GB2091141A - Manufacture of axle bracket halves - Google Patents
Manufacture of axle bracket halves Download PDFInfo
- Publication number
- GB2091141A GB2091141A GB8201102A GB8201102A GB2091141A GB 2091141 A GB2091141 A GB 2091141A GB 8201102 A GB8201102 A GB 8201102A GB 8201102 A GB8201102 A GB 8201102A GB 2091141 A GB2091141 A GB 2091141A
- Authority
- GB
- United Kingdom
- Prior art keywords
- region
- depression
- axle bracket
- shank
- heating
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000001125 extrusion Methods 0.000 claims abstract description 12
- 238000001192 hot extrusion Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 5
- 230000008719 thickening Effects 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000004080 punching Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000004075 alteration Effects 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 239000011343 solid material Substances 0.000 claims description 2
Classifications
-
- 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
- B21K1/74—Making machine elements forked members or members with two or more limbs, e.g. U-bolts, anchors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Vehicle Body Suspensions (AREA)
- Extrusion Of Metal (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to a method for the manufacture of axle bracket halves. According to the invention, an axle bracket half is produced by extrusion moulding of an initial body, in which through changes in the cross- section of the shank region b the moment of resistance of the axle half can be increased with a saving of material. In the method of the invention, first a shank region b and a depression region c are formed from the ingot through hot-extrusion. The depression region c is then expanded and extruded into a rectangular shape and the shank region b formed into a square cross-section. In a final extrusion step the depression region c takes its finished form with local wall thickening. Openings for the drive- and cover side of the axle half can be punched out subsequently. <IMAGE>
Description
SPECIFICATION
Method for the manufacture of axle bracket halves
The invention relates to a method for the manufacture of axle bracket halves for motor vehicles, from a hot-extruded initial workpiece.
Axle bracket halves have been manufactured by the welding of half shells, which were extruded into the finished shape; see German published Application Nos: 2549017 and 1949741. It is also known to manufacture axle brackets from aluminium by extruding it in six forming operations; see French
Patent Specification No: 596,950. Further, it is known to work the free ends of axle tubes by foreging; see
German published Application No: 22 26304.
The present invention seeks to provide a method for the manufacture of axle bracket halves through extrusion moulding of the initial body, by which through changing the cross-section of the shank region, a saving of material is achieved and, at the same time, an increase in the moment of resistance.
To this end, the method of the invention comprises a) producing an ingot having a stub region, a shank region, and a depression region with a greater wall thickness than the shank region, by hot extrusion; b) cylindrically expanding the depression region, square forming the shank region, and perforating the stub region in the same heating; c) extruding the depression region into a rectangular shape, with the simultaneous punching out of lateral recesses; and d) further extruding the depression region with local wall thickening in a second heating.
Normally, different openings are punched out for the drive and cover side immediately after the further extrusion of the depression region, and in the same heating; and it is also preferred that the inital formation step; step b) is carried out at the same heating stage as the hot extrusion.
Axle bracket halves made in accordance with the invention are usually connected by welding of the two halves in the depression centre through a central seam in a known manner.
The primary advantage of methods according to the invention lies in that the most substantial part of the manufacture takes place in one heating according to the extrusion moulding principle, to which in the second heating only the final formation of the depression shape is added. The square shape of the shank section brings about a considerable saving on material through the reduction in wall thickness in this region with an improved moment of resistance in comparison with the round cross-section.
The invention will now be described by way of example and with reference to the accompanying schematic drawing wherein:
Figure 1 shows the initial workpiece after extrusion moulding of the ingot;
Figure 2 and 3 show the workpiece, further formed in stages in the same heating;
Figure 4 and 5 show the workpiece after the first and second forming process in the second heating; and
Figure 6 shows the finished axle bracket half after punching out the various depression openings.
The workpiece 1, formed in the drawings in successive process steps is subdivided into the stub region a, the shank region b and the depression region c.
Figures 1, 2 and 3 show the process steps which take place in the first heating, with the alteration of the regions a, band c.
In Figure 1, the stub region a still consists of solid material, and the shank region b and depression region care round.
In the second forming region Figure 2, the stub region a is perforated, the shank region b is pressed square and the depresion region c is expanded round.
In Figure 3 the depression region c becomes rectangular with simultaneous punching out of the recesses.
Figures 4 and 5 show the deformations of the depression region in the second heating with preliminary and final extrusion.
In Figure 6 the finished axle bracket half is shown after the punching out of different openings for the drive- and cover side in the depression region c.
1. A method of manufacturing an axle bracket half, comprising a) producing an ingot having a stub region a shank region, and a depression region with a greater wall thickness than the shank region, by hot extrusion;
b) cylindrically expanding the depression region square forming the shank region, and perforating the stub region in the same heating;
c) extruding the depression region into a rectangular shape, with the simultaneous punching out of lateral recesses; and
d) further extruding the depression region with local wall thickening in a second heating.
2. A method according to Claim 1 wherein step b) is carried out in the same heating stage as the hot extrusion.
3. A method of manufacturing an axle bracket half substantially as described herein with reference to the accompanying drawing.
4. An axle bracket half manufactured by a method according to any preceding Claim.
5. An axle bracket comprising two halves according to Claim 4 connected to each other by a central welding seam.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (5)
1. A method of manufacturing an axle bracket half, comprising a) producing an ingot having a stub region a shank region, and a depression region with a greater wall thickness than the shank region, by hot extrusion;
b) cylindrically expanding the depression region square forming the shank region, and perforating the stub region in the same heating;
c) extruding the depression region into a rectangular shape, with the simultaneous punching out of lateral recesses; and
d) further extruding the depression region with local wall thickening in a second heating.
