CN105728607A - Billet for forming large-sized double-lug U-shaped forged piece - Google Patents
Billet for forming large-sized double-lug U-shaped forged piece Download PDFInfo
- Publication number
- CN105728607A CN105728607A CN201610243543.5A CN201610243543A CN105728607A CN 105728607 A CN105728607 A CN 105728607A CN 201610243543 A CN201610243543 A CN 201610243543A CN 105728607 A CN105728607 A CN 105728607A
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- China
- Prior art keywords
- blank
- billet
- rectangular preiection
- triangular hill
- lug
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Classifications
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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
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention relates to a billet for forming a large-sized double-lug U-shaped forged piece. The billet is a strip-shaped billet of which the middle is provided with two triangular bumps distributed at intervals and each of two ends is provided with one rectangular bump; the triangular bumps and the rectangular bumps are positioned at the same side of the billet; and the distances between the triangular bumps and the rectangular bumps adjacent to the triangular bumps are equal. According to the billet for forming the large-sized double-lug U-shaped forged piece, disclosed by the invention, the size of the billet is closer to that of a final product, the working time of machining can be effectively shortened, the deformation resistance in the bending and forming process of a plate billet is reduced, and the requirement on the tonnage of a molding hydraulic press is reduced. Therefore, a bending and forming technique of the large-sized double-lug U-shaped forged piece, related to the billet disclosed by the invention, has a wider application space.
Description
Technical field
The present invention relates to the blank of a kind of large-scale ears U-shaped forging molding, belong to technical field of forging.
Background technology
International Thermal-Nuclear Experimental Reactor (is called for short ITER), and plan is the International Thermal-Nuclear Experimental Reactor being participated in build by European Union, China, the U.S., Russia, Japan, Korea S and India seven side in 2005, purpose is to develop controllable nuclear fusion technology, and finally provides new forms of energy unlimited, cleaning, safety for the mankind.This project relates to a kind of large-scale ears U-shaped forging (as shown in Figure 1), this part adopts 316LN austenitic stainless steel material forging to form, owing to 316LN material belongs to austenite structure, changing without ppolymorphism, grain size cannot be improved by heat treatment, therefore, only ensured the grain size of forging by controlled forge process technique, again owing to this part shape is irregular, 316LN material deformation temperature range is narrow, the reasons such as material resistance of deformation is big, are difficult to direct forging molding.
Applicant was in a kind of thermonuclear fusion heap ears U-shaped forging forging method disclosed in the application for a patent for invention that application number is 2014104241045 in 2014, utilize the method can produce the large-scale ears U-shaped forging meeting thermonuclear fusion experimental reactor requirement, but the method yet suffers from some problems.Therefore, have developed the brake forming technology of a kind of new large-scale ears U-shaped forging, it is possible to be effectively improved the uniformity that product is overall, reduce machining man-hour, shorten the production cycle, reduce production cost.A link crucial in brake forming technology is the design of the blank of molding, conventional plate bending molding is adopted to there is the problems such as waste of material, bending drag is big, later stage machining length in man-hour, manufacturing cost are high, it is impossible to embody the advantage of brake forming technology.
Summary of the invention
For above-mentioned weak point of the prior art, it is desirable to provide a kind of can effectively reduce machining man-hour, reduce the blank of the large-scale ears U-shaped forging molding bending drag in brake forming process.
For solving above-mentioned technical problem, the technical scheme is that the blank of large-scale ears U-shaped forging molding, described blank is that middle part is with the strip blank that two is that triangular hill spaced apart and two ends are respectively provided with a rectangular preiection, described triangular hill and rectangular preiection are positioned at the same side of blank, and described triangular hill is equal to the distance of the rectangular preiection being adjacent.
Process two arc grooves in the side that described blank is relative with side, triangular hill place, described arc groove position and triangular hill position are on same axis of symmetry.
Described blank is produced by following method: by Heating Steel Ingots to 1150～1180 DEG C, pull out operation by jumping-up and produce one flat plate, one side at flat board utilizes narrow anvil to pull out, two ends must be arrived and be respectively provided with the first rectangular preiection and middle part with two blank blanks in the second rectangular preiection spaced apart, blank blank is put in pond and cools down, when blank slab temperature is down to below 100 DEG C, hang out from pond, the surplus removing the first rectangular preiection through machining obtains rectangular preiection, the surplus removing the second rectangular preiection obtains triangular hill, thus obtaining blank.
