EP1576199A2 - Procede pour produire une vis et vis produite selon ledit procede - Google Patents

Procede pour produire une vis et vis produite selon ledit procede

Info

Publication number
EP1576199A2
EP1576199A2 EP03808281A EP03808281A EP1576199A2 EP 1576199 A2 EP1576199 A2 EP 1576199A2 EP 03808281 A EP03808281 A EP 03808281A EP 03808281 A EP03808281 A EP 03808281A EP 1576199 A2 EP1576199 A2 EP 1576199A2
Authority
EP
European Patent Office
Prior art keywords
screw
strength steel
screws
ultra
produced
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.)
Granted
Application number
EP03808281A
Other languages
German (de)
English (en)
Other versions
EP1576199B1 (fr
Inventor
Thomas MÄTZLER
Ernst Rohner
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.)
SFS Group International AG
Original Assignee
SFS Intec Holding AG
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 SFS Intec Holding AG filed Critical SFS Intec Holding AG
Publication of EP1576199A2 publication Critical patent/EP1576199A2/fr
Application granted granted Critical
Publication of EP1576199B1 publication Critical patent/EP1576199B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts

Definitions

  • the invention relates to a method for producing a screw, in particular a screw for indexable inserts, which has an internal attack, and a screw.
  • the present invention has set itself the task of overcoming this prejudice among experts and to create the possibility of producing screws with internal attack from a high-strength material.
  • this is achieved by a method in which ultra-high-strength steel is used as the starting material and in which the screw, including the internal attack, is produced by cold-forming the starting material.
  • FIG. 1 shows a side view of a screw, partially cut away
  • FIG. 2 shows a plan view of the head of the screw.
  • a screw 1 shown in the drawing and manufactured in particular for the attachment of indexable inserts has a head 2 and a shaft 4 provided with a thread 5.
  • the thread 5 with the outer diameter D1 is rolled onto the shaft 4 with a diameter D.
  • the head 2 in the manner of a raised countersunk head has a diameter D3.
  • an internal attack 3 is formed for the use of a drive element.
  • a bore 7 shown in dashed lines
  • Due to the different sections with different diameters, a relatively high degree of forming has to be taken into account, although this was previously considered impossible when using ultra-high-strength steel.
  • the production takes place by cold forming of the starting material, with ultra-high-strength steel being used as the starting material, which has so far not been considered feasible by a person skilled in the art.
  • any type of ultra-high-strength steel can be processed by cold forming the starting material, but in the specific case an ultra-high-strength steel with the composition C 0.03, Mo 5.0, Ni 18.5, Co 8.5, has been found to be the starting material.
  • the invention has made it possible to manufacture a screw, in particular a screw for indexable inserts, which consists of ultra-high-strength steel and is produced by cold forming. This results in significant improvements in the strength of the screw.
  • a screw for indexable inserts which consists of ultra-high-strength steel and is produced by cold forming.
  • further process steps are used, for example washing processes, turning processes for chamfering, surface grinding, thread rolling, surface treatment, final inspection, etc.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Forging (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

La présente invention concerne une vis constituée d'une tête (2) et d'une tige (4) dotée d'un filet (5), comprenant un élément de couplage interne (3). Ladite vis est réalisée au moyen d'un procédé particulier par formage à froid d'un matériau de départ, de l'acier à dureté ultraélevée étant utilisé comme matériau de départ.
EP03808281.4A 2002-12-23 2003-12-17 Procede pour produire une vis et vis produite selon ledit procede Expired - Lifetime EP1576199B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10260828A DE10260828A1 (de) 2002-12-23 2002-12-23 Verfahren zur Herstellung einer Schraube sowie nach dem Verfahren hergestellte Schraube
DE10260828 2002-12-23
PCT/EP2003/014384 WO2004059016A2 (fr) 2002-12-23 2003-12-17 Procede pour produire une vis et vis produite selon ledit procede

Publications (2)

Publication Number Publication Date
EP1576199A2 true EP1576199A2 (fr) 2005-09-21
EP1576199B1 EP1576199B1 (fr) 2014-10-01

Family

ID=32477956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03808281.4A Expired - Lifetime EP1576199B1 (fr) 2002-12-23 2003-12-17 Procede pour produire une vis et vis produite selon ledit procede

Country Status (8)