2. A method according to Claim 1 wherein step b) is carried out in the same heating stage as the hot extrusion.
3. A method of manufacturing an axle bracket half substantially as described herein with reference to the accompanying drawing.
4. An axle bracket half manufactured by a method according to any preceding Claim.
5. An axle bracket comprising two halves according to Claim 4 connected to each other by a central welding seam.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3102236A DE3102236C2 (en) | 1981-01-20 | 1981-01-20 | Process for the production of axle bridge halves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2091141A true GB2091141A (en) | 1982-07-28 |
| GB2091141B GB2091141B (en) | 1984-10-17 |
Family
ID=6123228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8201102A Expired GB2091141B (en) | 1981-01-20 | 1982-01-15 | Manufacture of axle bracket halves |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT376381B (en) |
| BE (1) | BE891792A (en) |
| DE (1) | DE3102236C2 (en) |
| ES (1) | ES508532A0 (en) |
| FR (1) | FR2498096B1 (en) |
| GB (1) | GB2091141B (en) |
| IT (1) | IT1140196B (en) |
| NL (1) | NL8105686A (en) |
| SE (1) | SE448354B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0125416A3 (en) * | 1983-05-06 | 1985-11-27 | Lutkenhues, Bernhard, Dipl.-Kaufm. | Method of making a cylindrical clamping wedge, and die for making the cylindrical clamping wedge |
| FR2728816A1 (en) * | 1994-12-29 | 1996-07-05 | Dana Corp | Forked shaft manufacturing procedure |
| CN109715313A (en) * | 2016-10-11 | 2019-05-03 | 李瀁和 | Utilize the method for pipe manufacture universal joint |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3742717C1 (en) * | 1987-12-14 | 1989-02-09 | Mannesmann Ag | Method of manufacturing a motor-vehicle axle |
| CN109127999B (en) * | 2018-10-31 | 2020-03-27 | 中冶陕压重工设备有限公司 | Forging method of concave gear shaft |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3564896A (en) * | 1965-09-03 | 1971-02-23 | North American Rockwell | Method of making axle beam |
| DE2049889C3 (en) * | 1970-10-10 | 1979-01-25 | Eumuco Ag Fuer Maschinenbau, 5090 Leverkusen | Method for producing a half-shell bridge half for an axle bridge on motor vehicles, in particular trucks |
| DE2805729C2 (en) * | 1978-02-08 | 1986-02-20 | Mannesmann AG, 4000 Düsseldorf | Process for the production of pre-workpieces for axle beam halves of commercial vehicles |
| DE2905961A1 (en) * | 1979-02-13 | 1980-08-14 | Mannesmann Ag | Mfr. of axle housings by extrusion - has half axle housing extruded in stages giving better grain flow and reduces amount of welding |
| DE3004132C2 (en) * | 1980-02-01 | 1985-06-20 | Mannesmann AG, 4000 Düsseldorf | Method of manufacturing one-piece hollow motor vehicle axles |
-
1981
- 1981-01-20 DE DE3102236A patent/DE3102236C2/en not_active Expired
- 1981-12-15 SE SE8107501A patent/SE448354B/en not_active IP Right Cessation
- 1981-12-17 NL NL8105686A patent/NL8105686A/en not_active Application Discontinuation
- 1981-12-28 IT IT25872/81A patent/IT1140196B/en active
- 1981-12-30 AT AT0564281A patent/AT376381B/en not_active IP Right Cessation
-
1982
- 1982-01-05 ES ES508532A patent/ES508532A0/en active Granted
- 1982-01-07 FR FR8200147A patent/FR2498096B1/en not_active Expired
- 1982-01-15 BE BE0/207064A patent/BE891792A/en not_active IP Right Cessation
- 1982-01-15 GB GB8201102A patent/GB2091141B/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0125416A3 (en) * | 1983-05-06 | 1985-11-27 | Lutkenhues, Bernhard, Dipl.-Kaufm. | Method of making a cylindrical clamping wedge, and die for making the cylindrical clamping wedge |
| FR2728816A1 (en) * | 1994-12-29 | 1996-07-05 | Dana Corp | Forked shaft manufacturing procedure |
| US6105413A (en) * | 1994-12-29 | 2000-08-22 | Dana Corporation | Method of forming a one piece steering shaft member |
| US6257041B1 (en) | 1994-12-29 | 2001-07-10 | Spicer Driveshaft, Inc. | Method of forming a one-piece steering shaft member |
| CN109715313A (en) * | 2016-10-11 | 2019-05-03 | 李瀁和 | Utilize the method for pipe manufacture universal joint |
Also Published As
| Publication number | Publication date |
|---|---|
| SE8107501L (en) | 1982-07-21 |
| BE891792A (en) | 1982-04-30 |
| IT1140196B (en) | 1986-09-24 |
| IT8125872A0 (en) | 1981-12-28 |
| GB2091141B (en) | 1984-10-17 |
| FR2498096B1 (en) | 1986-02-21 |
| DE3102236C2 (en) | 1986-01-09 |
| SE448354B (en) | 1987-02-16 |
| ES8302496A1 (en) | 1982-12-01 |
| ATA564281A (en) | 1984-04-15 |
| AT376381B (en) | 1984-11-12 |
| DE3102236A1 (en) | 1982-08-05 |
| NL8105686A (en) | 1982-08-16 |
| FR2498096A1 (en) | 1982-07-23 |
| ES508532A0 (en) | 1982-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |