WO2010128540A1 - テーラードブランク材およびそれを用いた構造部材の製造方法 - Google Patents
テーラードブランク材およびそれを用いた構造部材の製造方法 Download PDFInfo
- Publication number
- WO2010128540A1 WO2010128540A1 PCT/JP2009/002030 JP2009002030W WO2010128540A1 WO 2010128540 A1 WO2010128540 A1 WO 2010128540A1 JP 2009002030 W JP2009002030 W JP 2009002030W WO 2010128540 A1 WO2010128540 A1 WO 2010128540A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rolling
- blank material
- tailored blank
- structural member
- members
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
- B23K2101/185—Tailored blanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/122—Constructional features of arms the arm having L-shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/72—Steel
- B60G2206/722—Plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
- B60G2206/8201—Joining by welding
Definitions
- the present invention relates to a tailored blank material, and particularly to a tailored blank material suitable for a structural member such as a suspension arm.
- Patent Document 1 discloses a welded structural member that is provided with a notch in the vicinity of a welded portion between tailored blank materials to alleviate stress concentration in the welded portion.
- structural members used in automobiles and the like are required to satisfy both desired strength and weight reduction.
- weight for example, it is conceivable to reduce the thickness of the member by using a high-strength material, but in general, a high-strength material has little elongation and further improvement is required from the viewpoint of workability. It has been.
- parts such as suspension arms used in automobiles have complicated shapes, for example, it is difficult to perform high-precision molding by deep drawing or the like using a high-strength material as a material for such parts. .
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a tailored blank material excellent in formability.
- a tailored blank material is a tailored blank material formed by welding a plurality of rolling members, and at least one of the plurality of rolling members is a rolled member.
- the other rolling members are welded so that the rolling direction is different from the rolling direction of the other rolling members.
- the structural member manufactured by forming has a different deformation direction and amount of deformation depending on the part. Even in the case of a simple shape, good moldability can be obtained.
- the thickness of at least one rolling member among the plurality of rolling members may be different from the thickness of other rolling members.
- the rolling member corresponding to the portion where the strength is relatively unnecessary and the deformation amount due to molding is smaller than the other portions is thin, while the strength is required and the portion having a complicated shape where the deformation amount due to molding is large.
- the corresponding rolled member can be thickened. Therefore, it is possible to manufacture a structural member that achieves both high strength and light weight.
- the material of at least one rolling member among the plurality of rolling members may be different from the material of other rolling members. Accordingly, by selecting a rolled member made of an appropriate material for each portion having different required strength and deformation amount, it is possible to manufacture a structural member that achieves both high strength and light weight.
- Another aspect of the present invention is a method for manufacturing a structural member using a tailored blank material formed by welding a plurality of rolling members, and the rolling direction of at least one rolling member among the plurality of rolling members is A step of preparing a tailored blank material welded differently from the rolling direction of the other rolling members, and the amount of deformation of each of the plurality of rolling members in the rolling direction is greater than the amount of deformation in the direction intersecting the rolling direction. And forming the tailored blank material so as to be a structural member manufacturing method.
- a tailored blank material excellent in formability can be provided.
- FIG. 3A is a cross-sectional view taken along the line AA of the suspension arm shown in FIG. 2
- FIG. 3B is a cross-sectional view taken along the line BB of the suspension arm shown in FIG. 2
- FIG. 1 is a top view schematically showing a tailored blank material used for manufacturing a structural member according to the present embodiment.
- FIG. 2 is a perspective view of a suspension arm using the structural member according to the present embodiment.
- 3A is a cross-sectional view taken along the line AA of the suspension arm shown in FIG. 2
- FIG. 3B is a cross-sectional view taken along the line BB of the suspension arm shown in FIG. 2
- FIG. It is CC sectional drawing of the suspension arm shown.
- the tailored blank 10 welds three plate-shaped steel plates 12, 14, and 16 to each other, and considers the shape of the suspension arm after forming an extra portion. It has been cut.
- the steel plates 12, 14, 16 are welded so that the rolling directions 12a, 14a, 16a are different.
- high tensile steel high strength steel plate for automobiles
- the thickness of the steel plates 12, 14, and 16 may be appropriately set depending on the use of the structural member after forming. For example, if the thickness is about 1 to 10 mm, preferably about 2 to 5 mm, the weight reduction, strength, and formability are high. It can be compatible.
