CN104815936A - Forge forming method and special mold for fork type pieces such as high reinforcing bars and thin web plates - Google Patents
Forge forming method and special mold for fork type pieces such as high reinforcing bars and thin web plates Download PDFInfo
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- CN104815936A CN104815936A CN201510197867.5A CN201510197867A CN104815936A CN 104815936 A CN104815936 A CN 104815936A CN 201510197867 A CN201510197867 A CN 201510197867A CN 104815936 A CN104815936 A CN 104815936A
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Abstract
The invention provides a forge forming method for fork type pieces such as high reinforcing bars and thin web plates, wherein a forging mold is provided with a pre-forging cavity and a final-forging cavity, and an upsetting mold block is cooperatively arranged beside the forging mold. The method comprises the following forging procedures: heating, upsetting, pre-forging, final forging, trimming, and cooling. The method comprises only one heating procedure, and only one forging device is required, thereby saving the blank preparing procedure and the polishing procedure after preparing the blank, accordingly increasing the working efficiency.
Description
Technical field
The present invention relates to forging molding technical field, particularly relate to the Y-piece forming method with high rib, thin web plate and fork configuration feature, and the particular manufacturing craft used in the method.
Background technology
There is high rib, the forging of thin web plate architectural feature is the difficult point of domestic and international forging industry always because shaping difficulty is large and easily produce the reasons such as fold defect and assaults fortified position a little, and the EMD supporting seat that our company produces has high rib, thin web plate architectural feature and fork configuration feature simultaneously, Design and manufacture difficulty is larger.Domestic forging producer generally adopts single-cavity forging mold when this series products of Design and manufacture, and it specifically forges work step and is: heating → open die forging base → melt down heating → base two fire → cooling → polishing row wound → heating → die forging → trimming → cooling.But there is following problem in this technique:
1. operation is extremely complicated, and labour intensity is large, and production efficiency is very low;
2. add showing tremendous enthusiasm time many and operation is many, manufacturing cost is very high;
3. many fire add that thermogenetic oxide skin is residual causes the non-constant of forging surface quality;
4. the dimensional uniformity of waste shape is difficult to ensure, the incomplete phenomenon of filling may appear in indivedual forging;
5. waste base deformation extent in die cavity is large and distortion is violent, and the service life of forging mold is lower;
6. forging is not easily beaten and is leaned on, and burr bridge portion is thicker, and the physical life of edger is lower.
Summary of the invention
The object of the invention is: a kind of method for forging and molding is provided, with improve have high rib, thin web plate architectural feature Y-piece production efficiency and improve die life, reduce forging manufacturing cost and also improve its surface quality.
Another object of the present invention is; There is provided a kind of shaping particular manufacturing craft of Y-piece with high rib, thin web plate and fork configuration feature, this mould ensure that the uniformity of waste base at blocking die cavity, can reduce the deformation extent of waste base during finish-forging.
Technical scheme of the present invention: a kind of high rib, thin web plate class Y-piece method for forging and molding, it is characterized in that, forging mold devises blocking die cavity and finish-forging die cavity, forging mold is other is furnished with the thick swage block of Upsetting, and forging work step is: heating → Upsetting slightly → blocking → finish-forging → trimming → cooling.
The forging mold that said method uses, it is characterized in that, comparatively Rouno Cormer Pregrinding Wheel is all made at the recessed fillet of blocking die cavity and dome angle, inside blocking die cavity fork, draft angle is designed to the large number of degrees, middle gross weight makes wedged bottom gross weight, and blocking die cavity makes Local Damping platform, and blocking die cavity makes burr groove.
Comparatively Rouno Cormer Pregrinding Wheel is all made at the recessed fillet of blocking die cavity and dome angle, and being beneficial to metal can filling smoothly.
Inside blocking die cavity fork, draft angle is designed to the large number of degrees, and middle gross weight makes wedged bottom gross weight, to realize the effect of splitting material and sub-material.
Blocking die cavity makes Local Damping platform to avoid too much metal flow to pre-forging stock head side, thus it is shaping to be conducive to pre-forging stock.
