CN102601594B - Forge forming process for shaking seat of bogie and shaking seat in forge forming - Google Patents
Forge forming process for shaking seat of bogie and shaking seat in forge forming Download PDFInfo
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- CN102601594B CN102601594B CN201210094606.7A CN201210094606A CN102601594B CN 102601594 B CN102601594 B CN 102601594B CN 201210094606 A CN201210094606 A CN 201210094606A CN 102601594 B CN102601594 B CN 102601594B
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Abstract
The invention provides forge forming process for a shaking seat of a bogie and the shaking seat in forge forming. The novel forge molding process for the shaking seat includes forge molding of high-quality alloy steel, the shaking seat in forge forming comprises a spring support plate and a lower support seat, the lower support seat of the shaking seat is mounted below the spring support plate, a bump is disposed on a carrying tabletop of the spring support plate, the lower support seat 3 is an annular support consisting of four support legs, and the spring support plate and the lower support seat are made of 25MnCrNiMoA rolled round steel by means of forging. Production efficiency of the shaking seat can be obviously improved by the aid of the forge molding process, and the produced shaking seat for the bogie is applicable to meeting requirements of running of a high-speed railway vehicle.
Description
Technical field
The present invention relates to a kind of processing method and product of railway product, especially relate to the seat that shakes that shakes a forging molding process and forging molding for a kind of bogies for railway vehicles.
Background technology
Shaking seat is a vitals in bogies for railway vehicles, be arranged between the spring load plate of bogie of car bogie side frame and bearing spring, and be a main stressed member, so requirement is on the make quite high.Bogies for railway vehicles is that seat is shaken in the casting of E level steel with shaking seat at present, it is all by cast steel casting out that seat is shaken in this casting, by heat treatment, carry out annealing in process again, also needing to carry out harmless visiting of magnetic checks, see if there is casting flaw, so comparison trouble, and qualification rate is not high.
Along with completing of railway construction in China heavy duty speed-raising, cast steel shakes seat because of casting factor, defects such as cannot avoiding having pore, shrinkage porosite, be mingled with, crackle, service life are short, and the existence of these defects forms potential potential safety hazard to rolling stock heavy duty high-speed cruising.Therefore need badly further, bogie is used and shaken the manufacture method of seat and bogie is improved with shaking seat.
Through domestic patent retrieval, do not find that there is separately for the patent application of shaking seat in bogies for railway vehicles.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, propose a kind of production efficiency of shaking seat that can obviously improve and overcome above-mentioned deficiency simultaneously, be applicable to a kind of bogie that high-speed railway vehicle operation needs with shaking a forging molding process and a kind of bogie with shaking seat.
The present invention solves the problems of the technologies described above adopted technical scheme to be: a kind of bogie, with shaking a forging molding process, adopts and forges manufacture craft making bogie with shaking seat; Comprise (1) the selection of material: forge and to shake seat and will select superior alloy steel steel billet, described superior alloy steel steel billet will be with the E level cast steel material intensity of current use quite or higher than E level cast steel material;
(2) accurately calculate material and blanking: according to heat forging drawing, accurately calculate material heavy, avoid die cavity to be not fully filled or beat unreal;
(3) base: forge on hammer anvil with 1-3T flat-die hammer after the round base after blanking is heated to 950-1150 ℃, make circle base preliminary deformation, obtain rectangle blank; Owing to shaking Zuo Liangge ear head, account for material more, therefore, after employing gas cutting ear, again press again shoulder;
(4) finish-forging: forge with 6500-9000T friction press putting into forging mold after blank heating, hit 2-3 shapings, the design of forging mold will be conducive to metal flow, and die cavity can be full of, and does not produce Fold;
(5) trimming: cut overlap on forging with 800-1200T friction press;
(6) normalizing: as conditioning treatment, crystal grain thinning, eliminates stress, for final heat treatment provides suitable structural state;
(7) ball blast: remove forging surface scale with special equipment;
(8) flaw detection: check whether forging exists crackle or bark pocket;
(9) shaping: smooth on hydraulic press with shaping mould and special tooling.
(10) machining: cause surplus to carry out machine to the local He Liang ear pattern draft of drawing requirement processing and add;
(11) polishing.
As a further improvement on the present invention, after described step 10 polishing, also carried out following steps:
(12) heat treatment: forging is heat-treated to the comprehensive mechanical performance of giving full play to steel alloy with the special specification of heat treatment of formulating;
(13) ball blast: surface peening improves the fatigue strength that shakes seat;
(14) flaw detection.
As a further improvement on the present invention, the superior alloy steel steel billet described in preferred step 1 is selected 25MnCrNiMoA milling round steel or 35CrMo;
As a further improvement on the present invention, preferably the normalizing temperature described in step 6 is 930 ℃, and temperature retention time 3-4 hour, comes out of the stove and carry out air cooling.
