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HUH3386A - Method and apparatus for producing cold-extruded fastening elements of hollow end - Google Patents

Method and apparatus for producing cold-extruded fastening elements of hollow end

Info

Publication number
HUH3386A
HUH3386A HU250189A HU250189A HUH3386A HU H3386 A HUH3386 A HU H3386A HU 250189 A HU250189 A HU 250189A HU 250189 A HU250189 A HU 250189A HU H3386 A HUH3386 A HU H3386A
Authority
HU
Hungary
Prior art keywords
tool
forming
coupling
cold forming
head
Prior art date
Application number
HU250189A
Other languages
Hungarian (hu)
Inventor
Imre Arva
Mihaly Balogh
Czako Istvan H
Original Assignee
Imre Arva
Mihaly Balogh
Czako Istvan H
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 Imre Arva, Mihaly Balogh, Czako Istvan H filed Critical Imre Arva
Priority to HU250189A priority Critical patent/HUH3386A/en
Publication of HUH3386A publication Critical patent/HUH3386A/en

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  • Forging (AREA)

Abstract

The method involves the bar used as the base material is straightened, cut to length and positioned in front of the forming tool. - In some cases it is pre-formed before its head is shaped. - Meanwhile, the end of the coupling is supported, then the hollow end is formed and finally the finished coupling is removed from the tool. The method is characterised by cold forming the desired hollow shape with the tool closed. - After opening the housing tool the cold forming tool together with the complete coupling is fed foward and the coupling is removed by a mechanism. - The proposed equipment comprises straightener, cutting and forming tools (the last item includes housing, head forming, cold forming tools and support mechanism) and a mechanism for removing the complete workpiece and the necessary drive and control units. The equipment is characterised by a single supporting-cold forming-workpiece removing mandrel (3) locatated on the side of the housing tool (2) opposite the head forming tool (8).
HU250189A 1989-05-19 1989-05-19 Method and apparatus for producing cold-extruded fastening elements of hollow end HUH3386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HU250189A HUH3386A (en) 1989-05-19 1989-05-19 Method and apparatus for producing cold-extruded fastening elements of hollow end

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU250189A HUH3386A (en) 1989-05-19 1989-05-19 Method and apparatus for producing cold-extruded fastening elements of hollow end

Publications (1)

Publication Number Publication Date
HUH3386A true HUH3386A (en) 1990-02-28

Family

ID=10959709

Family Applications (1)

Application Number Title Priority Date Filing Date
HU250189A HUH3386A (en) 1989-05-19 1989-05-19 Method and apparatus for producing cold-extruded fastening elements of hollow end

Country Status (1)

Country Link
HU (1) HUH3386A (en)

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Legal Events

Date Code Title Description
BFC9 Refusal of application