CN1285249A - Method for forming fan-shape polygon frame forge piece - Google Patents
Method for forming fan-shape polygon frame forge piece Download PDFInfo
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- CN1285249A CN1285249A CN 00122975 CN00122975A CN1285249A CN 1285249 A CN1285249 A CN 1285249A CN 00122975 CN00122975 CN 00122975 CN 00122975 A CN00122975 A CN 00122975A CN 1285249 A CN1285249 A CN 1285249A
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Abstract
The forging process includes the following steps: forging hole-enlarged ring which is a ring basically, marking on end face of the hole-enlarged ring according to the position ratio of sectorial polygonal frame corners, single-side lengthening according to the size of every side of sectorial polygonal frame and ensuring that marked place possesses a certain wall thick range and its height can not be allowed to becomse small exceeding its requirement and symmetricall hot angle pressing at marked place according to the corner form. Said process is stable and reliable, low in cost, short in production period, and specially is applicable to fine working process of polygonal frame structural member blanks of high-temp. alloy and structural steel, etc with multiple corners.
Description
The present invention relates to integrate forging process, specifically belong to the improvement of fan-shape polygon frame structural member manufacturing process.
It is typical fan-shaped four frame body structures that the burner inner liner gas conduct pipe of combustion gas wheel portion of GE (GEPS) is installed the limit.This part has the turning, many places, and four limits are frame structure, is the structural member of more complicated.This part adopts the sheet material integral cutting technology of machining then in a large number, and this technology not only waste of raw materials is serious, and the part metallic fiber streamline distribution of producing is discontinuous, and structure property is very poor.Adopted split hot bending shaping base although have afterwards, this has compared improvement with the former, but, need to increase operations such as butt welding, flaw detection and heat treatment, have the problem that the production cycle is long, raw materials consumption is big, production efficiency is low, and the metallic fiber streamline of part still not whole continuous distributed.Chinese patent 88100946A discloses a kind of method of making near net ring gear forgings, belongs to integrate forging process.It adopts blank jumping-up, reaming, the rolling way of annular, woolen cloth is refined greatly, and improved the grain flow of profile of tooth by forging.But it only relates to the blank refinement of ring gear, for having turning, many places and framework, even fan-shaped structural member and inapplicable.
The object of the present invention is to provide and a kind ofly can overcome above-mentioned shortcoming and deficiency, more optimal integral forging and forming method.Use the method on common forging equipment, to make fan-shape polygon frame class part, can reduce material consumption greatly, shorten the production cycle, reduce cost.Because metal streamline is in desirable continuous distributed state, makes the structure property of part to improve greatly.
Technical solution of the present invention is: at first, by desired billet weight cutting stock, adopt hammer to go up open die forging jumping-up, punching, reaming.At this moment, note the height control of blank in the upsetting process, be essentially the reaming ring internal diameter of annular and the control of wall thickness and corresponding height in the reaming process, the blank height that control criterion requires when giving forging satisfying is as the criterion.After the reaming, at reaming ring end face, according to the position proportional marking marking at fan-shape polygon frame turning.Then, according to the length on each limit of fan-shape polygon frame, with the pulling of each limit of reaming ring and guarantee the wall thickness in the certain limit of head-stamp place on the reaming ring and highly do not allow to exceed diminishing of requirement.This requirement remains with the wall thickness that gives the desired blank of forging corner and highly is as the criterion.Then, according to the shape at each turning of fan-shape polygon frame, carry out heat button angle symmetrically again in head-stamp place of reaming ring.Certainly all these measures all