WO2013087924A1 - Verfahren zum umformen von schmiedeteilen - Google Patents
Verfahren zum umformen von schmiedeteilen Download PDFInfo
- Publication number
- WO2013087924A1 WO2013087924A1 PCT/EP2012/075757 EP2012075757W WO2013087924A1 WO 2013087924 A1 WO2013087924 A1 WO 2013087924A1 EP 2012075757 W EP2012075757 W EP 2012075757W WO 2013087924 A1 WO2013087924 A1 WO 2013087924A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- forging
- forming
- die
- forged
- contour
- Prior art date
Links
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
- B21J5/008—Incremental forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
-
- 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
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- 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
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/025—Closed die forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/027—Special design or construction with punches moving along auxiliary lateral directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/06—Making machine elements axles or shafts
- B21K1/12—Making machine elements axles or shafts of specially-shaped cross-section
Definitions
- the present invention relates to a method for forming forgings, in particular for the formation of so-called secondary features on the forgings.
- forgings are, for example, knuckles of commercial vehicles.
- Transport and commercial vehicles ie, for example, cars, trucks, construction vehicles, trains
- forged components with complex geometries are used.
- the demands on the precision of the components have increased.
- forgings such as the aforementioned stub axles for commercial vehicles
- a blank is first produced in the current state of the art by forging, which is then re-machined mechanically after the trimming, that is machined to imitate desired features such as Lagerauf with form the required precision and thus arrive at the finished product.
- the machining times on the forged part are lengthened by this mechanical reworking, and on the other hand, due to the material removal by the cutting edge
- Manufacturing accuracy reduces the operating weight of the component and the total weight reduced, and thereby
- the method comprises
- Forging in a die wherein during forming one or more tools are introduced into the forging and thereby the material of the forging is displaced so that the predetermined final contour is achieved.
- Pre-forging prefers a semi-finished or almost finished
- the Vorschmieden can consist of one, but also of two or more forging steps, by means of which the forging of the final contour is approximated.
- Material displacement also optimally fills the die "from the inside", resulting in substantially less rejects due to incomplete die filling.
- providing the additional step of forming, compared to the prior art, has advantages both in terms of
- Another advantage is that is displaced by the forming and in particular the insertion of the / the tool material and thus the fiber flow of the material is held parallel to the surfaces (the final contour). This will make the finished
- a mandrel or hollow mandrel By using a mandrel or hollow mandrel high forming forces can be applied, which leads to an efficient
- a hollow mandrel also allows a particularly precise shaping of the forged part at the insertion point and can thus be used particularly effectively for determining the final contour.
- secondary molding elements of the finished forging are formed by the tool (s).
- Forged part surface which forging technology is difficult or impossible to produce by dies (mutually moving die halves), for example, the shots for bearings on truck stub axles.
- dies mutually moving die halves
- the forming is carried out substantially at the temperature of the previous step of pre-forging.
- Mold cavity preferably defines the outer contour of the predetermined final contour, in other words, the die determines the position of the substantially outwardly facing surfaces of the finished forging, while through the tools (for example
- FIG. 1 schematically shows a production method according to the prior art using the example of a steering knuckle
- FIG. 2 shows schematically an example of the method according to the invention for the production of forgings with a
- FIG. 3 shows a comparison of a conventionally produced steering knuckle and one according to the invention
- FIG. 4 shows a perspective view of a lower perspective view
- FIG. 5 shows a radial section through a steering knuckle produced according to the invention, wherein the illustration of FIG
- FIG. 1 schematically shows the sequence of a
- a blank 10 made of steel is first upset, pre-pressed and subjected to a first Vorschmiede Colour
- Forging material is removed so that the forged finished product 10 '' is obtained.
- the finished forged part 10 '' still mechanical, that is machined must be reworked. That at the
- FIG. 2 shows the sequence of an exemplary method for comparison with the conventional method of FIG.
- a blank 20 is first compressed, pre-pressed and forged in two steps ( Figure 2a to d) in order to
- Substantially at forging temperature carried out a deformation of the forging in a die, the mold cavity, the outer contour of the predetermined final contour of the component
- FIG. 3 shows a perspective and sectional view of a comparison between the completely forged and trimmed components. As can be seen in FIG. 3a, this is completed by the conventional method
- the truck steering knuckle according to the invention already has the
- the weight of the finished forged blank which is 29kg, is correspondingly lower. It can not only save about 10% of material but also significantly shorter process times can be achieved.
