CN102319868A - Forging molding method of large-scale aluminum alloy conical ring - Google Patents

Forging molding method of large-scale aluminum alloy conical ring Download PDF

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Publication number
CN102319868A
CN102319868A CN201110225949A CN201110225949A CN102319868A CN 102319868 A CN102319868 A CN 102319868A CN 201110225949 A CN201110225949 A CN 201110225949A CN 201110225949 A CN201110225949 A CN 201110225949A CN 102319868 A CN102319868 A CN 102319868A
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CN
China
Prior art keywords
forging
conical ring
flat anvil
ingot casting
aluminum alloy
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Application number
CN201110225949A
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Chinese (zh)
Inventor
曾庆华
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西南铝业(集团)有限责任公司
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Priority to CN201110225949A priority Critical patent/CN102319868A/en
Publication of CN102319868A publication Critical patent/CN102319868A/en

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Abstract

The invention discloses a forging molding method of a large-scale aluminum alloy conical ring, and the method comprises the following steps: heating a cast ingot: heating the large-size cast ingot to the appropriate forging temperature; forging: performing compression and stretching on the cast ingot on a hydraulic machine multiple times; upsetting into a cone: utilizing an upper flat anvil and a lower flat anvil to upset the cast ingot repeatedly so as to enable the cast ingot to form the cone; punching: adopting a conical punch to punch a center hole on the cone so as to form the conical ring; machining: performing machining and shaping treatment on the conical ring so as to keep the obliqueness of the inner surface and the obliqueness of the outer surface of the conical ring consistent; and reaming: supporting a core rod through a saddle support, utilizing the core rod to prop against the inner surface of the conical ring and utilizing the upper flat anvil to press the outer surface of the conical ring so as to expand the inner hole of the conical ring. The method provided by the invention has the advantages of low cost, high utilization rate of materials, capability of ensuring that internal tissues of the conical ring can not be damaged and the like.

