CN104959442A - Production method of highly dimensionally accurate half shells - Google Patents
Production method of highly dimensionally accurate half shells Download PDFInfo
- Publication number
- CN104959442A CN104959442A CN201510404542.XA CN201510404542A CN104959442A CN 104959442 A CN104959442 A CN 104959442A CN 201510404542 A CN201510404542 A CN 201510404542A CN 104959442 A CN104959442 A CN 104959442A
- Authority
- CN
- China
- Prior art keywords
- bearing shell
- preformed
- section
- cross
- dimensionally accurate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/30—Deep-drawing to finish articles formed by deep-drawing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Mounting Of Bearings Or Others (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to a method for producing highly dimensionally accurate, deep-drawn half shells having a floor area (3) and a notch (2), wherein a preformed half shell (1) is first formed from a circuit board. The task of providing a method for producing highly dimensionally accurate half shells, with which highly dimensionally accurate half shells which can be easily welded to one another can be manufactured cost-effectively with minimal machined-based complexity, is achieved according to the invention in that due to the geometric shape the entire cross-section of the preformed half shell (1) has excess circuit board material, the entire cross-section is compressed by the excess material in the final shape thereof during reshaping of the preformed half shell (1) by way of at least one more pressing procedure into the finished half shell, and the finished half shell has an enlarged wall thickness substantially over the entire cross-section.
Description
Technical field
The present invention relates to a kind of method of the bearing shell for the manufacture of the accurate deep-draw of dimensional height, this bearing shell comprises bottom section and side plate, wherein, is first preformed bearing shell by one piece of sheet metal forming, then makes the bearing shell that preformed bearing shell has been deformed into.
Background technology
More and more, adopt closed hollow molding part in a motor vehicle, these hollow molding parts have matched cross section and material thickness with service condition especially.Up to now, the hollow molding part closed manufactures like this, that is, make a body, this body is bent and preformed process aptly, next carries out by prebend or preformed body is formed as the hydraulic pressure deformation process of the net shape of closed hollow molding part.On the one hand, not every component can manufacture by this way, this is because the local percentage elongation of material is surmounted in hydraulic pressure deformation process, and therefore, it is possible to causes the formation of rupturing.And, uncontrollable fold can also be produced formed in hydraulic pressure deformation process.Draw thus, the method step for the manufacture of hollow molding part that is matched with use, that close used up to now very expends cost, and therefore causes high cost.Although the hollow molding part principle closed can also be made up of the bearing shell of two deep-draws.But produce stress in the process of slab being carried out to deep-draw in slab, this stress can cause the resilience of bearing shell.The resilience of bearing shell makes the accurate location of bearing shell in punch die become difficulty, and the accurate location of bearing shell in punch die is to bearing shell is welded into closed hollow molding part.In the process that bearing shell is located when welding, the welding forming the bearing shell edge of I shape interface (I-Sto β) causes still having very high cost consumption so far due to the resilience of bearing shell.For this reason, up to now, the hollow molding part closed be made up of the bearing shell welded is welded on the lug area of protrusion usually.This closed hollow molding part can not can also use as this kind of closed hollow molding part due to the weld seam protruded, and this kind of closed hollow molding part refers to be made up of welded pipe and not have the weld seam of protrusion.In addition, flange also improves the gross weight of component.
The assembling of bearing shell in motor vehicle structure with strong rebound performance has very high cost consumption due to strong delay.These parts must be aimed at by householder method, so just cause higher cost.
In disclosed Japanese patent application JP 08/168830, provide a kind of method for the manufacture of bearing shell, in the method, first by slab deep-draw in punch die, and produce protrude lug area.Next, by the mode of piercing punch and punch die, roll compacting and shearing are carried out to lug area simultaneously.The problem of the bearing shell in this way manufactured is, the edge of bearing shell is uneven, and can not be particularly well suited to the welding forming I shape interface thus.Draw thus, bearing shell also has screen resilience usually, and this screen resilience makes welding become difficulty.
Provide a kind of for the stamping forming method of bearing shell in disclosed European patent application EP 1 792 671 A1, then stamping forming bearing shell is welded into closed hollow molding part.The object of this european patent application is, provides a kind of bearing shell between bottom section and side plate with the fringe region of thickening.For this reason, be first preformed bearing shell by sheet metal forming, this preformed bearing shell provide more than material, by this more than material be pressed onto the fringe region between the side plate of bearing shell and bottom section from bottom section in deformation process.Correspondingly thereto, the object of the invention is the resilience of the bearing shell reducing deep-draw.