Due to the fact that the above technical scheme of employing, it has the advantage that 1, the blank of large-scale ears U-shaped forging molding involved in the present invention, its size is more nearly final finished size, can effectively reduce the man-hour of machining, reduce the resistance of deformation in plate bending molding, reducing requirement to forming hydraulic press tonnage, therefore, the brake forming technology of large-scale ears U-shaped forging related to the present invention has and is more widely applied space.2, the present invention is maximum according to the thickness at large-scale ears U-shaped forging bottom roundings place and the feature of certain elongation is arranged in BENDING PROCESS at bottom, when designing blank, blank bottom lengths is reduced.3, the present invention is directed to large-scale ears U-shaped forging fillet place thickness problem, according to crooked route, be provided with triangular hill in bottom as compensation, blank is after completing certain angle of bend, and protruding compensation part becomes the fillet of bottom.4, the side that the present invention is relative with protruding side, place on blank processes two arc grooves, each arc groove is protruding with one corresponding, the design of groove both can solve crooked position and be prone to the problem that generating material is assembled, and also made the bending of blank be easier to make for.
Accompanying drawing explanation
Fig. 1 is the structural representation of the large-scale ears U-shaped forging of the present invention；
Fig. 2 is the structural representation of blank of the present invention；
Fig. 3 is the structural representation of flat board of the present invention；
Fig. 4 is the structural representation of blank blank of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
As shown in Figure 2, the present invention proposes the blank 1 of a kind of large-scale ears U-shaped forging molding, this blank 1 is that middle part is with the strip blank 1 that two is that triangular hill 2 spaced apart and two ends are respectively provided with a rectangular preiection 3, wherein, two triangle protruding 2 and two rectangular preiections 3 are positioned at the same side of blank 1, further, each triangular hill 2 is equal to the distance of the rectangular preiection 3 being adjacent.
Further, side relative with side, triangular hill 2 place on blank 1 processes two arc grooves, and arc groove position and triangular hill 2 position are on same axis of symmetry.
Blank 1 of the present invention is produced by following process: by Heating Steel Ingots to 1150～1180 DEG C, pull out operation by jumping-up and produce one flat plate 4 (as shown in Figure 3), one side at flat board 4 utilizes narrow anvil to pull out, two ends must be arrived and be respectively provided with the first rectangular preiection 5 and middle part with two blank blanks 7 (as shown in Figure 4) in the second rectangular preiection 6 spaced apart, blank blank 7 is put in pond and cools down, when blank blank 7 temperature is down to below 100 DEG C, hang out from pond, through machining, (surplus removing the first rectangular preiection 5 obtains rectangular preiection 3, and the surplus removing the second rectangular preiection 6 obtains triangular hill 2) obtain blank 1 (as shown in Figure 2).Blank 1 is carried out ultrasonic examination, after qualified, carries out follow-up brake forming.In bending operation, two triangular hills 2 on blank 1 can play the effect of compensation, and after brake forming, two triangular hills 2 become the fillet bottom large-scale ears U-shaped forging 8.In addition, it is contemplated that after blank 1 bending, the position of bending can exist the situation that material is assembled, therefore, take out excess metal at blank 1 crooked position in advance and form groove, both can solve the problem that material is assembled, and also make the bending of blank 1 be easier to make for.
Claims (3)
1. the blank of one kind large-scale ears U-shaped forging molding, it is characterized in that: described blank (1) is respectively provided with the strip blank (1) of a rectangular preiection (3) for middle part with two in triangular hill (2) spaced apart and two ends, described triangular hill (2) and rectangular preiection (3) are positioned at the same side of blank (1), and described triangular hill (2) is equal to the distance of the rectangular preiection (3) being adjacent.