are in order to guarantee the reasonable distribution of each peripheral required metal of polygon frame.In the trimming before the shape of school, the local discomfort of each cross-sectional width will be repaired during to monolateral pulling, so that reaming ring global shape satisfies the requirement of loose tool school shape.When forging school shape with loose tool, the loose tool of employing has the yin, yang mould of certain taper by top and play the sleeve that pushing reaming ring blanking uses between the yin, yang mould and constitutes.The school shape mould of this structure has guaranteed very not regular reaming ring, on hammer or on the forcing press, by the pushing of sleeve, can realize school shape by the narrow zone in the loose tool smoothly.And the width of loose tool middle part narrow zone gives the respective width of forging die cavity and is determined by giving the forger preface.Among former and formpiston, the relative former of formpiston is an on-fixed, so that freely adjust the inconsistent of the corresponding width of institute's school reaming ring.Certainly, among above-mentioned these base measures, select suitable blank heating temperature, heat time heating time very necessary at concrete deformation metal material, base is with instruments such as hammering block, plug, fetal membrane equipment, and it is also very necessary to give heat under the hot temperature in certain giving.So far, the fan-shape polygon frame structural member blank of refining is finished substantially.Give in forging, the finish-forging operation ensuing, the present invention selects contour forging technique, carries out on forging hammer or forcing press, and employing can be satisfied before the machining the requirement of woolen cloth and custom-designed forging die.At difformity, different materials member, the deformation extent that gives forging should be the finish-forging shaping and leaves and takes a certain proportion of deflection.For reducing the element dilution in the blank heating process, the blank heating front surface should be coated with the surface-coated agent and protect; For guaranteeing desirable the flowing and stripping result of blank in the deformation process, mold cavity should apply lubricant, releasing agent.Certainly, in giving forging, finish-forging, the heating-up temperature of giving heat, blank of mould is also very important, especially will control the temperature range of finish-forging process, because it guarantees the final structure property requirement of forging.For eliminate forging distortion, the warpage of back part, before heat treatment, increase cold sizing, cold sizing can carry out on hydraulic press, and pressurize a period of time is to guarantee the stable of size after the off-load.Then forging is heat-treated to eliminate the residual stress after proofreading and correct.Finally, will meet the woollen fan-shape polygon frame structural member that requires of machined through solid forging and submit check to.
See embodiment below in conjunction with accompanying drawing.
Fig. 1 is a kind of fan-shaped four frame body structure schematic diagrames.
Fig. 2 is the H-H cutaway view among Fig. 1.
Fig. 3 is a reaming ring schematic diagram.
Fig. 4 is a reaming ring marking marking schematic diagram.
Fig. 5 is the monolateral pulling schematic diagram of reaming ring.
Fig. 6 is a reaming latch closure angle special tooling schematic diagram.
Fig. 7 is a fetal membrane school shape mould schematic diagram.
Fig. 8 is a kind of fan-shaped three frame body structure schematic diagrames.
Fig. 9 is the C-C cutaway view among Fig. 8.
Embodiments of the invention one:
GEPS company installs the limit and is Fig. 1, shown in Figure 2, its external dimensions A and B are about 532 and 223, its material is the NIMONIC263 heat-resisting alloy that U.S. application specific standard AMS5886A determines, its manufacturing procedure is as follows: select φ 100-φ 200 bars by desired billet weight blanking, jumping-up, punching, jumping-up height control 42-45,1130 ± 10 ℃ of heating-up temperatures of punching control, drift give hot 200-300 ℃.Reaming is referring to Fig. 3, and this moment, blank heating temperature was 1130 ± 10 ℃, and mould gives hot 150-300 ℃, notices that control is interior through φ about 300, and the reaming ring wall is thick and highly get 41 ± 1.5 and 45 ± 2.The reaming ring end face marking marking is referring to Fig. 4, at the present embodiment corner location, gets mark and respectively with after the reaming ring center of circle links to each other in the angle ratio, formation α