Description

A kind of large aluminum alloy taper ring method for forging and molding
Technical field
The present invention relates to forge manufacture field, in particular, relate to a kind of large aluminum alloy taper ring method for forging and molding.
Background technology
Traditional mode of production aluminium alloy taper ring is mainly leaned on following dual mode, and first kind is die forging method: through making and the approaching mould of forging ' s block dimension, hot forging is shaped on large hydraulic press.Second kind for forging straight ring method: forge and produce the consistent straight ring in the inside and outside footpath of upper and lower end face, through obtain corresponding conical ring size at machining process.
In research and practice process to prior art, inventor of the present invention finds that there is following problem in prior art:
For die forging method, it more is applicable to the small-sized taper ring that batch is bigger, and for the large forgings of external diameter greater than 1200mm, die cost is very high and need hydraulic press more than 4.5 ten thousand tons, and existing domestic do not have to equip accordingly.For forging straight ring method, directly encircle reaming and cooperate machining mode production, exist circle casting bar dimensional requirement big on the one hand, the difficult control of ingot casting interior tissue quality.Machining is shaped the continuity of interior tissue streamline is destroyed on the other hand, and stock utilization is low.
Therefore, how a kind of forging method that can address the above problem is provided, becomes the problem that needs most solution at present.
Summary of the invention
In view of this, purpose of design of the present invention is, a kind of large aluminum alloy taper ring method for forging and molding is provided, and to reduce manufacturing cost, improves stock utilization, and guarantees that the interior tissue of taper ring can not be destroyed.
The embodiment of the invention is achieved in that
A kind of large aluminum alloy taper ring method for forging and molding comprises:
Ingot casting heating: big specification ingot casting is heated to suitable forging temperature;
Forge: on hydraulic press, said ingot casting repeatedly compressed with stretching and draw;
Upset into centrum: flat anvil and following flat anvil are with said ingot casting jumping-up repeatedly, so that said ingot casting formation centrum in the utilization;
Punching: adopt tapered punch on said centrum towards centre bore to form conical ring;
Machined: said conical ring is carried out machining and shaping handle, so that the gradient of the inner surface of said conical ring and outer surface is consistent;
Reaming: through saddle support plug is supported, utilize said plug to withstand the inner surface of said conical ring, utilize the said flat anvil of going up that the outer surface of said conical ring is suppressed, to enlarge the endoporus of said conical ring.
Preferably, in above-mentioned large aluminum alloy taper ring method for forging and molding, in the step of said forging, said ingot casting is carried out twice compression and stretches the operation of drawing.
Preferably, in above-mentioned large aluminum alloy taper ring method for forging and molding, in said step of upsetting into centrum, guarantee that the said temperature that goes up flat anvil is higher than the said temperature of flat anvil down.
Preferably, in above-mentioned large aluminum alloy taper ring method for forging and molding, specifically within 400-450 degree centigrade, following flat anvil is a room temperature to the temperature of said upward flat anvil.
Preferably, in above-mentioned large aluminum alloy taper ring method for forging and molding, before said step of upsetting into centrum, go up flat anvil and put the oil in the contacted surface of said ingot casting to said in advance.
Preferably, in above-mentioned large aluminum alloy taper ring method for forging and molding, behind each jumping-up, all need flat anvil on said and the contacted surface of said ingot casting are put the oil.
Compared with prior art, the technical scheme that provides of present embodiment has the following advantages and characteristics:
In scheme provided by the invention,, so that forging tissue, it becomes the forging tissue, so that its interior tissue can not be destroyed through ingot casting is forged; And, utilize existing little tonnage hydraulic press, small dimension raw material and simple free forging method, just can produce large aluminum alloy taper ring, so have the low advantage of cost with respect to prior art the present invention; And, in whole manufacturing process, do not waste any material, so stock utilization is high.Therefore, it is low that method provided by the invention has a cost, and stock utilization is high, and the interior tissue that can guarantee the taper ring such as can not be destroyed at advantage.
Description of drawings
In order to be illustrated more clearly in the present invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of large aluminum alloy taper ring method for forging and molding provided by the present invention;
Fig. 2 is the sketch map of centrum provided by the present invention;
Fig. 3 is the sketch map of punching provided by the present invention;
Fig. 4 is the sketch map after the machined provided by the present invention;
Fig. 5 is the sketch map of centrum reaming provided by the present invention.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention provides a kind of large aluminum alloy taper ring method for forging and molding, and mainly comprise: ingot casting heats, forges, upsets into centrum, punching, machined and reaming.It is low that above-mentioned large aluminum alloy taper ring method for forging and molding has a cost, and stock utilization is high, and the interior tissue that can guarantee the taper ring such as can not be destroyed at advantage.
Because there is multiple mode in the concrete realization of above-mentioned large aluminum alloy taper ring method for forging and molding, is elaborated through specific embodiment below:
Shown in Figure 1 is a kind of flow chart of large aluminum alloy taper ring method for forging and molding, and shown in Figure 2 is the centrum sketch map, shown in Figure 3 is the sketch map of punching, shown in Figure 4 is the sketch map after the machined, and Fig. 5 is the sketch map of centrum reaming.
See also Fig. 1 to shown in Figure 5, a kind of large aluminum alloy taper ring method for forging and molding may further comprise the steps:
Step S11, ingot casting heating: big specification ingot casting is heated to suitable forging temperature;
Step S12, forging: on hydraulic press, said ingot casting repeatedly compressed with stretching and draw;
Wherein, preferred scheme is for carrying out ingot casting twice compression and stretching the operation of drawing.
Step S13, upset into centrum 1: flat anvil 6 and following flat anvil are with said ingot casting jumping-up repeatedly, so that said ingot casting formation centrum 1 in the utilization;
Wherein, if in order to reach better effect, flat anvil 6 and following flat anvil are with said ingot casting repeatedly in the process of jumping-up on utilizing; Need to guarantee that the temperature that goes up flat anvil 6 will be higher than the temperature of flat anvil down; And the temperature that preferably makes flat anvil is in 400-450 degree centigrade of scope, and following flat anvil is a room temperature.In addition, in advance last flat anvil 6 is put the oil with the contacted surface of ingot casting, and behind each jumping-up, all need put the oil.In process, because the temperature of last flat anvil 6 is high, and goes up between flat anvil 6 and the ingot casting and put the oil, so frictional force is less relatively, so that the metal of ingot casting upper surface is fast to flowing velocity all around with the ingot casting jumping-up; Following flat anvil is lower with respect to last flat anvil temperature, and does not put the oil between following flat anvil and the ingot casting, so frictional force is relatively large; Thereby make the metal of ingot casting lower surface slow to flowing velocity all around; So, in the process to the ingot casting jumping-up repeatedly, can make ingot casting form centrum.
Step S14, punching: adopt tapered punch 2 on said centrum 1 towards centre bore to form conical ring 3;
Wherein, in the process of punching, the gradient of centrum 3 increases, and the material at center can be assembled towards periphery.
Step S15, machined: said conical ring 3 is carried out machining and shaping handle, so that the gradient of the inner surface of said conical ring 3 and outer surface is consistent;
Wherein, after the punching of step S14, the profile of conical ring 3 is not the taper of rule, so need machined that conical ring is carried out shaping, removes gross weight, and the inner surface of conical ring 3 and the gradient of outer surface are consistent.
Step S16, reaming: through saddle support 5 plug 4 is supported, utilize said plug 4 to withstand the inner surface of said conical ring 3, utilize the said outer surface of going up 6 pairs of said conical rings 3 of flat anvil to suppress, to enlarge the endoporus of said conical ring 3;
Wherein, adopt saddle support 5 and plug 4 to carry out reaming, when reaming, need adjust the spacing of two saddle supports 5, and the size of plug 4.The generatrix direction that also will guarantee conical ring 3 is parallel with plug 4 all the time, and conical ring 3 is ajusted, and controls each drafts, guarantees appearance and size and gradient.
To embodiment shown in Figure 5,, so that forging tissue, it becomes the forging tissue, at Fig. 1 so that its interior tissue can not be destroyed through ingot casting is forged; And, utilize existing little tonnage hydraulic press, small dimension raw material and simple free forging method, just can produce large aluminum alloy taper ring, so have the low advantage of cost with respect to prior art the present invention; And, in whole manufacturing process, do not waste any material, so stock utilization is high.Therefore, it is low that method provided by the invention has a cost, and stock utilization is high, and the interior tissue that can guarantee the taper ring such as can not be destroyed at advantage.
Need to prove that Fig. 1 is the preferred embodiment that the utility model is introduced to embodiment shown in Figure 5, those skilled in the art can design more embodiment on this basis fully, therefore do not give unnecessary details herein.
Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims (6)

