GB1342644A - Method of making thread-rolling dies - Google Patents

Method of making thread-rolling dies

Info

Publication number
GB1342644A
GB1342644A GB2065471A GB2065471A GB1342644A GB 1342644 A GB1342644 A GB 1342644A GB 2065471 A GB2065471 A GB 2065471A GB 2065471 A GB2065471 A GB 2065471A GB 1342644 A GB1342644 A GB 1342644A
Authority
GB
United Kingdom
Prior art keywords
screw
thread
sections
rolling
roll
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
Application number
GB2065471A
Other languages
English (en)
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.)
NAT LEAD CO
NL Industries Inc
Original Assignee
NAT LEAD CO
NL Industries Inc
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 NAT LEAD CO, NL Industries Inc filed Critical NAT LEAD CO
Publication of GB1342644A publication Critical patent/GB1342644A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/027—Rolling of self-tapping screws

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Turning (AREA)
GB2065471A 1970-01-30 1971-04-19 Method of making thread-rolling dies Expired GB1342644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US728070A 1970-01-30 1970-01-30

Publications (1)

Publication Number Publication Date
GB1342644A true GB1342644A (en) 1974-01-03

Family

ID=21725243

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2065471A Expired GB1342644A (en) 1970-01-30 1971-04-19 Method of making thread-rolling dies

Country Status (10)

Country Link
JP (1) JPS5218142B1 (es)
BE (1) BE762213A (es)
CA (1) CA963209A (es)
CH (1) CH536676A (es)
DE (1) DE2104297A1 (es)
FR (1) FR2077175A5 (es)
GB (1) GB1342644A (es)
NL (1) NL7101205A (es)
SE (1) SE409297B (es)
ZA (1) ZA71559B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100381249C (zh) * 2006-05-15 2008-04-16 浙江大学 自动排序上料机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535499A1 (de) * 1975-08-08 1977-02-17 Standard Pressed Steel Co Werkzeug zum gewinderollen
DE2703433A1 (de) * 1977-01-28 1978-12-07 Schumacher Wilhelm Kg Gewindeformende schraube sowie verfahren zum herstellen derselben und walzbacke zur durchfuehrung des verfahrens
DE29818546U1 (de) 1998-10-17 1999-01-28 Werkzeugtechnik Niederstetten GmbH & Co. KG, 97996 Niederstetten Flachwalzbacke

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100381249C (zh) * 2006-05-15 2008-04-16 浙江大学 自动排序上料机

Also Published As

Publication number Publication date
CH536676A (fr) 1973-05-15
DE2104297A1 (de) 1971-08-12
SE409297B (sv) 1979-08-13
NL7101205A (es) 1971-08-03
CA963209A (en) 1975-02-25
BE762213A (fr) 1971-07-29
ZA71559B (en) 1972-03-29
FR2077175A5 (es) 1971-10-15
JPS5218142B1 (es) 1977-05-19

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years