1, α
2, β
1, β
2β is got at four angles
1=β
2, α
2＞α
1The reaming ring good to mark carries out monolateral pulling, referring to Fig. 5, get 1130 ± 10 ℃ of blank heating temperatures this moment, and the mould therefor frock is given hot 150-300 ℃, require to guarantee to reduce, with the needs of guaranteeing that subsequent handling is full of four jiaos of metals to the blank that indicates in the marking place left and right sides certain limit.The control of monolateral pulling size should make monolateral sectional dimension satisfy the needs that give forging, satisfies the requirement of school shape to the blank peripheral length again.During the button angle, get 1120 ℃-950 ℃ of button angle temperature, the used frock in button angle is given hot temperature 150-300 ℃, and position, blank button angle should be symmetrical in the marking place of demarcation respectively.Button angle special tooling is referring to Fig. 6, and wherein, 1 is recessed pressure angle mould, and 2 is protruding pressure angle mould, and 3 are reaming ring blank.Carry out shaping through the reaming ring of button behind the angle, should strict the local discomfort of monolateral pulling middle section width be repaired in the shaping, to avoid in the shape of loose tool school causing forming reverse burr because the part is too generous.Following operation loose tool school shape, purpose are to provide required blank shape for giving forging, and determine that rational loose tool structure is its key.In the present embodiment, the loose tool structure is seen Fig. 7, wherein 4 is that formpiston, 5 is that sleeve, 6 is that former, 7 is cushion block, the width of loose tool middle part narrow zone is crack between the matched molds, determined by the width that gives forging die cavity, the single face width gives the forging die cavity width can be narrower, and the reaming ring height of its straightway height and school shape is approaching.Yin, yang mould and sleeve all adopt the alloy tool steel manufacturing, and yin, yang mould tapering is got-15 ℃, and the crack is greater than 0.5 between former, formpiston, the sleeve.During school shape, the shaping blank after at first will heating places the upper end of formpiston 4, after treating tup and formpiston 1 flushing, relies on sleeve to push away blank to loose tool bottom for 5 times again and takes out.In the shape of school, get 1120 ± 10 ℃ of blank heating temperatures, above operation is all carried out on flat-die hammer.Following operation is given forging, gets 1130 ± 10 ℃ of blank heating temperatures, and the final temperature of deformable metal is not less than 950 ℃, and giving and forging deformation extent is that finish-forging is left and taken the 25-30% deflection, and the blank that gives after the forging is advisable obvious burr not occur.Following operation finish-forging, total deformation extent is got 25-30%, and the temperature range of control finish-forging is 1130-950 ℃, and guarantees the structure property requirement that forging is final with this.Above-mentionedly give forging, the finish-forging mould gives hot temperature and all gets 150-300 ℃, blank surface applies agent and gets glass lubricant, mold cavity lubricant, releasing agent and get graphite molybdenum bisuphide and add Gun oil intermixture.Forge the distortion such as bending that the back produces for eliminating, the forging of removing burr and removing surface is carried out cold sizing, proofread and correct and on hydraulic press, carry out, and pressurize 2-3min.The residual stress in cold school relies on heat treatment to eliminate.According to the AMS5886A standard, get 1080-1163 ℃ of air cooling, solution treatment then, is got 802 ± 8 ℃ of Ageing Treatment, insulation 8 ± 0.5h air cooling.Finally, through these fan-shaped four frame bodies that check is submitted to the limit is installed, judge that according to the versatile material standard A STME112 of the U.S. metallurgical technology association forging grain size is the 4-6 level, check and accept rank 0-2 level than GEPS company according to the installation limit grain size of the former regulation of AMS5886 and improve significantly.Every performance indications that forging is surveyed behind solid solution aging are such as σ
b, σ
0.2And δ all is better than former AMS5886A specified standard.
