JPH0479725B2 - - Google Patents
Info
- Publication number
- JPH0479725B2 JPH0479725B2 JP58047700A JP4770083A JPH0479725B2 JP H0479725 B2 JPH0479725 B2 JP H0479725B2 JP 58047700 A JP58047700 A JP 58047700A JP 4770083 A JP4770083 A JP 4770083A JP H0479725 B2 JPH0479725 B2 JP H0479725B2
- Authority
- JP
- Japan
- Prior art keywords
- center hole
- billet
- rear end
- drilling
- end surface
- 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 - Lifetime
Links
- 238000005553 drilling Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000003923 scrap metal Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Metal Extraction Processes (AREA)
- Heat Treatment Of Steel (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4770083A JPS59174203A (ja) | 1983-03-22 | 1983-03-22 | 継目無金属管の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4770083A JPS59174203A (ja) | 1983-03-22 | 1983-03-22 | 継目無金属管の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59174203A JPS59174203A (ja) | 1984-10-02 |
JPH0479725B2 true JPH0479725B2 (pt) | 1992-12-16 |
Family
ID=12782566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4770083A Granted JPS59174203A (ja) | 1983-03-22 | 1983-03-22 | 継目無金属管の製造方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59174203A (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016024052A1 (fr) | 2014-08-13 | 2016-02-18 | Peugeot Citroen Automobiles Sa | Structure permettant de fixer des composants sur le berceau moteur sans prolonges d'un vehicule |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004082174A (ja) * | 2002-08-28 | 2004-03-18 | Jfe Steel Kk | 継目無鋼管の製造方法 |
EP1990107A4 (en) * | 2006-03-01 | 2012-05-30 | Sumitomo Metal Ind | PROCESS FOR THE PRODUCTION OF A SOLDER-FREE SOLDER PIPE |
WO2009122620A1 (ja) * | 2008-03-31 | 2009-10-08 | 住友金属工業株式会社 | 継目無金属管の製造方法及びそれに用いられるポンチ |
WO2018230450A1 (ja) * | 2017-06-12 | 2018-12-20 | 新日鐵住金株式会社 | 継目無金属管の製造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5372763A (en) * | 1976-12-10 | 1978-06-28 | Nippon Steel Corp | Method and apparatus for forming center hole during making seamless steel pipe |
-
1983
- 1983-03-22 JP JP4770083A patent/JPS59174203A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5372763A (en) * | 1976-12-10 | 1978-06-28 | Nippon Steel Corp | Method and apparatus for forming center hole during making seamless steel pipe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016024052A1 (fr) | 2014-08-13 | 2016-02-18 | Peugeot Citroen Automobiles Sa | Structure permettant de fixer des composants sur le berceau moteur sans prolonges d'un vehicule |
Also Published As
Publication number | Publication date |
---|---|
JPS59174203A (ja) | 1984-10-02 |
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