FR2321340B1 - - Google Patents

Info

Publication number
FR2321340B1
FR2321340B1 FR7625384A FR7625384A FR2321340B1 FR 2321340 B1 FR2321340 B1 FR 2321340B1 FR 7625384 A FR7625384 A FR 7625384A FR 7625384 A FR7625384 A FR 7625384A FR 2321340 B1 FR2321340 B1 FR 2321340B1
Authority
FR
France
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
Application number
FR7625384A
Other languages
French (fr)
Other versions
FR2321340A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of FR2321340A1 publication Critical patent/FR2321340A1/fr
Application granted granted Critical
Publication of FR2321340B1 publication Critical patent/FR2321340B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/08—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Forging (AREA)
FR7625384A 1975-08-22 1976-08-20 Procede de percage par laminage avec poussage Granted FR2321340A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50102348A JPS5224970A (en) 1975-08-22 1975-08-22 Method of press roll boring

Publications (2)

Publication Number Publication Date
FR2321340A1 FR2321340A1 (fr) 1977-03-18
FR2321340B1 true FR2321340B1 (ja) 1979-01-12

Family

ID=14324973

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625384A Granted FR2321340A1 (fr) 1975-08-22 1976-08-20 Procede de percage par laminage avec poussage

Country Status (9)

Country Link
JP (1) JPS5224970A (ja)
BR (1) BR7605525A (ja)
CA (1) CA1046308A (ja)
DE (1) DE2637542A1 (ja)
FR (1) FR2321340A1 (ja)
GB (1) GB1554753A (ja)
IT (1) IT1062264B (ja)
RO (1) RO71124A (ja)
SU (1) SU1022652A3 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132453A (en) * 1977-04-25 1978-11-18 Sumitomo Metal Ind Ltd Piercing method in press piercing mill
JPS6289110U (ja) * 1985-11-25 1987-06-08

Also Published As

Publication number Publication date
IT1062264B (it) 1984-02-01
CA1046308A (en) 1979-01-16
JPS5224970A (en) 1977-02-24
BR7605525A (pt) 1977-08-09
RO71124A (ro) 1981-11-04
JPS563124B2 (ja) 1981-01-23
SU1022652A3 (ru) 1983-06-07
GB1554753A (en) 1979-10-31
FR2321340A1 (fr) 1977-03-18
DE2637542A1 (de) 1977-02-24

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Legal Events

Date Code Title Description
ST Notification of lapse