1. a large aluminum alloy taper ring method for forging and molding is characterized in that, comprising:
Ingot casting heating: big specification ingot casting is heated to suitable forging temperature;
Forge: on hydraulic press, said ingot casting repeatedly compressed with stretching and draw;
Upset into centrum: flat anvil and following flat anvil are with said ingot casting jumping-up repeatedly, so that said ingot casting formation centrum in the utilization;
Punching: adopt tapered punch on said centrum towards centre bore to form conical ring;
Machined: said conical ring is carried out machining and shaping handle, so that the gradient of the inner surface of said conical ring and outer surface is consistent;
Reaming: through saddle support plug is supported, utilize said plug to withstand the inner surface of said conical ring, utilize the said flat anvil of going up that the outer surface of said conical ring is suppressed, to enlarge the endoporus of said conical ring.
2. large aluminum alloy taper ring method for forging and molding according to claim 1 is characterized in that, in the step of said forging, said ingot casting is carried out twice compression and stretches the operation of drawing.
3. large aluminum alloy taper ring method for forging and molding according to claim 1 is characterized in that, in said step of upsetting into centrum, guarantees that the said temperature that goes up flat anvil is higher than the said temperature of flat anvil down.
4. large aluminum alloy taper ring method for forging and molding according to claim 3 is characterized in that, specifically within 400-450 degree centigrade, following flat anvil is a room temperature to the temperature of said upward flat anvil.
5. large aluminum alloy taper ring method for forging and molding according to claim 4 is characterized in that, before said step of upsetting into centrum, goes up flat anvil and put the oil in the contacted surface of said ingot casting to said in advance.
6. large aluminum alloy taper ring method for forging and molding according to claim 5 is characterized in that, behind each jumping-up, all needs flat anvil on said and the contacted surface of said ingot casting are put the oil.
CN201110225949A 2011-08-08 2011-08-08 Forging molding method of large-scale aluminum alloy conical ring CN102319868A (en)

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447769A (en) * 2013-08-27 2013-12-18 贵州安大航空锻造有限责任公司 Preparing method of TC4 alloy large-scale special-shaped cross section annular blank
CN103447767A (en) * 2013-08-27 2013-12-18 贵州安大航空锻造有限责任公司 Preparing method of G10CrNi3Mo bearing steel large-scale special-shaped cross section annular blank
CN103447765A (en) * 2013-08-27 2013-12-18 贵州安大航空锻造有限责任公司 Preparing method of G20Cr2Ni4 bearing steel large-scale special-shaped cross section annular blank
CN103464987A (en) * 2013-09-26 2013-12-25 贵州航宇科技发展股份有限公司 Manufacturing method of TC4 titanium alloy ring for aero-engine outer duct
CN103522007A (en) * 2013-09-26 2014-01-22 贵州航宇科技发展股份有限公司 Method for manufacturing TC25 titanium alloy ring piece
CN104139143A (en) * 2014-08-11 2014-11-12 贵州航天新力铸锻有限责任公司 Method for forging forge piece with ellipsoidal shell
CN104191168A (en) * 2014-08-04 2014-12-10 贵州航宇科技发展股份有限公司 Large specially-shaped titanium alloy forging forming method
CN104191165A (en) * 2014-08-04 2014-12-10 贵州航宇科技发展股份有限公司 Method for forging and forming high temperature alloy large special-shaped ring
CN104259762A (en) * 2014-08-18 2015-01-07 贵州航宇科技发展股份有限公司 Forging and forming method for F22 flange ring pieces with non-uniform sections
CN104607580A (en) * 2015-01-23 2015-05-13 无锡市派克重型铸锻有限公司 Forging forming technology of aluminum alloy straight-flanked ring with extra-large specification
CN105171358A (en) * 2015-10-20 2015-12-23 张家港中环海陆特锻股份有限公司 Machining process of electric shovel lower roller channels
CN105689629A (en) * 2016-03-09 2016-06-22 无锡市派克重型铸锻有限公司 Free forging method of novel ultrahigh conical ring part
CN106141049A (en) * 2016-08-31 2016-11-23 无锡派克新材料科技股份有限公司 Small-bore steep-taper taper annular element forging and forming technology
CN107626864A (en) * 2017-08-21 2018-01-26 柳州科尔特锻造机械有限公司 The forging method of hollow forging
CN108213316A (en) * 2016-12-14 2018-06-29 贵州航宇科技发展股份有限公司 2219 aluminium alloy big-taper-angle taper shape ring forging manufacturing methods
CN109261866A (en) * 2018-11-19 2019-01-25 西南铝业(集团)有限责任公司 A kind of super-huge conical ring forging production technology of 7050 alloys