Embodiments of the invention two:
Certain switchgear plant's part connecting lever is shown in Figure 8, and material is 40C
rN
iM
oContour dimension three limits approximately respectively are-265, its manufacturing procedure is as follows: select bar, by desired billet weight blanking, jumping-up, punching, highly be controlled at 40, drift gives hot 200-300 ℃, 1130 ± 20 ℃ of blank heating, at this moment, the reaming ring wall is thick and highly get 35 ± 1.5 and 40 ± 2, be close to equilateral triangle at the present embodiment corner location, its corner location can come mark by three isogonisms, also can be equilateral promptly in line segment ratio mark and the reaming ring monolateral pulling good to mark in three, this moment, heating-up temperature was the same, gave hot the same, notice guaranteeing that the blank in the certain limit of the mark left and right sides can not reduce, with the needs of guaranteeing that subsequent handling is full of place, three angles metal.Monolateral pulling size Control should satisfy monolateral cross section and give requirement when forging, also will satisfy the requirement of peripheral length.The button angle will be carried out in the mark of correspondence, and will guarantee to detain the angle temperature and be not less than 850 ℃, and button angle frock also should heat.Follow-up trimming, heating-up temperature also will be controlled and be not less than 850 ℃, heating-up temperature is 1050 ± 10 ℃ during school shape, give forging and finish-forging and get 1130 ± 20 ℃, notice that this deformation metal final temperature should be not less than 850 ℃, at last, normalizing is got in heat treatment, is heated to 870 ℃ ± 10 ℃, insulation 1.5-2h air cooling.So far, the preforming of this connecting lever is finished substantially, and the part through check is submitted to satisfies technological requirement fully.
The invention has the advantages that: the correspondingly configured operation of forging is simple; Raw materials consumption is low, and is qualified The rate height; Forging is on the basis of obtaining desirable structure property, and this fan-shape polygon frame part can Obtaining best fibre flow distributes. Such as embodiment one described mounting edge forging, its material disappears Consumption can be saved more than 38% than the blank of plate cutting, bends blank than split and can save 20%: comply with According to the test stone of AMS5886A to this mounting edge regulation, forging is measured performance behind solid solution aging Index sees the following form:
Show as seen thus, the obtained mirco structure of forging and performance indications obviously are better than AMS5886A Required standard. The forging of manufacturing of the present invention equally distributed complete streamline of profile around the forging is it Its process is incomparable. The invention enables production cost greatly to reduce, the production cycle greatly Shorten, the operation process stabilization is reliable, be applicable to high temperature alloy, stainless steel, titanium alloy, aluminium alloy, The forming fan-shape polygon frame forge piece of the various materials such as structural steel. Certainly, the present invention also can be used for three Dihedral, quadrangle etc. have the polygon forging of framework. Because streamline is continuous, the best that distributes, this The blank forging that invention is particularly useful for having the turning, many places, four limits are the bearing member of frame structure.
Claims (2)
1, a kind of method of forming fan-shape polygon frame forge piece comprises: blanking, jumping-up, punching, reaming, shaping, school shape, give forging, finish-forging, correction, heat treatment, it is characterized in that:
-dash, after the reaming, on the end face of reaming ring according to the position proportional marking marking at fan-shape polygon frame turning; Then
-according to the length on each limit of fan-shape polygon frame with each limit pulling of reaming ring and guarantee on the reaming ring that the wall thickness in the head-stamp place certain limit exceeds diminishing of requirement with highly not allowing; Then
-carry out heat button angle according to the shape at each turning of fan-shape polygon frame symmetrically in head-stamp place of reaming ring; Then
In trimming, the local discomfort of each cross-sectional width is revised so that reaming ring global shape satisfies the requirement of loose tool in the shape operation of school during to monolateral pulling.