Blocking die cavity makes burr groove, preferably makes 15mm heavy flash groove to store excess metal, is convenient to beat lean on, and is also conducive to the bridge portion thickness reducing finish-forging part.
Forging mold is other is furnished with the thick swage block of Upsetting, so that the oxide skin produced when removing bar heating before die forging.
Finish-forging die cavity is provided with Double Tops rod aperture, to realize the balance of ejecting force.
Advantage of the present invention:
1. only have one add showing tremendous enthusiasm time and only need a forging equipment in operation, thus reduce electric cost;
2. to polish after eliminating base and base in operation operation, thus reduce labour intensity and the cost of labor of workman;
3. in operation, bar only heats once and through the thick descale of Upsetting before die forging, thus improves the surface quality of forging;
4. the blocking die cavity in operation ensure that the uniformity of waste base, thus ensure that the filling quality of batch production;
5. the deformation extent of waste base when the blocking work step in operation reduces finish-forging, thus improve the mold use life-span.
Accompanying drawing explanation
Fig. 1 is mold cavity arrangement schematic diagram.
In Fig. 1,1 is finish-forging die cavity jaw, and 2 is finish-forging die cavity storehouse portion, and 3 is finish-forging die cavity bridge portion, 4 is finish-forging die cavity, and 5 is finish-forging die cavity jogger hole, and 6 is blocking die cavity damping platform, and 7 is blocking die cavity jogger hole, 8 is blocking die cavity storehouse portion, and 9 is blocking die cavity, and 10 is blocking die cavity jaw.
Fig. 2 is blocking die cavity hot forging schematic diagram.
Fig. 3 is finish-forging die cavity hot forging schematic diagram.
Detailed description of the invention
The present invention is to forge EMD supporting seat, and method for forging and molding needs the equipment used to have: gas furnace, 8000T electric screw press, 2000T punch press; The mould used is needed to have: the thick swage block of Upsetting, forging mold, shaving die.
The concrete forging work step of this supporting seat is:
1) heat.Inserted in gas furnace by bar and heat, heating-up temperature is 1160 DEG C ~ 1200 DEG C;
2) Upsetting is thick.Bar after heating is vertically placed on the thick swage block of Upsetting, uses less force de frappe to hit a hammer with the oxide skin removing bar side;
3) blocking.Bar after light Upsetting is inserted in blocking die cavity, uses large force de frappe bang number hammer, beat and utilize push rod that pre-forging is ejected blocking die cavity rearward;
4) finish-forging.Pre-forging stock is inserted in finish-forging die cavity, uses large force de frappe bang number hammer, beat and utilize double-pole that finish-forging part is ejected finish-forging die cavity rearward;
5) trimming.Finish-forging part is put on trim die and carry out trimming, trimming temperature >=850 DEG C;
6) cool.
The design feature of forging mold is: comparatively Rouno Cormer Pregrinding Wheel is all made at the recessed fillet of blocking die cavity and dome angle, is beneficial to the filling smoothly of metal energy; Inside blocking die cavity fork, draft angle is designed to the large number of degrees, and middle gross weight makes wedged bottom gross weight, to realize the effect of splitting material and sub-material; Blocking die cavity makes Local Damping platform to avoid too much metal flow to pre-forging stock head side, thus it is shaping to be conducive to pre-forging stock; Blocking die cavity makes 15mm heavy flash groove to store excess metal, is convenient to beat lean on, and is also conducive to the bridge portion thickness reducing finish-forging part; Forging mold is other is furnished with the thick swage block of Upsetting, so that the oxide skin produced when removing bar heating before die forging; Finish-forging die cavity is provided with Double Tops rod aperture, to realize the balance of ejecting force.
Claims (4)
1. high rib, a thin web plate class Y-piece method for forging and molding, is characterized in that, forging mold devises blocking die cavity and finish-forging die cavity, and forging mold is other is furnished with the thick swage block of Upsetting, and forging work step is: heating → Upsetting slightly → blocking → finish-forging → trimming → cooling.
2. the forging mold of method use according to claim 1, it is characterized in that, comparatively Rouno Cormer Pregrinding Wheel is all made at the recessed fillet of blocking die cavity and dome angle, inside blocking die cavity fork, draft angle is designed to the large number of degrees, middle gross weight makes wedged bottom gross weight, blocking die cavity makes Local Damping platform, and blocking die cavity makes burr groove.