- the plate thickness can be reduced in order to satisfy the desired strength, but there is room for improvement in the formability of the deep drawing portion in drawing, for example. This is because the elongation (deformation amount) of a high-strength steel plate is smaller than that of a normal steel plate, and is not so suitable for processing that involves locally large deformation, such as drawing.
- the steel plates 12, 14, and 16 constituting the tailored blank material according to the present embodiment are rolled members, when the same stress is applied in various directions in each steel plate, the rolled direction (the rolling direction) ) Is larger than the deformation amount in the direction intersecting the rolled direction. Therefore, by considering the rolling directions 12a, 14a, 16a of the plurality of steel plates 12, 14, 16 to be welded, in the subsequent forming process such as drawing or bending, the structural member manufactured by, for example, forming is deformed depending on the part. Even in the case of complex shapes with different amounts of deformation, good moldability can be obtained.
- a lower arm used for a front suspension of an automobile will be specifically described as an example of a structural member manufactured using the above-described tailored blank material.
- a tailored blank material 10 as shown in FIG. 1 is prepared, and drawing or bending is performed by a die that is processed according to the shape of the lower arm. As shown in FIG. 2, the shape and deformation amount of the lower arm 18 are different depending on the portions 12b, 14b, and 16b where the steel plates 12, 14, and 16 are formed. Specifically, in the forming step according to the present embodiment, the tailored blank material 10 is formed such that the amount of deformation of each of the plurality of steel plates in the rolling direction is greater than the amount of deformation in the direction intersecting the rolling direction. .
- the direction in which the deformation at the portion 12b shown in FIG. 2 is the largest is substantially the same as the rolling direction 12a shown in FIG. That is, the tailored blank material 10 is easily deformed in the same direction as the rolling direction 12a as compared with the other directions, so that highly accurate molding is possible.
- the direction in which deformation during molding is large and the rolling directions 14a and 16a are substantially the same. Yes.
- the tailored blank 10 described above is not limited to the case where the steel plates 12, 14, 16 have the same thickness, and at least one of the plurality of steel plates may have a thickness different from the thickness of other steel plates. Good. As a result, the strength of the steel plate is relatively low, or the amount of deformation due to forming is smaller than that of the other parts.
- a tailored blank material in which the thickness of the steel plate corresponding to this part is increased it is possible to manufacture a lower arm that can achieve both high strength and light weight.
- the tailored blank material according to the present embodiment even if it is a structural member in which the amount of deformation during molding and the required characteristics are different for each part, it can be manufactured without impairing the moldability. .
- the tailored is considered in consideration of the rolling direction and the arm shape with good formability, that is, relatively easy to deform. What is necessary is just to determine the welding direction of each steel plate which comprises a blank material. That is, by matching the rolling direction of the steel plate with the direction in which it is most deformed at the time of forming, for example, formability is ensured even if a thin high-strength material for weight reduction is used.
- formability is ensured even if a thin high-strength material for weight reduction is used.
- the present invention has been described with reference to the above-described embodiment.
- the present invention is not limited to the above-described embodiment, and the present invention can be appropriately combined or replaced with the configuration of the embodiment. It is included in the present invention.