Summary of the invention
Draw thus, the object of this invention is to provide a kind of method for the manufacture of the accurate bearing shell of dimensional height, can produce the accurate bearing shell of dimensional height inexpensively on the basis of little equipment consumption by the method, such bearing shell can be welded to each other by simple mode.
According to technical scheme of the present invention, above-mentioned purpose realizes thus, namely, the whole cross section of preformed bearing shell is made to have unnecessary mat material due to the geometry of cross section, by unnecessary material at preformed bearing shell in the deformation process of net shape, through pressing process at least again and the bearing shell whole cross section roll compacting become, and this bearing shell completed has the wall thickness of increase substantially on whole cross section.
Due to more than material and complete in punch die the roll compacting carrying out whole cross section in the process striking out net shape, thus make more than Distribution of materials in whole cross section.The whole cross section of roll compacting, causes so thus, and the stress produced in preformed bearing shell in pressing process is aligned perpendicular direction in the region of side plate, and aims at horizontal direction in bottom section.At this, the pressing process forming net shape causes the increase of liner wall thickness.Eliminate the resilience of bearing shell simultaneously, this is because the roll compacting produced is overlapped in screen resilience, and make screen resilience convert the stress causing relative resilience in bearing shell to.Result be to provide a kind of there is high especially accuracy to size complete shaping bearing shell.High accuracy to size like this causes, and can make the bearing shell made according to the inventive method on flangeless bearing shell, such as carry out the welding of I shape interface in a straightforward manner.Relative to traditional deep-draw processing, under the condition of high accuracy to size, also achieve the minimizing of tolerance.
According to the first organization plan of the present invention, can provide on bottom section like this with method in a particularly simple way more than mat material, that is, make the bottom section of preformed bearing shell have concave surface, convex surface or wavy shaped configuration.
According to another organization plan of the inventive method, this preformed bearing shell has lug area, and side plate stretches under the obstruction of flange, thus makes the resilience of this preformed bearing shell therefore, it is possible to be reduced.
A kind of flangeless bearing shell can be provided like this according to one of the inventive method expansion embodiment, that is, make lug area among the process of the bearing shell be deformed into and/or afterwards by cross-slide or laser cutting or be separated by other method.Even if having employed the preformed bearing shell with lug area, but still provide thus a kind of economy, for the method for the accurate flangeless bearing shell of preferred manufacturing dimension height.
Can provide so such as the necessary intensity of the application of bearing shell in motor vehicle structure according to another embodiment of the inventive method, that is, make slab be made up of steel or steel alloy.Provide the good deformation performance of slab simultaneously.
Can also improve so further according to the inventive method, namely, slab is carried out in an independent device to the distortion of preformed bearing shell and preformed bearing shell to the distortion of net shape, preferably carry out independent having in the punch die of interchangeable bottom, such as this can carry out in a multi-station progressive die.Can not only to reduce investment outlay thus cost, but also can, usually periodically for the manufacture of bearing shell, this is because of no need of considering the transmitting range between different punch dies.So just achieve the extra high economic performance of the inventive method.
Accompanying drawing explanation
Present approach provides the multiple technical scheme that can combine and expand.To this, be described by the dependent claims of claim 1 on the one hand, and another aspect passes through three embodiments of the inventive method in conjunction with the accompanying drawings.Next, there is shown:
Fig. 1 is the schematic cross-section of the preformed bearing shell of first embodiment of the inventive method;
Fig. 2 is a) and b) schematic cross-section of preformed bearing shell in second-order deformation process of Fig. 1 of first embodiment of the inventive method;
Fig. 3 is the schematic cross-section of the preformed bearing shell of second embodiment of the inventive method;
The schematic cross-section of the bearing shell that Fig. 4 a) and b) has been deformed into for the preformed bearing shell of second embodiment of the inventive method;
Fig. 5 is the schematic cross-section of the preformed bearing shell of the 3rd embodiment of the inventive method;
Fig. 6 is a) and b) for the preformed bearing shell of the 3rd embodiment of the inventive method is deformed into the schematic cross-section of net shape.
Detailed description of the invention
The schematic cross-section of preformed bearing shell 1 is first illustrated in Fig. 1.This bearing shell comprises side plate 2 and bottom section 3.Further as shown in Figure 1, bottom section 3 slightly arches upward, and this bearing shell is also additionally provided with flange 4.