3. forging mold as claimed in claim 2, it is characterized in that, the thickness that blocking die cavity makes burr groove is 15mm.
4. forging mold as claimed in claim 2 or claim 3, it is characterized in that, finish-forging die cavity is provided with Double Tops rod aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510197867.5A CN104815936A (en) | 2015-04-24 | 2015-04-24 | Forge forming method and special mold for fork type pieces such as high reinforcing bars and thin web plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510197867.5A CN104815936A (en) | 2015-04-24 | 2015-04-24 | Forge forming method and special mold for fork type pieces such as high reinforcing bars and thin web plates |
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| CN104815936A true CN104815936A (en) | 2015-08-05 |
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| CN201510197867.5A Pending CN104815936A (en) | 2015-04-24 | 2015-04-24 | Forge forming method and special mold for fork type pieces such as high reinforcing bars and thin web plates |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807281A (en) * | 2018-12-21 | 2019-05-28 | 株洲中车天力锻业有限公司 | A kind of K3 brake beam end forging technology |
| CN110000324A (en) * | 2019-04-12 | 2019-07-12 | 哈尔滨工业大学 | A kind of radial rib shell forging isothermal die forging process forming control method |
| CN112775372A (en) * | 2020-12-18 | 2021-05-11 | 陕西宏远航空锻造有限责任公司 | Hot-working forging design method for ultra-high strength steel AerMet100 |
| CN114160733A (en) * | 2021-12-15 | 2022-03-11 | 陕西宏远航空锻造有限责任公司 | Forming method of Y-shaped aluminum alloy die forging with narrow high platforms on two sides of two ends |
| CN114700455A (en) * | 2022-04-20 | 2022-07-05 | 无锡派克新材料科技股份有限公司 | Die forging die for fork joint forge piece and die forging method thereof |
| CN114799004A (en) * | 2022-04-28 | 2022-07-29 | 中国第二重型机械集团德阳万航模锻有限责任公司 | Forming method of thin web forging |
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| JP2009274135A (en) * | 2008-04-16 | 2009-11-26 | Washi Kosan Co Ltd | Forged wheel made of light alloy and method for producing the same |
| CN101323080A (en) * | 2008-07-03 | 2008-12-17 | 庄龙兴 | Red edge-cutting and hole-punching manufacture technology of automobile generator finish forging claw pole |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109807281A (en) * | 2018-12-21 | 2019-05-28 | 株洲中车天力锻业有限公司 | A kind of K3 brake beam end forging technology |
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| CN110000324A (en) * | 2019-04-12 | 2019-07-12 | 哈尔滨工业大学 | A kind of radial rib shell forging isothermal die forging process forming control method |
| CN110000324B (en) * | 2019-04-12 | 2020-05-19 | 哈尔滨工业大学 | Isothermal die forging forming control method for radial rib shell forge piece |
| CN112775372A (en) * | 2020-12-18 | 2021-05-11 | 陕西宏远航空锻造有限责任公司 | Hot-working forging design method for ultra-high strength steel AerMet100 |
| CN114160733A (en) * | 2021-12-15 | 2022-03-11 | 陕西宏远航空锻造有限责任公司 | Forming method of Y-shaped aluminum alloy die forging with narrow high platforms on two sides of two ends |
| CN114160733B (en) * | 2021-12-15 | 2024-05-24 | 陕西宏远航空锻造有限责任公司 | Forming method of Y-shaped aluminum alloy die forging with narrow and high platforms at two sides of two ends |
| CN114700455A (en) * | 2022-04-20 | 2022-07-05 | 无锡派克新材料科技股份有限公司 | Die forging die for fork joint forge piece and die forging method thereof |
| CN114799004A (en) * | 2022-04-28 | 2022-07-29 | 中国第二重型机械集团德阳万航模锻有限责任公司 | Forming method of thin web forging |
| CN114799004B (en) * | 2022-04-28 | 2023-12-22 | 中国第二重型机械集团德阳万航模锻有限责任公司 | Forming method of thin web forging |
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Application publication date: 20150805 |