EP2135697A3 - Method for manufacturing hole saws - Google Patents

Method for manufacturing hole saws Download PDF

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Publication number
EP2135697A3
EP2135697A3 EP09007874.2A EP09007874A EP2135697A3 EP 2135697 A3 EP2135697 A3 EP 2135697A3 EP 09007874 A EP09007874 A EP 09007874A EP 2135697 A3 EP2135697 A3 EP 2135697A3
Authority
EP
European Patent Office
Prior art keywords
hardening
saw teeth
hole saws
ductile
hardened
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.)
Withdrawn
Application number
EP09007874.2A
Other languages
German (de)
French (fr)
Other versions
EP2135697A2 (en
Inventor
Hans R. Haas
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.)
Haas Maschinenbau GmbH
Original Assignee
Haas Maschinenbau GmbH
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 Haas Maschinenbau GmbH filed Critical Haas Maschinenbau GmbH
Publication of EP2135697A2 publication Critical patent/EP2135697A2/en
Publication of EP2135697A3 publication Critical patent/EP2135697A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D65/00—Making tools for sawing machines or sawing devices for use in cutting any kind of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Lochsägen (1) mit kreiszylindrischem Grundkörper (2), welcher aus einem duktilen und gehärteten Flachmaterial (3) geformt ist und durch Wärmebehandlung gehärtete Sägezähne (4) aufweist. Der Platzbedarf der Härtevorrichtung zum Härten der Sägezähne wird verringert, indem das duktile Flachmaterial mit den daran befindlichen Sägezähnen vor dem Zuschnitt auf Länge im Durchlaufverfahren im Querbereich zwischen Zahnspitzenlinie (5) und einer unterhalb der Zahnfußtiefe angeordneten Verbindungslinie (6) gehärtet wird.

Figure imgaf001
The present invention relates to a method for the production of hole saws (1) with a circular cylindrical basic body (2), which is formed from a ductile and hardened flat material (3) and has saw teeth (4) hardened by heat treatment. The space requirement of the hardening device for hardening the saw teeth is reduced by hardening the ductile flat material with the saw teeth thereon before cutting to length in a continuous process in the transverse region between the tooth tip line (5) and a connection line (6) arranged below the tooth root depth.
Figure imgaf001
EP09007874.2A 2008-06-19 2009-06-16 Method for manufacturing hole saws Withdrawn EP2135697A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810029249 DE102008029249A1 (en) 2008-06-19 2008-06-19 Method for producing hole saws

Publications (2)

Publication Number Publication Date
EP2135697A2 EP2135697A2 (en) 2009-12-23
EP2135697A3 true EP2135697A3 (en) 2014-12-03

Family

ID=41061245

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09007874.2A Withdrawn EP2135697A3 (en) 2008-06-19 2009-06-16 Method for manufacturing hole saws

Country Status (2)

Country Link
EP (1) EP2135697A3 (en)
DE (1) DE102008029249A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995171A (en) * 1955-12-14 1961-08-08 Hausler Christian Machine for bending metal plates
JPS5031111B1 (en) * 1968-12-21 1975-10-07
US3920173A (en) * 1972-04-24 1975-11-18 Retmeca Sa Method and machine for manufacturing shaped parts from flat sheet metal
WO2004112998A2 (en) * 2003-06-18 2004-12-29 Irwin Industrial Tool Company Sheet metal hole cutter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995171A (en) * 1955-12-14 1961-08-08 Hausler Christian Machine for bending metal plates
JPS5031111B1 (en) * 1968-12-21 1975-10-07
US3920173A (en) * 1972-04-24 1975-11-18 Retmeca Sa Method and machine for manufacturing shaped parts from flat sheet metal
WO2004112998A2 (en) * 2003-06-18 2004-12-29 Irwin Industrial Tool Company Sheet metal hole cutter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FLEHMIG T ET AL: "T3 profiling technology - a precondition for the increased use of hollow steel sections in motor vehicles", THYSSENKRUPP TECHFORUM - ENGLISH EDITION, THYSSENKRUPP, DUSSELDORF, DE, no. 1, 1 January 2007 (2007-01-01), pages 14 - 21, XP001519900, ISSN: 1612-2771 *

Also Published As

Publication number Publication date
EP2135697A2 (en) 2009-12-23
DE102008029249A1 (en) 2009-12-31

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