JPS5614047A - Working method by upsetter - Google Patents
Working method by upsetterInfo
- Publication number
- JPS5614047A JPS5614047A JP9084879A JP9084879A JPS5614047A JP S5614047 A JPS5614047 A JP S5614047A JP 9084879 A JP9084879 A JP 9084879A JP 9084879 A JP9084879 A JP 9084879A JP S5614047 A JPS5614047 A JP S5614047A
- Authority
- JP
- Japan
- Prior art keywords
- upsetter
- diameter part
- blank material
- circular
- small diameter
- 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
Landscapes
- Forging (AREA)
Abstract
PURPOSE: To eliminate a preliminary upsetter working process, reduce the size of equipment and improve production efficiency by subjecting a blank material beforehand to drawing and forming to work it into dissimilar diameter sectional shapes of an identical shape then subjecting the same to upsetter working.
CONSTITUTION: The outside diameter of a round blank material (a) is continuously formed to a circular part A and a flat part B by the passage through caliber rolls 21 of the previous stage, thence, the circular part A is formed by a circular hole 29 and the flat part B is drawn by a circular hole 30, in a pair of caliber rolls 22 of the next stage, whereby these are continuously formed to dissimilar diameter sectional shapes of a large diameter part A' and a small diameter part B' having a similar figure, at predetermined pitch intervals. This round blank material (a) is cut at every pitch unit having the large diameter part A' and the small diameter part B' by a cutting die 32 and a cutter 33. In the process II and the process III, the small diameter part B' is inserted into an upsetting die 34; at the same time, the large diameter part A' is preliminarily upsetter worked by a punch 35. In the process IV, these are upsetter worked by a final punch 36 and in the process V, they are subjected to deburring, whereby the forging (a'') is produced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9084879A JPS5614047A (en) | 1979-07-16 | 1979-07-16 | Working method by upsetter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9084879A JPS5614047A (en) | 1979-07-16 | 1979-07-16 | Working method by upsetter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5614047A true JPS5614047A (en) | 1981-02-10 |
| JPS5649168B2 JPS5649168B2 (en) | 1981-11-20 |
Family
ID=14009995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9084879A Granted JPS5614047A (en) | 1979-07-16 | 1979-07-16 | Working method by upsetter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5614047A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006255778A (en) * | 2005-03-14 | 2006-09-28 | Sakamura Mach Co Ltd | Method for simultaneously heading-forming washer and bolt |
| JP2008023531A (en) * | 2006-07-18 | 2008-02-07 | Kobe Steel Ltd | Method for producing bolt, bolt, shape material for bolt, device for molding shape material for bolt and method for molding shape material for bolt |
-
1979
- 1979-07-16 JP JP9084879A patent/JPS5614047A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006255778A (en) * | 2005-03-14 | 2006-09-28 | Sakamura Mach Co Ltd | Method for simultaneously heading-forming washer and bolt |
| JP2008023531A (en) * | 2006-07-18 | 2008-02-07 | Kobe Steel Ltd | Method for producing bolt, bolt, shape material for bolt, device for molding shape material for bolt and method for molding shape material for bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5649168B2 (en) | 1981-11-20 |
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