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Cited By (20)

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CN103447767B (en) * 2013-08-27 2016-03-30 贵州安大航空锻造有限责任公司 The preparation method of the large scale special-shaped section rings base of G10CrNi3Mo bearing steel
CN103447767A (en) * 2013-08-27 2013-12-18 贵州安大航空锻造有限责任公司 Preparing method of G10CrNi3Mo bearing steel large-scale special-shaped cross section annular blank
CN103447765A (en) * 2013-08-27 2013-12-18 贵州安大航空锻造有限责任公司 Preparing method of G20Cr2Ni4 bearing steel large-scale special-shaped cross section annular blank
CN103447769A (en) * 2013-08-27 2013-12-18 贵州安大航空锻造有限责任公司 Preparing method of TC4 alloy large-scale special-shaped cross section annular blank
CN103464987A (en) * 2013-09-26 2013-12-25 贵州航宇科技发展股份有限公司 Manufacturing method of TC4 titanium alloy ring for aero-engine outer duct
CN103522007A (en) * 2013-09-26 2014-01-22 贵州航宇科技发展股份有限公司 Method for manufacturing TC25 titanium alloy ring piece
CN104191168A (en) * 2014-08-04 2014-12-10 贵州航宇科技发展股份有限公司 Large specially-shaped titanium alloy forging forming method
CN104191165A (en) * 2014-08-04 2014-12-10 贵州航宇科技发展股份有限公司 Method for forging and forming high temperature alloy large special-shaped ring
CN104139143A (en) * 2014-08-11 2014-11-12 贵州航天新力铸锻有限责任公司 Method for forging forge piece with ellipsoidal shell
CN104139143B (en) * 2014-08-11 2016-02-24 贵州航天新力铸锻有限责任公司 Elliposoidal Shell Forging Parts forging method
CN104259762A (en) * 2014-08-18 2015-01-07 贵州航宇科技发展股份有限公司 Forging and forming method for F22 flange ring pieces with non-uniform sections
CN104607580A (en) * 2015-01-23 2015-05-13 无锡市派克重型铸锻有限公司 Forging forming technology of aluminum alloy straight-flanked ring with extra-large specification
CN105171358A (en) * 2015-10-20 2015-12-23 张家港中环海陆特锻股份有限公司 Machining process of electric shovel lower roller channels
CN105689629A (en) * 2016-03-09 2016-06-22 无锡市派克重型铸锻有限公司 Free forging method of novel ultrahigh conical ring part
CN106141049A (en) * 2016-08-31 2016-11-23 无锡派克新材料科技股份有限公司 Small-bore steep-taper taper annular element forging and forming technology
CN106141049B (en) * 2016-08-31 2018-06-08 无锡派克新材料科技股份有限公司 Small-bore steep-taper taper annular element forging and forming technology
CN108213316A (en) * 2016-12-14 2018-06-29 贵州航宇科技发展股份有限公司 2219 aluminium alloy big-taper-angle taper shape ring forging manufacturing methods
CN108213316B (en) * 2016-12-14 2020-04-28 贵州航宇科技发展股份有限公司 2219 aluminum alloy large-cone-shaped pyramid annular forging manufacturing method
CN107626864A (en) * 2017-08-21 2018-01-26 柳州科尔特锻造机械有限公司 The forging method of hollow forging
CN109261866A (en) * 2018-11-19 2019-01-25 西南铝业(集团)有限责任公司 A kind of super-huge conical ring forging production technology of 7050 alloys

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Application publication date: 20120118