Country Link
US (1) US7632053B2 (fr)
EP (1) EP1576199B1 (fr)
JP (1) JP2006512210A (fr)
KR (1) KR101105185B1 (fr)
CN (1) CN100465298C (fr)
AU (1) AU2003303348A1 (fr)
DE (1) DE10260828A1 (fr)
WO (1) WO2004059016A2 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2841947B1 (fr) * 2002-07-05 2005-04-29 Valmex Vis en acier a tete creuse
DE102005014606A1 (de) * 2005-03-31 2006-10-05 Richard Bergner Verbindungstechnik Gmbh & Co. Kg Verfahren zur Herstellung eines Befestigungselements sowie Befestigungselement, insbesondere Schraube
US20080054710A1 (en) * 2006-08-31 2008-03-06 Dt Swiss Inc. Spoke nipple
SG147344A1 (en) * 2007-05-02 2008-11-28 Unisteel Technology Ltd Screw head recess drive and corresponding driver tool and recess punch
FR2937568B1 (fr) * 2008-10-24 2011-12-23 Rdo Alpha Procede de fabrication d'une piece de boulonnerie, outil pour la mise en oeuvre du procede, dispositif de vissage et de devissage d'une telle piece de boulonnerie
JP5325034B2 (ja) * 2009-07-08 2013-10-23 理研精工株式会社 ホイールナットレンチ並びにその製造方法
CN102091827B (zh) * 2009-12-14 2012-09-26 贵州航太管路制造有限公司 一种避免螺杆球形端面翻毛刺的加工方法
NZ627535A (en) * 2012-04-03 2016-01-29 Itw Construction Products Aps Fastener with multilobular tool engaging portion
CN103111808B (zh) * 2013-02-01 2017-09-15 贵州精立航太科技有限公司 一种镍基高温合金gh4169内六角螺栓加工工艺
RU2672660C1 (ru) * 2014-12-17 2018-11-16 Рисёч Инжиниринг Энд Мэньюфэкчэринг Инк. Комбинация крепежного элемента со шлицевой головкой и отвертки
CN108339922B (zh) * 2018-01-19 2019-08-20 宁波安拓实业有限公司 一种自动卡环六角法兰截齿型水泥螺丝的制造方法
CN108857272A (zh) * 2018-06-06 2018-11-23 哈尔滨汽轮机厂有限责任公司 一种车床接纳器用硬质合金头螺钉及其加工方法
WO2020229926A1 (fr) * 2019-05-10 2020-11-19 Ramachandra Kumar Vis améliorée et son procédé de fabrication

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US960244A (en) * 1909-01-09 1910-06-07 Ira Dimock Manufacture of screws.
US1244125A (en) * 1912-03-02 1917-10-23 Le Grand Parish Method of making bolts.
US1978371A (en) * 1931-06-04 1934-10-23 Holo Krome Screw Corp Cold formed socketed or hollow screw and method of and apparatus for making the same
US2084079A (en) * 1935-11-15 1937-06-15 American Screw Co Screw
US2182092A (en) * 1936-04-21 1939-12-05 Winslow Foster Screw and the method of making same
US2977838A (en) * 1957-09-20 1961-04-04 Gen Am Transport Square-recessed screws and punch means for making same
US3304561A (en) * 1964-09-18 1967-02-21 American Fastener Corp Apparatus for forming the head on a flat head screw
US3811872A (en) * 1971-04-21 1974-05-21 Int Nickel Co Corrosion resistant high strength alloy
US3904445A (en) * 1972-12-29 1975-09-09 Jr Hugh M Gallagher Steel bar stock and method for making same
GB1535775A (en) 1976-07-30 1978-12-13 Schraubenkombinat Veb Method of producing high-strength cold-formed parts
US4233880A (en) * 1978-07-20 1980-11-18 Illinois Tool Works Inc. Stainless steel drill screw
JPS5665922A (en) * 1979-10-31 1981-06-04 Daido Steel Co Ltd Production of ultra high strength steel
US5330594A (en) * 1990-10-24 1994-07-19 Consolidated Metal Products, Inc. Method of making cold formed high-strength steel parts
CN2283750Y (zh) * 1996-02-08 1998-06-10 谢智庆 一种多种手工具可扳动的螺钉
JP3266823B2 (ja) * 1997-01-10 2002-03-18 山陽特殊製鋼株式会社 マルエージング鋼の製造方法
GB2337477A (en) 1998-05-22 1999-11-24 Epoxy Powder Coating Company L Manufacturing a screw connection and apparatus therefore
JP2001279386A (ja) * 2000-03-31 2001-10-10 Daido Steel Co Ltd 鋳造性に優れたマルエージング鋼およびその製造方法
JP2001277021A (ja) * 2000-03-31 2001-10-09 Kyocera Corp スローアウェイ式ドリル
JP2002285290A (ja) * 2001-03-27 2002-10-03 Daido Steel Co Ltd 高強度・高耐疲労構造用鋼及びその製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004059016A3 *

Also Published As

Publication number Publication date
EP1576199B1 (fr) 2014-10-01
JP2006512210A (ja) 2006-04-13
KR101105185B1 (ko) 2012-01-13
DE10260828A1 (de) 2004-07-08
WO2004059016A2 (fr) 2004-07-15
US20060078403A1 (en) 2006-04-13
CN100465298C (zh) 2009-03-04
US7632053B2 (en) 2009-12-15
WO2004059016A3 (fr) 2005-03-03
AU2003303348A1 (en) 2004-07-22
AU2003303348A8 (en) 2004-07-22
KR20050085410A (ko) 2005-08-29
CN1729302A (zh) 2006-02-01

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