JPS57193223A - Manufacture of blank material for nut made of aluminum alloy - Google Patents
Manufacture of blank material for nut made of aluminum alloyInfo
- Publication number
- JPS57193223A JPS57193223A JP7979081A JP7979081A JPS57193223A JP S57193223 A JPS57193223 A JP S57193223A JP 7979081 A JP7979081 A JP 7979081A JP 7979081 A JP7979081 A JP 7979081A JP S57193223 A JPS57193223 A JP S57193223A
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- die
- round pipe
- blank material
- working
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Metal Extraction Processes (AREA)
Abstract
PURPOSE:To manufacture a blank material for a nut, which is seamless and excellent in its internal formation, at a low cost, by extruding and working an Al alloy to a seamless round pipe by hot rolling, and after that, drawing and working it by cold rolling so that the outside of the round pipe and its inside become a regular hexagon and a true circle, respectively. CONSTITUTION:A heated Al alloy billet 3 is inserted into a container 2 which has installed a die 1 to its one end, is pressed by a ram 5 provided with a mandrel 4 on its tip, and is worked to a seamless round pipe 6 by a mandrel extruding method which extrudes the billet 3 from between the die 1 and the mandrel 4. Subsequently, this round pipe 6 is subjected to cold drawing working through a back die 8 and a bull die 9 by use of a true circle-like mandrel 7 having a prescribed outside diameter, and is finished to a blank material 10 for tubular nut whose outside and inside have been worked to a regular hexagon and a true circle, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7979081A JPS57193223A (en) | 1981-05-26 | 1981-05-26 | Manufacture of blank material for nut made of aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7979081A JPS57193223A (en) | 1981-05-26 | 1981-05-26 | Manufacture of blank material for nut made of aluminum alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57193223A true JPS57193223A (en) | 1982-11-27 |
Family
ID=13700004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7979081A Pending JPS57193223A (en) | 1981-05-26 | 1981-05-26 | Manufacture of blank material for nut made of aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57193223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0522891A (en) * | 1991-07-05 | 1993-01-29 | Mitsubishi Electric Corp | Output terminal system of ac dynamo for vehicle |
-
1981
- 1981-05-26 JP JP7979081A patent/JPS57193223A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0522891A (en) * | 1991-07-05 | 1993-01-29 | Mitsubishi Electric Corp | Output terminal system of ac dynamo for vehicle |
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