- the material flows into the initially free mold spaces on the inner surfaces of the dies until the die mold has been filled.
- slightly more material is preferably present in the die at the beginning of the forming, as is required in terms of volume for the final forging.
- the savings in raw material achieved by the method according to the invention can be seen particularly well from the sectional drawing of FIG.
- the reference numeral 22 designates the forged contour produced after the second pre-forging (FIG. 2d), while the reference numeral 23 denotes the final contour after
- Forming process according to the invention that is called after the introduction of the hollow mandrels.
- the volume fraction of the introduced hollow mandrel fills the die starting from the forged smaller forging contour 22 up to the predetermined final contour 23.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020147019436A KR102031596B1 (ko) | 2011-12-16 | 2012-12-17 | 단조 부품을 재성형하기 위한 방법 |
CA2859332A CA2859332C (en) | 2011-12-16 | 2012-12-17 | Method for forming forged parts |
JP2014546565A JP6087372B2 (ja) | 2011-12-16 | 2012-12-17 | ステアリングナックルを製造するための方法 |
US14/365,130 US9375778B2 (en) | 2011-12-16 | 2012-12-17 | Method for forming forged parts |
BR112014014742-6A BR112014014742B1 (pt) | 2011-12-16 | 2012-12-17 | método para produzir uma articulação de direção de um veículo comercial com um contorno final préfornecido |
EP12812572.1A EP2790850B1 (de) | 2011-12-16 | 2012-12-17 | Verfahren zur herstellung eines achsschenkels |
MX2014007088A MX344480B (es) | 2011-12-16 | 2012-12-17 | Método para formar partes forjadas. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011088862.4 | 2011-12-16 | ||
DE102011088862A DE102011088862A1 (de) | 2011-12-16 | 2011-12-16 | Verfahren zum Umformen von Schmiedeteilen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013087924A1 true WO2013087924A1 (de) | 2013-06-20 |
Family
ID=47520923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/075757 WO2013087924A1 (de) | 2011-12-16 | 2012-12-17 | Verfahren zum umformen von schmiedeteilen |
Country Status (9)
Country | Link |
---|---|
US (1) | US9375778B2 (de) |
EP (1) | EP2790850B1 (de) |
JP (1) | JP6087372B2 (de) |
KR (1) | KR102031596B1 (de) |
BR (1) | BR112014014742B1 (de) |
CA (1) | CA2859332C (de) |
DE (1) | DE102011088862A1 (de) |
MX (1) | MX344480B (de) |
WO (1) | WO2013087924A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104607544B (zh) * | 2015-01-16 | 2016-06-22 | 芜湖三联锻造有限公司 | 一种长轴类转向节新型校正模具 |
CN107792173A (zh) * | 2017-09-27 | 2018-03-13 | 湖北三环锻造有限公司 | 与拉杆臂一体化成形的汽车转向节 |
CN108044019A (zh) * | 2017-11-30 | 2018-05-18 | 枣庄远东实业开发总公司 | 一种基于空气锤预坯的汽车转向节立式锻造装置及工艺 |
CN109622845B (zh) * | 2019-02-18 | 2021-07-13 | 湖北三环锻造有限公司 | 一种鼓式转向节预锻件闭式近净成形工艺及模具 |
CN112756530B (zh) * | 2020-12-25 | 2022-07-22 | 章丘市普锐锻压有限公司 | 一种锻压工艺及锻压生产线 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0015648A1 (de) * | 1979-03-05 | 1980-09-17 | Siegfried Kuether | Verfahren zum Herstellen einer Achse |
WO1995034853A1 (en) * | 1994-06-10 | 1995-12-21 | Omni Forge, Inc. | Method for manufacturing flashless metal connecting rod |