It is a kind of according to the seat that shakes of above-mentioned manufacturing process forging molding that the present invention also provides, this shakes seat by superior alloy steel forging molding, comprise spring planet and lower support seat, described in shake seat lower support seat be arranged on spring planet below, on described spring planet cushion cap face, be provided with prominent navel.
As a further improvement on the present invention, preferred described lower support seat is annular ledge, and described annular ledge comprises four feets.
As a further improvement on the present invention, described forging molding what shake that seat adopts is that 25MnCrNiMoA milling round steel or 35CrMo forge and form.
In sum, a kind of bogie of the present invention with shake a Forging Technology and a kind of forging molding shake that seat is avoided having pore, shrinkage porosite, is mingled with, the defect such as crackle, service life are short and obviously improve the production efficiency of shaking seat.
Accompanying drawing explanation
Fig. 1 is process chart;
Fig. 2 is blanking figure of the present invention;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is base figure of the present invention;
Fig. 5 is that bogie is with shaking a front view;
Fig. 6 is the side view of Fig. 5.
The specific embodiment
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
As shown in Figure 1, the present embodiment proposes bogie with shaking a forging molding process, adopts and forges manufacture craft making bogie with shaking seat; Comprise the following steps:
(1) the selection of material: forge and to shake seat and will select superior alloy steel steel billet, described superior alloy steel steel billet will, with the E level cast steel material intensity of current use quite or higher than E level cast steel material, be selected 35CrMo or 25MnCrNiMoA;
(2) accurately calculate material and blanking: according to die cavity, accurately calculate material heavy, avoid die cavity to be not fully filled or do not lean on;
(3) base: forge on hammer anvil with 1-3T flat-die hammer after the round base after blanking is heated to 950-1150 ℃, make circle base preliminary deformation (as shown in Figures 2 and 3), obtain rectangle blank; Owing to shaking Zuo Liangge ear head, account for material more, therefore, adopt gas cutting ear after (as shown in Figure 4) again press again shoulder;
(4) finish-forging: forge with 6500-9000T friction press putting into forging mold after blank heating, hit 2-3 shapings, the design of forging mold will be conducive to metal flow, and die cavity can be full of, and does not produce Fold;
(5) trimming: cut overlap on forging with 800-1200T friction press;
(6) normalizing: as conditioning treatment, crystal grain thinning, eliminates stress, for final heat treatment provides suitable structural state;
(7) ball blast: remove forging surface scale with special equipment;
(8) flaw detection: check whether forging exists crackle or bark pocket;
(9) shaping: smooth on hydraulic press with shaping mould and special tooling.
(10) machining: the local He Liang ear pattern draft to drawing requirement processing causes surplus to carry out machined;
(11) polishing;
(12) heat treatment: forging is heat-treated to the comprehensive mechanical performance of giving full play to steel alloy with the special specification of heat treatment of formulating;
(13) ball blast: surface peening improves the fatigue strength that shakes seat;
(14) flaw detection.
As further improvement of this embodiment, preferably the superior alloy steel steel billet described in step 1 is selected 25MnCrNiMoA milling round steel;
As further improvement of this embodiment, preferably the normalizing temperature described in step 6 is 930 ℃, and temperature retention time 3-4 hour, comes out of the stove and carry out air cooling.
As shown in accompanying drawing 5 and 6, the present embodiment also provides a kind of seat that shakes of forging molding, this shakes seat for solid forging moulding, spring planet 1 and lower support seat 3 by superior alloy steel forging molding, the described lower support seat 3 that shakes seat is arranged on spring planet 1 below, is provided with prominent navel 2 on described spring planet 1 cushion cap face; Preferred described lower support seat 3 is annular ledge, and described annular ledge comprises four feets 4; What described spring planet 1 and lower support seat 3 adopted is that the forging of 25MnCrNiMoA milling round steel forms.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. bogie, with shaking a forging molding process, is characterized in that, adopts and forges manufacture craft making bogie with shaking seat; Comprise the steps:
(1) select new material: forge and to shake seat and will select superior alloy steel steel billet, described superior alloy steel steel billet will be with the E level cast steel material intensity of current use quite or higher than E level cast steel material;
(2) accurately calculate material and blanking: according to heat forging drawing, accurately calculate material heavy, avoid die cavity to be not fully filled or beat unreal;
(3) base: forge on hammer anvil with 1-3T flat-die hammer after the round base after blanking is heated to 950-1150 ℃, make circle base preliminary deformation, obtain rectangle blank; Owing to shaking Zuo Liangge ear head, account for material more, therefore, after employing gas cutting ear, again press again shoulder;
(4) finish-forging: forge with 6500-9000T friction press putting into forging mold after blank heating, hit 2-3 shapings; The design of forging mold will be conducive to metal flow, and die cavity can be full of, and does not produce Fold;
(5) trimming: cut overlap on forging with 800-1200T friction press;
(6) normalizing: as conditioning treatment, crystal grain thinning, eliminates stress, for final heat treatment provides suitable structural state;
(7) ball blast: remove forging surface scale with special equipment;
(8) flaw detection: check whether forging exists crackle or bark pocket;
(9) shaping: smooth on hydraulic press with shaping mould and special tooling;
(10) machining: cause surplus to carry out machine to the local He Liang ear pattern draft of drawing requirement processing and add;
(11) polishing.
