NL7507288A - Screw thread forming die production process - applies shaping tool to generate different pitch between other grooved sections - Google Patents

Screw thread forming die production process - applies shaping tool to generate different pitch between other grooved sections

Info

Publication number
NL7507288A
NL7507288A NL7507288A NL7507288A NL7507288A NL 7507288 A NL7507288 A NL 7507288A NL 7507288 A NL7507288 A NL 7507288A NL 7507288 A NL7507288 A NL 7507288A NL 7507288 A NL7507288 A NL 7507288A
Authority
NL
Netherlands
Prior art keywords
shaping tool
screw thread
forming die
production process
different pitch
Prior art date
Application number
NL7507288A
Other languages
Dutch (nl)
Original Assignee
Herbert Ltd A
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 Herbert Ltd A filed Critical Herbert Ltd A
Priority to NL7507288A priority Critical patent/NL7507288A/en
Publication of NL7507288A publication Critical patent/NL7507288A/en

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
    • B21H3/025—Rolling locking screws

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

The process is for the production of screw thread forming dies. A rotary shaping tool is formed, with first and second groups of alternate lands and grooves of the same pitch on a cylindrical surface. The shaping tool is so applied to the work as to form between the two groups an additional land (8) or groove of different pitch. The tool thus produced is then used to produce the thread-forming die, or an intermediate shaping tool to produce the latter. The additional land or groove can be either of coarser or finer pitch than the rest, being produced in two parts.
NL7507288A 1975-06-19 1975-06-19 Screw thread forming die production process - applies shaping tool to generate different pitch between other grooved sections NL7507288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7507288A NL7507288A (en) 1975-06-19 1975-06-19 Screw thread forming die production process - applies shaping tool to generate different pitch between other grooved sections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7507288A NL7507288A (en) 1975-06-19 1975-06-19 Screw thread forming die production process - applies shaping tool to generate different pitch between other grooved sections

Publications (1)

Publication Number Publication Date
NL7507288A true NL7507288A (en) 1976-12-21

Family

ID=19823980

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7507288A NL7507288A (en) 1975-06-19 1975-06-19 Screw thread forming die production process - applies shaping tool to generate different pitch between other grooved sections

Country Status (1)

Country Link
NL (1) NL7507288A (en)

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Legal Events

Date Code Title Description
BV The patent application has lapsed