Fig. 2 a) and 2b) in first embodiment of the inventive method has been shown.First, figure schematically show the punch die 5 with die 6, play flangeless bearing shell 1 when this die can make thus together with punch press 7 and be deformed into net shape.From Fig. 2 a), punch press 7 due to the preformed of bearing shell 1 in deformation process on bearing shell 1 roll compacting bottom section 3 and side plate 2.Form flow of material due to this rolling process, this flow of material roughly correspond to Fig. 2 a) shown in the direction of arrow.On the one hand, slightly increased on whole cross section by the wall thickness of the bearing shell made via the roll compacting of whole cross section.The increase of wall thickness is not shown in the accompanying drawings.On the other hand, this it also illustrates simultaneously, in deformation process, in bottom section 3, produces stress in horizontal direction and in side plate 2 in vertical direction.Thus, screen resilience converts stress to, and this stress causes relative resilience.Just cause so like this, completed shaping bearing shell and there is higher accuracy to size.First first preformed bearing shell 1 has the bottom section 3 of convex surface, thus is provided for the extra mat material of roll compacting.
Different from the embodiment of Fig. 1, the preformed bearing shell 1 ' of Fig. 3 provides the extra mat material for roll compacting, this is because preformed bearing shell 1 ' has the bottom section 3 ' of convex surface.In the process of distortion, the excess stock of the bottom section of this convex surface is pressed in lateral side regions and bearing shell plate region in, thus produce to extend perpendicular to bottom section in side plate 2 ' and in bottom section the stress of horizontal-extending, this stress has caused the resilience of shaping bearing shell 1 ' deficient.In addition, from Fig. 4 a) and 4b), punch press 7 ' is convenient to manufacture shaping especially, and does not need to have the parts for side plate roll compacting.The roll compacting of side plate 2 ' is realized by fixture 8 ', and this fixture produces roll compacting due to the flow of material of bottom section 3 '.
Finally, Fig. 5 shows the schematic cross-section of preformed bearing shell 1 〞, according to the 3rd embodiment of the inventive method, even if this bearing shell also has lug area 4 〞 in deformation process.As from Fig. 6 a) and 6b), according to the 3rd embodiment of the inventive method, lug area 4 〞 is fixed by fixture 8 〞 in deformation process.In the 3rd embodiment, bottom section 3 〞 is convex configuration preformed, thus can provide enough mat material, and then carrys out roll compacting bottom section 3 〞 and side plate 2 〞 according to the present invention.Then shear treatment can be carried out to flange 4 〞.
Claims (4)
1. the method for the manufacture of the bearing shell of the accurate deep-draw of dimensional height, described bearing shell comprises bottom section and side plate, wherein, first be preformed bearing shell by one piece of sheet metal forming, wherein said preformed bearing shell has lug area, then described preformed bearing shell is made to be deformed into, flangeless bearing shell, it is characterized in that, described side plate stretches under the obstruction of flange, the whole cross section of described preformed bearing shell has unnecessary mat material due to the geometry of cross section, by unnecessary material at described preformed bearing shell in the deformation process of net shape, through pressing process at least again and the bearing shell that described whole cross section roll compacting has been become, and, the described bearing shell completed has the wall thickness of increase substantially on described whole cross section, described lug area is wherein made to be separated by cross-slide or laser cutting among the process of the bearing shell be deformed into and/or afterwards.
2. method according to claim 1, is characterized in that, make the bottom section of described preformed bearing shell have concave surface, convex surface or wavy shaped configuration.
3. method according to claim 1 and 2, is characterized in that, described slab is made up of steel or steel alloy.