2. bogie as claimed in claim 1, with shaking a forging molding process, is characterized in that, has also carried out following steps after described step 11 polishing:
(12) heat treatment: forging is heat-treated to the comprehensive mechanical performance of giving full play to steel alloy with the special specification of heat treatment of formulating;
(13) ball blast: surface peening improves the fatigue strength that shakes seat;
(14) flaw detection.
3. bogie as claimed in claim 1, with shaking a forging molding process, is characterized in that, the superior alloy steel steel billet described in step 1 is selected 25MnCrNiMoA milling round steel or 35CrMo.
4. bogie as claimed in claim 1, with shaking a forging molding process, is characterized in that, 930 ℃ of the normalizing temperatures described in step 6, and temperature retention time 3-4 hour, comes out of the stove and carries out air cooling.
5. a kind of forging molding as described in claim as arbitrary in claim 1-4 shakes seat, described in it is characterized in that, shake seat by superior alloy steel forging molding, comprise spring planet and lower support seat, the described lower support seat that shakes seat is arranged on spring planet below, on described spring planet cushion cap face, is provided with prominent navel.
A kind of forging molding as claimed in claim 5 shake seat, it is characterized in that, described lower support seat is annular ledge, described annular ledge comprises four feets.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210094606.7A CN102601594B (en) | 2012-04-01 | 2012-04-01 | Forge forming process for shaking seat of bogie and shaking seat in forge forming |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210094606.7A CN102601594B (en) | 2012-04-01 | 2012-04-01 | Forge forming process for shaking seat of bogie and shaking seat in forge forming |
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| Publication Number | Publication Date |
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| CN102601594A CN102601594A (en) | 2012-07-25 |
| CN102601594B true CN102601594B (en) | 2014-04-16 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103551480B (en) * | 2013-10-19 | 2016-01-13 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of finish forge mould for mount pad forging and finish forge method |
| CN107716819A (en) * | 2016-08-11 | 2018-02-23 | 象山迪凯机模有限公司 | A kind of magnetic suspension train aluminium alloy trailing arm and bolster processing technology |
| CN113305515B (en) * | 2021-06-11 | 2022-03-25 | 嘉兴博朗金属科技有限公司 | Casting method of stainless steel watchcase with patterns |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614045A (en) * | 1979-07-17 | 1981-02-10 | Japan Steel Works Ltd:The | Production of forging |
| SU1745590A1 (en) * | 1989-09-18 | 1992-07-07 | Производственное объединение "Уралвагонзавод" им.Ф.Э.Дзержинского | Drop forged-and-welded overspring beam of freight car bogie |
| CN1173850C (en) * | 2001-08-30 | 2004-11-03 | 中国南车集团株洲车辆厂 | Suspension swing type bogie of axle box for railway vehicle |
| CN2513855Y (en) * | 2001-12-30 | 2002-10-02 | 齐齐哈尔铁路车辆(集团)有限责任公司 | Swinging type goods train bogie |
| CN100462162C (en) * | 2007-04-19 | 2009-02-18 | 南车眉山车辆有限公司 | Process of making integral swing bolster-side frame core of freight wagon |
| SK5196Y1 (en) * | 2008-08-21 | 2009-06-05 | Tatravagonka As | Two-axle bogies for rail vehicle with radial settings coupled wheels by cross member |
| CN201604654U (en) * | 2009-10-30 | 2010-10-13 | 南车长江车辆有限公司 | Connection structure for bolster and central plate of railway wagon bogie |
| CN102090783A (en) * | 2010-11-19 | 2011-06-15 | 邓旭升 | Thin-wall metal support leg and production method thereof |
| CN102039908A (en) * | 2010-12-21 | 2011-05-04 | 南车长江车辆有限公司 | Swing device for swing bogie of rail wagon |
| CN202016474U (en) * | 2010-12-21 | 2011-10-26 | 南车长江车辆有限公司 | Swinging device of swing type rail wagon bogie |
| CN201941798U (en) * | 2010-12-23 | 2011-08-24 | 南车长江车辆有限公司 | Swinging bogie of railway vehicle |
| CN102172753A (en) * | 2010-12-31 | 2011-09-07 | 南车四方车辆有限公司 | Method for forging concave components |
| CN201980245U (en) * | 2011-01-30 | 2011-09-21 | 上海磁浮交通发展有限公司 | Swing bolster part for magnetic suspension vehicle |
| CN102319992B (en) * | 2011-10-13 | 2013-04-24 | 西南铝业（集团）有限责任公司 | Method for manufacturing aluminum alloy die forging |
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