in the research of computer simulation technique.So very effective experimental tool of the two cup shell Compound Extrusion experiment mould metallic extrusion moldings researchs of aluminium alloy single.

Claims (4)

1. two cup shell Compound Extrusion experiment moulds of an aluminium alloy single, it comprises die shoe, guide pillar, holding screw, upper bolster, goes up punch, lower punch, it is characterized in that die shoe is equipped with two guide pillars, the pilot hole that two guide pillars pass flanging ring and upper bolster is connected, be provided with the removable punch of going up in the described upper bolster, the left and right side of last punch is fixed by holding screw respectively, is provided with removable lower punch in the die shoe.
2. the two cup shell Compound Extrusion experiment moulds of a kind of aluminium alloy single according to claim 1, it is characterized in that described flanging ring is connected and the coordinated movement of various economic factors with die shoe with upper bolster respectively according to the experiment action request by the sidewall arm-tie, thereby realize crush ribs and automatic stripping double action.
3. the two cup shell Compound Extrusion experiment moulds of a kind of aluminium alloy single according to claim 1 is characterized in that the upper surface of described upper bolster is provided with screwed hole, are connected with the equipment top shoe by screw thread.
4. the two cup shell Compound Extrusion experiment moulds of a kind of aluminium alloy single according to claim 1 is characterized in that describedly going up punch, lower punch can be changed according to experimental design, realize the extrusion experiment of the dark and gross weight thickness of single, double cup-shaped and different cup.
CN201110116962XA 2011-05-08 2011-05-08 Combined extrusion experiment mould of aluminum alloy single/double-cup-shaped piece Pending CN102240692A (en)

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CN201110116962XA CN102240692A (en) 2011-05-08 2011-05-08 Combined extrusion experiment mould of aluminum alloy single/double-cup-shaped piece

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Application Number Priority Date Filing Date Title
CN201110116962XA CN102240692A (en) 2011-05-08 2011-05-08 Combined extrusion experiment mould of aluminum alloy single/double-cup-shaped piece

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CN102240692A true CN102240692A (en) 2011-11-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103737077A (en) * 2013-12-11 2014-04-23 思柏精密模具注塑(无锡)有限公司 Printer terrace die insert block processing method
CN105127230A (en) * 2015-10-21 2015-12-09 南京迪威尔高端制造股份有限公司 Multi-direction combined extrusion die and method for large-dimension flange three-way valve body
CN108655263A (en) * 2018-07-12 2018-10-16 贵州大学 A kind of diel manufacturing different size flange base

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2496577Y (en) * 2001-07-30 2002-06-26 宝山钢铁股份有限公司 Thin slice press die
CN101912926A (en) * 2010-08-17 2010-12-15 上海工程技术大学 Multipurpose sheet metal stamping die-set for positive edge pressing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2496577Y (en) * 2001-07-30 2002-06-26 宝山钢铁股份有限公司 Thin slice press die
CN101912926A (en) * 2010-08-17 2010-12-15 上海工程技术大学 Multipurpose sheet metal stamping die-set for positive edge pressing

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
吉卫等: "铝合金杯形件等温挤压成形工艺研究", 《热加工工艺》, vol. 36, no. 5, 31 March 2007 (2007-03-31) *
徐桂华等: "双杯形件成形过程计算机模拟和工艺分析", 《热加工工艺》, vol. 35, no. 17, 30 September 2006 (2006-09-30) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103737077A (en) * 2013-12-11 2014-04-23 思柏精密模具注塑(无锡)有限公司 Printer terrace die insert block processing method
CN103737077B (en) * 2013-12-11 2016-05-18 思柏精密模具注塑(无锡)有限公司 The processing method of printer punch insert
CN105127230A (en) * 2015-10-21 2015-12-09 南京迪威尔高端制造股份有限公司 Multi-direction combined extrusion die and method for large-dimension flange three-way valve body
CN108655263A (en) * 2018-07-12 2018-10-16 贵州大学 A kind of diel manufacturing different size flange base

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Application publication date: 20111116

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