GB894896A - Improved method of making spring leaves - Google Patents
Improved method of making spring leavesInfo
- Publication number
- GB894896A GB894896A GB42998/60A GB4299860A GB894896A GB 894896 A GB894896 A GB 894896A GB 42998/60 A GB42998/60 A GB 42998/60A GB 4299860 A GB4299860 A GB 4299860A GB 894896 A GB894896 A GB 894896A
- Authority
- GB
- United Kingdom
- Prior art keywords
- leaf
- bar
- forging
- uniform
- dec
- 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.)
- Expired
Links
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
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
894,896. Forging springs. OPEL A.G., ADAM. Dec. 14, 1960 [Dec. 24, 1959], No. 42998/60. Classes 83 (2) and 83 (4). A spring leaf is made by pressing a bar 10 to the required transverse cross-sectional shape and dimensions in a die 16, 17. The bar of drawn or or rolled stock, may be of uniform section throughout, but is preferably of circular section shaped by machining or hammering to provide tapering portions 12, 13 and uniform end portions 14, 15. After heating to forging temperature, preferably in a protective or reducing atmosphere, the bar is forged to uniform or tapering thickness and with or without camber in the hammer or press 20, the eyes 23, 24, Fig. 10, are then bent over and the leaf hardened and tempered. All these operations may be performed in one heat or the leaf may be re-heated after forging or after bending the ends. Finally the leaf may be shot-peened or sand-blasted and coated to prevent corrosion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE894896X | 1959-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB894896A true GB894896A (en) | 1962-04-26 |
Family
ID=6847436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB42998/60A Expired GB894896A (en) | 1959-12-24 | 1960-12-14 | Improved method of making spring leaves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB894896A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9573432B2 (en) | 2013-10-01 | 2017-02-21 | Hendrickson Usa, L.L.C. | Leaf spring and method of manufacture thereof having sections with different levels of through hardness |
-
1960
- 1960-12-14 GB GB42998/60A patent/GB894896A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9573432B2 (en) | 2013-10-01 | 2017-02-21 | Hendrickson Usa, L.L.C. | Leaf spring and method of manufacture thereof having sections with different levels of through hardness |
| US9890440B2 (en) | 2013-10-01 | 2018-02-13 | Hendrickson Usa, L.L.C. | Leaf spring and method of manufacture thereof having sections with different levels of through hardness |
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