PT990708E - Processo para producao de molas helicoidais - Google Patents

Processo para producao de molas helicoidais

Info

Publication number
PT990708E
PT990708E PT98118691T PT98118691T PT990708E PT 990708 E PT990708 E PT 990708E PT 98118691 T PT98118691 T PT 98118691T PT 98118691 T PT98118691 T PT 98118691T PT 990708 E PT990708 E PT 990708E
Authority
PT
Portugal
Prior art keywords
shot peening
production
steps
helical springs
helicoidais
Prior art date
Application number
PT98118691T
Other languages
English (en)
Inventor
Josef Wienand
Gerhard Mier
Original Assignee
Thyssen Krupp Automotive 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 Thyssen Krupp Automotive Ag filed Critical Thyssen Krupp Automotive Ag
Publication of PT990708E publication Critical patent/PT990708E/pt

Links

Classifications

    • 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
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
    • 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
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C21D1/30—Stress-relieving

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Springs (AREA)
  • Wire Processing (AREA)
  • Steroid Compounds (AREA)
PT98118691T 1998-10-02 1998-10-02 Processo para producao de molas helicoidais PT990708E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98118691A EP0990708B1 (de) 1998-10-02 1998-10-02 Verfahren zum Herstellen von Schraubenfedern

Publications (1)

Publication Number Publication Date
PT990708E true PT990708E (pt) 2003-06-30

Family

ID=8232743

Family Applications (1)

Application Number Title Priority Date Filing Date
PT98118691T PT990708E (pt) 1998-10-02 1998-10-02 Processo para producao de molas helicoidais

Country Status (5)

Country Link
EP (1) EP0990708B1 (pt)
AT (1) ATE235567T1 (pt)
DE (1) DE59807656D1 (pt)
ES (1) ES2190562T3 (pt)
PT (1) PT990708E (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104690495A (zh) * 2013-12-05 2015-06-10 上海中国弹簧制造有限公司 高应力悬架弹簧的制造工艺
CN104960996B (zh) * 2015-06-23 2017-10-03 宋锦程 用于钢丝绳的整理装置
CN113510444A (zh) * 2021-05-18 2021-10-19 福建永动力弹簧科技有限公司 一种绞龙弹簧生产工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1109561B (de) * 1959-04-03 1961-06-22 Gen Motors Corp Verfahren zur Erhoehung der Dauerfestigkeit von Metallen
JP2994508B2 (ja) * 1991-11-26 1999-12-27 株式会社東郷製作所 コイルばねの製造方法
DE4330832C2 (de) * 1993-09-11 1996-04-04 Hoesch Federn Gmbh Verfahren zur Optimierung der Eigenspannungsverteilung im Stabquerschnitt von Schraubendruckfedern
JP3173756B2 (ja) * 1994-07-28 2001-06-04 株式会社東郷製作所 コイルばねの製造方法

Also Published As

Publication number Publication date
EP0990708B1 (de) 2003-03-26
EP0990708A1 (de) 2000-04-05
ATE235567T1 (de) 2003-04-15
ES2190562T3 (es) 2003-08-01
DE59807656D1 (de) 2003-04-30

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