4. method as claimed in any of claims 1 to 3, it is characterized in that, described slab is carried out to the distortion of net shape in one apparatus to the distortion of preformed bearing shell and described preformed bearing shell, preferably carries out in the punch die with interchangeable bottom.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007059251.7 | 2007-12-07 | ||
| DE102007059251A DE102007059251A1 (en) | 2007-12-07 | 2007-12-07 | Production method of high dimensional half shells |
| CN2008801195809A CN101888908A (en) | 2007-12-07 | 2008-11-17 | Production method of highly dimensionally accurate half shells |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801195809A Division CN101888908A (en) | 2007-12-07 | 2008-11-17 | Production method of highly dimensionally accurate half shells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104959442A true CN104959442A (en) | 2015-10-07 |
Family
ID=40342737
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801195809A Pending CN101888908A (en) | 2007-12-07 | 2008-11-17 | Production method of highly dimensionally accurate half shells |
| CN201510404542.XA Pending CN104959442A (en) | 2007-12-07 | 2008-11-17 | Production method of highly dimensionally accurate half shells |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801195809A Pending CN101888908A (en) | 2007-12-07 | 2008-11-17 | Production method of highly dimensionally accurate half shells |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2217393B1 (en) |
| CN (2) | CN101888908A (en) |
| AT (1) | ATE549110T1 (en) |
| DE (1) | DE102007059251A1 (en) |
| WO (1) | WO2009071437A1 (en) |
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| CN107794385A (en) * | 2017-10-13 | 2018-03-13 | 烟台大丰轴瓦有限责任公司 | A kind of preparation method of large ship engine spindle watt |
| CN107838638A (en) * | 2017-11-03 | 2018-03-27 | 重庆跃进机械厂有限公司 | A kind of large thin-wall bearing shell Anti-deformation forming method |
| CN109070171A (en) * | 2016-04-04 | 2018-12-21 | 蒂森克虏伯钢铁欧洲股份公司 | Method and apparatus for molding semi product |
| CN109789468A (en) * | 2016-09-29 | 2019-05-21 | 蒂森克虏伯钢铁欧洲股份公司 | For producing the method and apparatus with the component for having carried out matched bottom section |
| CN109803773A (en) * | 2016-09-29 | 2019-05-24 | 蒂森克虏伯钢铁欧洲股份公司 | Method for producing the shaped component with accurate in size plate region |
| CN109862973A (en) * | 2016-09-07 | 2019-06-07 | 蒂森克虏伯钢铁欧洲股份公司 | For manufacturing the Method and kit for of thin-plate member |
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| DE102009059197A1 (en) | 2009-12-17 | 2011-06-22 | ThyssenKrupp Steel Europe AG, 47166 | Method and device for producing a half-shell part |
| DE102011115219B4 (en) * | 2011-09-24 | 2020-11-05 | Audi Ag | Method and device for producing a sheet metal part avoiding trailing edges |
| DE102013103612B8 (en) | 2013-04-10 | 2023-12-28 | Thyssenkrupp Steel Europe Ag | Process and compression tool for producing highly dimensionally stable half-shells |
| DE102013103751A1 (en) | 2013-04-15 | 2014-10-16 | Thyssenkrupp Steel Europe Ag | Process for the production of high-volume half-shells and apparatus for producing a half-shell |
| DE102016116758A1 (en) | 2016-09-07 | 2018-03-08 | Thyssenkrupp Ag | Method and device for producing shaped, in particular flange-shaped, sheet-metal components |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4437395A1 (en) * | 1994-10-19 | 1996-05-02 | Werdau Fahrzeugwerk | Method for upsetting pipe ends and device for carrying out the method |
| JP3579936B2 (en) * | 1994-11-21 | 2004-10-20 | トヨタ自動車株式会社 | Molding method for bottomed tubular products |
| JP3518004B2 (en) | 1994-12-19 | 2004-04-12 | 株式会社デンソー | End face cutting method for annular workpiece and end face forming die used for the end face cutting method |
| DE19648091C2 (en) * | 1996-11-20 | 1999-10-28 | Daimler Chrysler Ag | Method and device for producing hollow profiles with end cross-sectional enlargements |
| JP3832927B2 (en) * | 1997-06-02 | 2006-10-11 | プレス工業株式会社 | Axle case manufacturing method |
| JP2001314921A (en) * | 2000-04-28 | 2001-11-13 | Nissan Motor Co Ltd | Pressing method for expanding local area thickness |
| JP4697086B2 (en) | 2005-12-01 | 2011-06-08 | 日産自動車株式会社 | Molded part having bent corners, manufacturing method thereof and manufacturing apparatus |
| DE102006020000B3 (en) * | 2006-04-26 | 2007-11-08 | Thyssenkrupp Steel Ag | Method for producing low-spring half shells |
-
2007
- 2007-12-07 DE DE102007059251A patent/DE102007059251A1/en not_active Withdrawn
-
2008
- 2008-11-17 EP EP08858046A patent/EP2217393B1/en active Active
- 2008-11-17 CN CN2008801195809A patent/CN101888908A/en active Pending
- 2008-11-17 AT AT08858046T patent/ATE549110T1/en active
- 2008-11-17 WO PCT/EP2008/065700 patent/WO2009071437A1/en active Application Filing
- 2008-11-17 CN CN201510404542.XA patent/CN104959442A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101888908A (en) | 2010-11-17 |
| DE102007059251A1 (en) | 2009-06-10 |
| EP2217393A1 (en) | 2010-08-18 |
| ATE549110T1 (en) | 2012-03-15 |
| EP2217393B1 (en) | 2012-03-14 |
| WO2009071437A1 (en) | 2009-06-11 |
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Application publication date: 20151007 |