JPS55158809A - Manufacture of roll forging roll - Google Patents
Manufacture of roll forging rollInfo
- Publication number
- JPS55158809A JPS55158809A JP6710179A JP6710179A JPS55158809A JP S55158809 A JPS55158809 A JP S55158809A JP 6710179 A JP6710179 A JP 6710179A JP 6710179 A JP6710179 A JP 6710179A JP S55158809 A JPS55158809 A JP S55158809A
- Authority
- JP
- Japan
- Prior art keywords
- blank
- roll
- drum
- compression force
- parts
- 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.)
- Pending
Links
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
PURPOSE: To prevent generation of cracks in the core of the roll drum, by carrying out the thread rolling of a caliber groove using the roll forging parts, under the condition that the roll blank is being loaded with axial compression force from its both ends.
CONSTITUTION: The drum of the roll blank 1 is heated to high temperatures suitable for the plastic forming work, and on the other hand, the both end necks are held at as low temperatures as possible to secure the rigidity. At thread rolling the caliber groove 3 on the outer circumference of the drum of the blank 1 by the forming rollers 2, 2', to be driven to rotate respectively, the blank 1 is driven to rotate round its axis through the bearing parts 5, 5, like as the chuck, etc., for bearing the blank 1 at its both ends, and besides, and axial compression force is loaded on whole blank 1 form these parts 5, 5, so as to press the blank 1 from both ends. By this compression load, the tensile stress to be generated in the drum core of the blank 1 is reduced or is converted into a compression stress; and under this condition, the roll forging is carried out. The magnitude of this compression force may be similar to the magnitude of the paress forced given by the forming rollers 2, 2'.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6710179A JPS55158809A (en) | 1979-05-29 | 1979-05-29 | Manufacture of roll forging roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6710179A JPS55158809A (en) | 1979-05-29 | 1979-05-29 | Manufacture of roll forging roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55158809A true JPS55158809A (en) | 1980-12-10 |
Family
ID=13335150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6710179A Pending JPS55158809A (en) | 1979-05-29 | 1979-05-29 | Manufacture of roll forging roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55158809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7866198B2 (en) * | 2008-03-26 | 2011-01-11 | American Axle & Manufacturing, Inc. | Method of producing a stepped shaft |
-
1979
- 1979-05-29 JP JP6710179A patent/JPS55158809A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7866198B2 (en) * | 2008-03-26 | 2011-01-11 | American Axle & Manufacturing, Inc. | Method of producing a stepped shaft |
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