EP0904860A2 - Procédé et installation de fabrication de fils biconiques - Google Patents

Procédé et installation de fabrication de fils biconiques Download PDF

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Publication number
EP0904860A2
EP0904860A2 EP98117224A EP98117224A EP0904860A2 EP 0904860 A2 EP0904860 A2 EP 0904860A2 EP 98117224 A EP98117224 A EP 98117224A EP 98117224 A EP98117224 A EP 98117224A EP 0904860 A2 EP0904860 A2 EP 0904860A2
Authority
EP
European Patent Office
Prior art keywords
wire
unit
starting material
heating
rolling
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Withdrawn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
EP98117224A
Other languages
German (de)
English (en)
Other versions
EP0904860A3 (fr
Inventor
Andreas Dipl.-Ing. Kleemann
Thomas Dr.-Ing. Muhr
Hartmut Dr.-Ing. Saljé
Tetsukazu Fukuhara
Takao Yamazaki
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.)
Muhr und Bender KG
Neturen Co Ltd
Original Assignee
Muhr und Bender KG
Neturen Co Ltd
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
Priority claimed from DE19800237A external-priority patent/DE19800237A1/de
Application filed by Muhr und Bender KG, Neturen Co Ltd filed Critical Muhr und Bender KG
Publication of EP0904860A2 publication Critical patent/EP0904860A2/fr
Publication of EP0904860A3 publication Critical patent/EP0904860A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires

Definitions

  • the invention relates to a method and a plant for the production of biconical Wire, d. H. of wire with repeating cylindrical wire sections on the one hand and conical wire sections on the other hand, made of cylindrical starting material, especially for the production of helical compression springs.
  • biconical wire for the manufacture of helical compression springs has been used, this biconical wire is through a peeling process of constant diameter wire, d. H. from cylindrical starting material, been made.
  • this is relatively expensive to manufacture; Next material and personnel costs are still material costs due to the loss of material added.
  • the peeling process leads to peeling marks or peeling marks on the surface of the wire; such peeling marks or peeling marks can be more local Voltage increase and, as a result, a reduction in the service life lead, but in any case to a larger spread of life.
  • the invention is therefore based on the object of a method of the type in question Specify the type of high strength biconical wires provided that can be used for the manufacture of helical compression springs, can be used in particular as axle springs for the automotive industry.
  • the method according to the invention is first and foremost characterized in that that the conical wire sections are realized by hot forming become. It can be used as a starting material without further wire rod or drawn Wire can be used. But it can also do something of particular importance is raw material that has a tensile strength of 2000 MPa and moreover has; In particular, CrSi alloy wire can be used as the starting material are used, e.g. B. 54SiCr6 and 60SiCrV6, or material with a similar chemical Composition such as SUP 12 or SAE 9254.
  • the shaping is preferably carried out by Rollers that are operationally adjustable against each other, so that the roll gap and thus change the dimensions of the rolling stock operationally.
  • the invention also relates to a plant for the production of biconical Wire that consists of at least one heating unit and one shaping unit.
  • the biconical wire shown schematically in Fig. 1 is known for what purpose in particular to FIGS. 1 and 2 of German laid-open specification 41 29 172 6a and 6b of German laid-open specification 42 33 462 and on FIG. 1 the German patent 196 04 408 is referred.
  • the plant shown only schematically in FIG. 2 consists of its basic principles First of all, it consists of a heating unit 1 and a shaping unit 2. According to the invention, the conical wire sections are made by hot forming realized. This thermoforming is preferably carried out at a thermoforming temperature from 400 to 950 ° C.
  • the heating unit 1 is an inductive heating unit executed; the starting material is an inductive heating subjected.
  • the starting material can the thermoforming temperature can be heated. But there is also the possibility that To heat the starting material to a temperature above the thermoforming temperature; then you become the starting material after heating to the thermoforming temperature cool, preferably using air or water as the cooling medium. Consequently, the system according to the invention in the illustrated embodiment a cooling unit between the heating unit 1 and the shaping unit 2 3 on.
  • the heating unit 1 provided with a temperature compensation unit or the heating unit 1 one Temperature compensation unit can be arranged downstream. That gives the opportunity to heating the starting material and before thermoforming the starting material a temperature compensation measure - temperature compensation via the Wire cross section - to undergo, preferably the starting material through a as To run heat insulation tube executed temperature compensation unit.
  • the illustrated embodiment of a system according to the invention is otherwise further characterized in that the shaping unit 2 has a cooling unit 4 is subordinate.
  • the biconical wire is cooled, preferably by water, oil or polymer solution as the cooling medium.
  • the properties can also positively influence the biconical wire produced according to the invention, and in connection with the realized thermoforming.
  • one Achieve structure optimization one Achieve structure optimization.
  • the shaping is preferably carried out in the method according to the invention, i. H. the realization of the conical wire sections, by rolling.
  • the molding unit 2 executed accordingly. It is not shown that the molding unit 2 alternately arranged, preferably offset by 90 ° Can have pairs of rollers.
  • the shaping unit 2 can also be designed as a three-roll inclined roller mill. In any case, they are not rollers shown operationally adjustable against each other, so that operational the roll gap and thus the dimensions of the rolling stock changed.
  • degrees of deformation can be achieved during shaping between 5 and 100% can be realized.
  • Recommended for relatively large degrees of deformation it is possible to carry out the shaping by rolling in several rolling passes.
  • Plant still include a roller control 5, a reroll unit 6, with which a rolling is carried out to round the rolled edges, another Heating unit 7, namely for starting, and one of the further heating unit 7 further cooling unit 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Wire Processing (AREA)
EP98117224A 1997-09-30 1998-09-11 Procédé et installation de fabrication de fils biconiques Withdrawn EP0904860A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19743043 1997-09-29
DE19743034 1997-09-30
DE19800237A DE19800237A1 (de) 1997-09-30 1998-01-07 Verfahren und Anlage zur Herstellung von bikonischem Draht
DE19800237 1998-01-07