2, the method for forming fan-shape polygon frame forge piece according to claim 1 is characterized in that: the position proportional marking marking according to the fan-shape polygon frame turning, can adopt angle ratio mark, and also can adopt line segment ratio mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00122975A CN1111103C (en) | 2000-09-11 | 2000-09-11 | Method for forming fan-shape polygon frame forge piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00122975A CN1111103C (en) | 2000-09-11 | 2000-09-11 | Method for forming fan-shape polygon frame forge piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1285249A true CN1285249A (en) | 2001-02-28 |
| CN1111103C CN1111103C (en) | 2003-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00122975A Expired - Fee Related CN1111103C (en) | 2000-09-11 | 2000-09-11 | Method for forming fan-shape polygon frame forge piece |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313225C (en) * | 2002-07-12 | 2007-05-02 | 三菱麻铁里亚尔株式会社 | Frame producing method and frame |
| US7290337B2 (en) | 2002-07-12 | 2007-11-06 | Mitsubishi Materials Corporation | Manufacturing method for frame body and frame body |
| CN101085500B (en) * | 2007-07-12 | 2011-11-23 | 南京中盛铁路车辆配件有限公司 | Preparation method for railway freight car coupler tail frame integral forging |
| CN103157760A (en) * | 2011-12-09 | 2013-06-19 | 韶关市中机重工锻压有限公司 | Gear blank production technology method with hammer forging and die forging combined |
| CN103286521A (en) * | 2012-02-27 | 2013-09-11 | 山西天宝风电法兰有限公司 | Forging technology of oval wind-power door frame flange |
| CN104307980A (en) * | 2014-09-01 | 2015-01-28 | 福瑞盛航空机件（苏州）有限公司 | High-temperature alloy frame-shaped ring forming fixture and forming process thereof |
| CN104525807A (en) * | 2014-11-10 | 2015-04-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for forming corners of frame forging piece |
| CN106040931A (en) * | 2016-06-20 | 2016-10-26 | 安徽省瑞杰锻造有限责任公司 | Free forging process for sector plate forge piece |
| CN108031784A (en) * | 2017-12-13 | 2018-05-15 | 陕西宏远航空锻造有限责任公司 | A kind of the forging loose tool and method for forging and molding of frame class installation side forging |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453203C (en) * | 2006-09-12 | 2009-01-21 | 钟六妹 | Forging method of high grade carbon steel hook, ring parts |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539182B2 (en) * | 1972-01-25 | 1978-04-04 | ||
| SU1139553A1 (en) * | 1983-06-30 | 1985-02-15 | Ижевский механический институт | Method of manufacturing ring forgings |
| US4856167A (en) * | 1987-02-12 | 1989-08-15 | Eaton Corporation | Method for producing near net ring gear forgings |
| JPH0266366A (en) * | 1988-08-31 | 1990-03-06 | Ikeda Bussan Co Ltd | Gear structure |
| JP3194634B2 (en) * | 1992-10-29 | 2001-07-30 | 昭一 武本 | Manufacturing method of needle bearing case |
-
2000
- 2000-09-11 CN CN00122975A patent/CN1111103C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313225C (en) * | 2002-07-12 | 2007-05-02 | 三菱麻铁里亚尔株式会社 | Frame producing method and frame |
| US7290337B2 (en) | 2002-07-12 | 2007-11-06 | Mitsubishi Materials Corporation | Manufacturing method for frame body and frame body |
| CN101085500B (en) * | 2007-07-12 | 2011-11-23 | 南京中盛铁路车辆配件有限公司 | Preparation method for railway freight car coupler tail frame integral forging |
| CN103157760A (en) * | 2011-12-09 | 2013-06-19 | 韶关市中机重工锻压有限公司 | Gear blank production technology method with hammer forging and die forging combined |
| CN103157760B (en) * | 2011-12-09 | 2015-03-11 | 韶关市中机重工锻压有限公司 | Gear blank production technology method with hammer forging and die forging combined |
| CN103286521A (en) * | 2012-02-27 | 2013-09-11 | 山西天宝风电法兰有限公司 | Forging technology of oval wind-power door frame flange |
| CN104307980A (en) * | 2014-09-01 | 2015-01-28 | 福瑞盛航空机件（苏州）有限公司 | High-temperature alloy frame-shaped ring forming fixture and forming process thereof |
| CN104525807A (en) * | 2014-11-10 | 2015-04-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for forming corners of frame forging piece |
| CN106040931A (en) * | 2016-06-20 | 2016-10-26 | 安徽省瑞杰锻造有限责任公司 | Free forging process for sector plate forge piece |
| CN108031784A (en) * | 2017-12-13 | 2018-05-15 | 陕西宏远航空锻造有限责任公司 | A kind of the forging loose tool and method for forging and molding of frame class installation side forging |
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| Publication number | Publication date |
|---|---|
| CN1111103C (en) | 2003-06-11 |
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