- the described embodiments can also be included in the scope of the present invention.
- the number of rolled members constituting the tailored blank material is not limited to three as in the present embodiment, but may be two or more. What is necessary is just to select suitably the number of the rolling members which comprise a tailored blank material, a magnitude
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims (4)
- 複数の圧延部材が溶接されて構成されているテーラードブランク材であって、
複数の圧延部材のうち少なくとも一つの圧延部材は、その圧延方向が、他の圧延部材の圧延方向と異なるように該他の圧延部材と溶接されていることを特徴とするテーラードブランク材。 - 前記複数の圧延部材のうち少なくとも一つの圧延部材は、その厚みが、他の圧延部材の厚みと異なることを特徴とする請求項1に記載のテーラードブランク材。
- 前記複数の圧延部材のうち少なくとも一つの圧延部材は、その材質が、他の圧延部材の材質と異なることを特徴とする請求項1または2に記載のテーラードブランク材。
- 複数の圧延部材が溶接されて構成されているテーラードブランク材を用いた構造部材の製造方法であって、
複数の圧延部材のうち少なくとも一つの圧延部材の圧延方向が、他の圧延部材の圧延方向と異なるように溶接されたテーラードブランク材を準備する工程と、
前記複数の圧延部材のそれぞれの圧延方向への変形量が圧延方向と交差する方向の変形量より多くなるように前記テーラードブランク材を成形する工程と、
を含む構造部材の製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/002030 WO2010128540A1 (ja) | 2009-05-08 | 2009-05-08 | テーラードブランク材およびそれを用いた構造部材の製造方法 |
US12/677,222 US20110127743A1 (en) | 2009-05-08 | 2009-05-08 | Tailored blank material and method of manufacturing structural member using the same |
DE112009004763T DE112009004763T5 (de) | 2009-05-08 | 2009-05-08 | Angepasster rohling und verfahren, um daraus ein bauteil herzustellen |
CN2009801163535A CN102317002A (zh) | 2009-05-08 | 2009-05-08 | 拼焊板材及使用该拼焊板材的结构件的制造方法 |
JP2009543261A JP4985783B2 (ja) | 2009-05-08 | 2009-05-08 | テーラードブランク材およびそれを用いた構造部材の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/002030 WO2010128540A1 (ja) | 2009-05-08 | 2009-05-08 | テーラードブランク材およびそれを用いた構造部材の製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010128540A1 true WO2010128540A1 (ja) | 2010-11-11 |
Family
ID=43050053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/002030 WO2010128540A1 (ja) | 2009-05-08 | 2009-05-08 | テーラードブランク材およびそれを用いた構造部材の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110127743A1 (ja) |
JP (1) | JP4985783B2 (ja) |
CN (1) | CN102317002A (ja) |
DE (1) | DE112009004763T5 (ja) |
WO (1) | WO2010128540A1 (ja) |
Cited By (3)
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---|---|---|---|---|
WO2015155974A1 (ja) * | 2014-04-11 | 2015-10-15 | 新日鐵住金株式会社 | プレス成形品の製造方法、及び自動車用ロアアーム |
WO2016190083A1 (ja) * | 2015-05-22 | 2016-12-01 | 新日鐵住金株式会社 | プレス成形品及びその設計方法 |
CN108213862A (zh) * | 2016-12-09 | 2018-06-29 | 明信产业株式会社 | 车体部件制造方法 |
Families Citing this family (11)
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IT1398384B1 (it) * | 2009-02-05 | 2013-02-22 | Sistemi Sospensioni Spa | Braccio oscillante per sospensione di veicolo e procedimento per la sua realizzazione |
WO2013094580A1 (ja) * | 2011-12-21 | 2013-06-27 | 本田技研工業株式会社 | サスペンションアーム取付構造 |
DE102012104909A1 (de) * | 2012-06-06 | 2013-12-12 | Benteler Automobiltechnik Gmbh | Querlenker sowie Verfahren zum Herstellen des Querlenkers |
JP2015009577A (ja) * | 2013-06-26 | 2015-01-19 | 株式会社神戸製鋼所 | 自動車用サスペンションアーム |
JP6236291B2 (ja) * | 2013-11-12 | 2017-11-22 | 豊田鉄工株式会社 | サスペンションアームの製造方法 |
JP5771320B2 (ja) * | 2013-12-19 | 2015-08-26 | 株式会社神戸製鋼所 | 自動車足回り部品 |
EP2927029B1 (de) * | 2014-04-02 | 2018-06-13 | Autotech Engineering Deutschland GmbH | Verfahren zum Herstellen eines Fahrwerklenkers |
EP2987665A1 (en) * | 2014-08-12 | 2016-02-24 | Tiberina Solutions S.R.L. | Method for stamping an arm for vehicle suspensions and such an arm |
US10160275B2 (en) * | 2014-11-05 | 2018-12-25 | Ford Global Technologies, Llc | Suspension member for a motor vehicle and method of making same |
FR3042443A3 (fr) * | 2015-10-15 | 2017-04-21 | Renault Sas | Ensemble d'elements de suspension de vehicule et vehicule correspondant |
FR3042444B1 (fr) * | 2015-10-16 | 2017-11-03 | Renault Sas | Bras de suspension presentant des epaisseurs differentes |
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WO2015155974A1 (ja) * | 2014-04-11 | 2015-10-15 | 新日鐵住金株式会社 | プレス成形品の製造方法、及び自動車用ロアアーム |
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CN108213862B (zh) * | 2016-12-09 | 2020-06-26 | 明信汽车科技株式会社 | 车体部件制造方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2010128540A1 (ja) | 2012-11-01 |
DE112009004763T5 (de) | 2012-10-04 |
US20110127743A1 (en) | 2011-06-02 |
JP4985783B2 (ja) | 2012-07-25 |
CN102317002A (zh) | 2012-01-11 |
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