EP1134412A2 (de) * | 2000-03-15 | 2001-09-19 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Verfahren und Maschine zur Herstellung eines Hohlkolbens für einen Kompressor durch Schmieden |
US6427326B1 (en) * | 1999-06-17 | 2002-08-06 | Honda Giken Kogyo Kabushiki Kaisha | Method of manufacturing connecting rod |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4321818A (en) * | 1979-10-03 | 1982-03-30 | Kawaski Yukon Kabushiki Kaisha | Closed forging press |
JPS605949Y2 (ja) * | 1980-08-08 | 1985-02-25 | トヨタ自動車株式会社 | 鍛造製品バリ取り仕上装置 |
JPS5853150Y2 (ja) * | 1980-11-14 | 1983-12-03 | トヨタ自動車株式会社 | 鍛造品のためのバリ取り用プレス型 |
JPS6277143A (ja) * | 1985-09-30 | 1987-04-09 | Nissan Motor Co Ltd | 鍛造方法 |
JPH07100210B2 (ja) * | 1986-10-03 | 1995-11-01 | トピ−工業株式会社 | 履帯連結用リンクの製造方法 |
DE3701703A1 (de) * | 1987-01-22 | 1988-08-18 | Doege Eckart | Verfahren und vorrichtung zur herstellung von kegelraedern |
US4910990A (en) * | 1987-06-18 | 1990-03-27 | Delio Ralph D | Apparatus for making substantially forged articles such as tank tread connectors |
JP3239345B2 (ja) * | 1993-03-25 | 2001-12-17 | 東芝ホームテクノ株式会社 | 炊飯器 |
JPH07124680A (ja) * | 1993-10-31 | 1995-05-16 | Riken Tanzou Kk | 鍛造部品及びその製造方法 |
US5516130A (en) * | 1994-12-22 | 1996-05-14 | Interstate Forging Industries Inc. | Forged control arm |
AR001266A1 (es) * | 1995-03-21 | 1997-09-24 | Eaton Corp | Conjunto de rotula de dirección y freno para camiones de trafico pesado o mediano |
-
2011
- 2011-12-16 DE DE102011088862A patent/DE102011088862A1/de not_active Ceased
-
2012
- 2012-12-17 BR BR112014014742-6A patent/BR112014014742B1/pt active IP Right Grant
- 2012-12-17 KR KR1020147019436A patent/KR102031596B1/ko active IP Right Grant
- 2012-12-17 JP JP2014546565A patent/JP6087372B2/ja active Active
- 2012-12-17 US US14/365,130 patent/US9375778B2/en active Active
- 2012-12-17 EP EP12812572.1A patent/EP2790850B1/de active Active
- 2012-12-17 CA CA2859332A patent/CA2859332C/en active Active
- 2012-12-17 MX MX2014007088A patent/MX344480B/es active IP Right Grant
- 2012-12-17 WO PCT/EP2012/075757 patent/WO2013087924A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0015648A1 (de) * | 1979-03-05 | 1980-09-17 | Siegfried Kuether | Verfahren zum Herstellen einer Achse |
WO1995034853A1 (en) * | 1994-06-10 | 1995-12-21 | Omni Forge, Inc. | Method for manufacturing flashless metal connecting rod |
US6427326B1 (en) * | 1999-06-17 | 2002-08-06 | Honda Giken Kogyo Kabushiki Kaisha | Method of manufacturing connecting rod |
EP1134412A2 (de) * | 2000-03-15 | 2001-09-19 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Verfahren und Maschine zur Herstellung eines Hohlkolbens für einen Kompressor durch Schmieden |
Also Published As
Publication number | Publication date |
---|---|
JP6087372B2 (ja) | 2017-03-01 |
MX344480B (es) | 2016-12-16 |
US9375778B2 (en) | 2016-06-28 |
DE102011088862A1 (de) | 2013-06-20 |
US20150013408A1 (en) | 2015-01-15 |
KR20140103154A (ko) | 2014-08-25 |
JP2015500744A (ja) | 2015-01-08 |
EP2790850B1 (de) | 2016-06-01 |
BR112014014742A2 (pt) | 2017-06-13 |
CA2859332C (en) | 2020-01-21 |
CA2859332A1 (en) | 2013-06-20 |
KR102031596B1 (ko) | 2019-11-08 |
BR112014014742B1 (pt) | 2020-10-13 |
EP2790850A1 (de) | 2014-10-22 |
MX2014007088A (es) | 2014-08-01 |
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