Publications (2)

Publication Number Publication Date
EP0904860A2 true EP0904860A2 (fr) 1999-03-31
EP0904860A3 EP0904860A3 (fr) 2000-07-05

Family

ID=26040426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117224A Withdrawn EP0904860A3 (fr) 1997-09-30 1998-09-11 Procédé et installation de fabrication de fils biconiques

Country Status (3)

Country Link
US (1) US6035686A (fr)
EP (1) EP0904860A3 (fr)
JP (1) JPH11169991A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2157194A1 (fr) * 2008-08-02 2010-02-24 GMT-Gesellschaft für Metallurgische Technologie- und Softwareentwicklung mbH Procédé et installation de déformage, de traitement et d'alignement en ligne de pièces métalliques en forme de tiges
EP2282855A4 (fr) * 2009-05-19 2016-10-12 Dae Won Kang Up Co Ltd Procédé de fabrication d'un ressort hélicoïdal à l'aide d'un broyeur hélicoïdal de réduction

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19846900C2 (de) * 1998-10-12 2000-08-10 Thyssenkrupp Stahl Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes für abzulängende Tailored Blanks
US6602135B1 (en) * 2000-10-06 2003-08-05 Igt Gaming device having a changing multiple selection set bonus scheme
JP4018331B2 (ja) * 2000-11-10 2007-12-05 高周波熱錬株式会社 ダブルテーパ鋼線と、その連続熱処理方法および装置
KR100466041B1 (ko) * 2002-08-03 2005-01-13 대원강업주식회사 티 에스 엘 코일 스프링
DE10315419B3 (de) * 2003-04-04 2004-05-19 Thyssenkrupp Automotive Ag Verfahren zum Herstellen von Schraubenfedern oder Stabilisatoren
US7297057B2 (en) * 2003-07-31 2007-11-20 Igt Apparatus and method for poker game with additional draw card options

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1602680B2 (de) * 1967-11-04 1975-08-21 Stahlwerke Brueninghaus Gmbh, 5842 Westhofen Schrägwalzvorrichtung zum Verformen des Querschnittes eines zylindrischen Metallstabes
DE1752609A1 (de) * 1968-06-21 1971-06-03 Brueninghaus Gmbh Stahlwerke Verfahren und Vorrichtung zur kontinuierlichen Herstellung konischer Metallstaebe
JPS4830546B1 (fr) * 1970-03-31 1973-09-21
JPS5691904A (en) * 1979-12-27 1981-07-25 Nhk Spring Co Ltd Manufacture of tapered bar with round section
JPS56114504A (en) * 1980-02-15 1981-09-09 High Frequency Heattreat Co Ltd Method and apparatus for continuously manufacturing heat treated tapered wire rod
DE3434226A1 (de) * 1984-09-18 1986-03-27 Wolfgang Dipl.-Phys. Dr.-Ing. 4800 Bielefeld Lindemann Verfahren zum spanlosen bearbeiten, insbesondere verformen, stangenfoermigen gutes, wie wellen, draht o.dgl. und aggregat zur ausuebung des verfahrens
US5058410A (en) * 1989-03-14 1991-10-22 Boehler Gesellschaft M.B.H. Method and apparatus fo producing thin wire, rod, tube, and profiles, from steels and alloys with low deformability, particularly hardenable steels
JPH03189036A (ja) * 1989-12-19 1991-08-19 Kobe Steel Ltd テーパコイルバネの製造方法
DE4129172C2 (de) * 1991-09-03 1995-10-26 Saar Federn Gmbh Verfahren zum Haspeln von Bunden mit konzentrischen Windungen aus walzhartem, vergütetem oder auf andere Weise wärmebehandeltem Draht mit sich periodisch verändernden Drahtdurchmessern
IT1254864B (it) * 1992-04-15 1995-10-11 Filippo Cattaneo Laminatoio continuo per tubi senza saldatura del tipo a mandrino e conunita' di laminazione a tre o piu' rulli comandati e regolabili
DE4233462C2 (de) * 1992-10-05 1997-04-03 Buehler & Co Gmbh Verfahren zur Erhöhung der Zugfestigkeit und der Zähigkeit von martensitischen Stahldrähten und Vorrichtung zur Durchführung des Verfahrens
JPH06346146A (ja) * 1993-06-07 1994-12-20 Sumitomo Metal Ind Ltd 冷間成形コイルばね用線材の製造方法と装置
US5832765A (en) * 1995-10-14 1998-11-10 Daido Tokushuko Kabushiki Kaisha Method and an apparatus for manufacturing wire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2157194A1 (fr) * 2008-08-02 2010-02-24 GMT-Gesellschaft für Metallurgische Technologie- und Softwareentwicklung mbH Procédé et installation de déformage, de traitement et d'alignement en ligne de pièces métalliques en forme de tiges
EP2282855A4 (fr) * 2009-05-19 2016-10-12 Dae Won Kang Up Co Ltd Procédé de fabrication d'un ressort hélicoïdal à l'aide d'un broyeur hélicoïdal de réduction

Also Published As

Publication number Publication date
JPH11169991A (ja) 1999-06-29
EP0904860A3 (fr) 2000-07-05
US6035686A (en) 2000-03-14

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