2. the blank of large-scale ears U-shaped forging molding as claimed in claim 1, it is characterized in that: process two arc grooves in the side that described blank (1) is relative with triangular hill (2) side, place, described arc groove position and triangular hill (2) position are on same axis of symmetry.
null3. the blank of large-scale ears U-shaped forging molding as claimed in claim 1，It is characterized in that: described blank (1) is produced by following method 1: by Heating Steel Ingots to 1150～1180 DEG C，Pull out operation by jumping-up and produce one flat plate (4)，One side at flat board (4) utilizes narrow anvil to pull out，Two ends must be arrived and be respectively provided with the first rectangular preiection (5) and middle part with two blank blanks (7) in the second rectangular preiection (6) spaced apart，Blank blank (7) is put in pond and cools down，When blank blank (7) temperature is down to below 100 DEG C，Hang out from pond，The surplus removing the first rectangular preiection (5) through machining obtains rectangular preiection (3)、The surplus removing the second rectangular preiection (6) obtains triangular hill (2)，Thus obtaining blank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610243543.5A CN105728607A (en) | 2016-04-19 | 2016-04-19 | Billet for forming large-sized double-lug U-shaped forged piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610243543.5A CN105728607A (en) | 2016-04-19 | 2016-04-19 | Billet for forming large-sized double-lug U-shaped forged piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105728607A true CN105728607A (en) | 2016-07-06 |
Family
ID=56255487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610243543.5A Pending CN105728607A (en) | 2016-04-19 | 2016-04-19 | Billet for forming large-sized double-lug U-shaped forged piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105728607A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595455A (en) * | 2018-12-04 | 2019-04-09 | 贵州航天新力铸锻有限责任公司 | ITER project U-typed forging brake forming slab |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2321558Y (en) * | 1997-11-28 | 1999-06-02 | 王敦明 | Support piece workblank |
| CN1544179A (en) * | 2003-11-27 | 2004-11-10 | 宝钢集团上海五钢有限公司 | Hot working method of die steel large-scale modular forgings |
| WO2005099929A1 (en) * | 2004-04-16 | 2005-10-27 | Bosch Automotive Systems Corporation | Molding method by forging and molding method for case |
| CN101767177A (en) * | 2009-12-31 | 2010-07-07 | 上海新闵重型锻造有限公司 | Method for forging bearing support forge piece |
| CN102554084A (en) * | 2010-12-10 | 2012-07-11 | 上海重型机器厂有限公司 | Forging method for water chamber head of steam generator of third-generation nuclear power station |
| CN104162616A (en) * | 2014-08-26 | 2014-11-26 | 贵州航天新力铸锻有限责任公司 | Method for forging double-lug U-shaped forged piece for thermonuclear fusion reactor |
| CN104624890A (en) * | 2014-12-03 | 2015-05-20 | 鞍钢重型机械有限责任公司 | Forging method for lifting ring forged part |
-
2016
- 2016-04-19 CN CN201610243543.5A patent/CN105728607A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2321558Y (en) * | 1997-11-28 | 1999-06-02 | 王敦明 | Support piece workblank |
| CN1544179A (en) * | 2003-11-27 | 2004-11-10 | 宝钢集团上海五钢有限公司 | Hot working method of die steel large-scale modular forgings |
| WO2005099929A1 (en) * | 2004-04-16 | 2005-10-27 | Bosch Automotive Systems Corporation | Molding method by forging and molding method for case |
| CN101767177A (en) * | 2009-12-31 | 2010-07-07 | 上海新闵重型锻造有限公司 | Method for forging bearing support forge piece |
| CN102554084A (en) * | 2010-12-10 | 2012-07-11 | 上海重型机器厂有限公司 | Forging method for water chamber head of steam generator of third-generation nuclear power station |
| CN104162616A (en) * | 2014-08-26 | 2014-11-26 | 贵州航天新力铸锻有限责任公司 | Method for forging double-lug U-shaped forged piece for thermonuclear fusion reactor |
| CN104624890A (en) * | 2014-12-03 | 2015-05-20 | 鞍钢重型机械有限责任公司 | Forging method for lifting ring forged part |
Non-Patent Citations (1)
| Title |
|---|
| 赵晓光等: "ITER项目"U"型锻件弯曲成形数值模拟研究", 《锻压装备与制造技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595455A (en) * | 2018-12-04 | 2019-04-09 | 贵州航天新力铸锻有限责任公司 | ITER project U-typed forging brake forming slab |
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Application publication date: 20160706 |