EP0180855A1 - Procédé pour augmenter la résistance à la fatigue de pièces de formes différentes - Google Patents

Procédé pour augmenter la résistance à la fatigue de pièces de formes différentes Download PDF

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Publication number
EP0180855A1
EP0180855A1 EP85113475A EP85113475A EP0180855A1 EP 0180855 A1 EP0180855 A1 EP 0180855A1 EP 85113475 A EP85113475 A EP 85113475A EP 85113475 A EP85113475 A EP 85113475A EP 0180855 A1 EP0180855 A1 EP 0180855A1
Authority
EP
European Patent Office
Prior art keywords
impact
component
fatigue strength
relative movement
increasing
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
EP85113475A
Other languages
German (de)
English (en)
Other versions
EP0180855B1 (fr
Inventor
Hans Dipl.-Ing. Bäuerle
Hansgeorg Ing. Peste (Grad.)
Erwin Pohlner
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.)
Maschinenfabrik Alfing Kessler GmbH
Alfing Kessler Sondermaschinen GmbH
Original Assignee
Maschinenfabrik Alfing Kessler GmbH
Alfing Kessler Sondermaschinen 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 Maschinenfabrik Alfing Kessler GmbH, Alfing Kessler Sondermaschinen GmbH filed Critical Maschinenfabrik Alfing Kessler GmbH
Publication of EP0180855A1 publication Critical patent/EP0180855A1/fr
Application granted granted Critical
Publication of EP0180855B1 publication Critical patent/EP0180855B1/fr
Expired legal-status Critical Current

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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/17—Crankshaft making apparatus

Definitions

  • the invention relates to a method and a device for increasing the fatigue strength of components of different shapes, in particular large crankshafts by cold working, such as hammers, in the most stressed areas in cross-sectional transitions and cross-sectional changes, such as fillets and bore mouths.
  • the increase in the fatigue strength of components in the most highly stressed areas during cross-sectional transitions and cross-sectional changes through cold forming, such as hammers, is a known method that is used in different ways, but mainly in such a way that forces are exerted on the component by means of commercially available impact tools, such as pneumatic hammer and hydraulic vibration exciters be introduced.
  • the pneumatic hammer is mainly used in manual operation in such a way that strikes are triggered at an estimated distance that hit the component at uneven distances and directions of impact. It is readily apparent that the highest theoretical and empirically achievable fatigue strength can not be achieved with this method due to its inaccuracy in the amount of force applied, as well as in the distance between the forces and thus also a required surface quality to avoid reworking.
  • the impact force and impact distance are matched to one another in such a way that the greatest possible increase in fatigue strength is achieved and the surface quality of the surface once hammered eliminates the need for reworking to avoid notch effects.
  • a device for carrying out the method according to claim 1 consists of a lower part 2, a gear box 3, a support 4 and a plurality of striking devices 9.
  • the support 4 and striking devices 9 are longitudinally displaceable in order to adapt to the respective component 1 to enable.
  • the details of this property can be considered known and are therefore not further described.
  • the gearbox 3 contains devices that can be controlled by a drive 6 effect gradual further rotation of the tensioning disk 7 and, after completion of the further rotation by means of a device 8, trigger an impact of the impact device 9 which is adjustable in strength. These devices are also known for other uses and some are commercially available, so that a more detailed description can be omitted.
  • the impact device 9 described below consists of a base body 10, which is provided with a prismatic system 11 according to the radius of the workpiece to be machined and has guides 12 in it, which guide two strikers 13 in their support plane, and them in the support angle around the bolt 15 Give freedom that is considered necessary to adapt to the dimensional relationships of component 1.
  • the bolt 15 transmits the impact energy to the striker 13 and is therefore located in a somewhat larger hole in order to allow the striker 13 to penetrate into the component 1.
  • An intermediate part 16 establishes the connection between the percussion piston 17 and the bolt 15, which transmits the impact energy to the striking die 13.
  • a clamping prism 18 via springs 19 with adjustable clamping bolts 20, 21 attached.
  • the impact device 9 is held adjustable in a tensioning device 22 to determine its position relative to the component 1.
EP85113475A 1984-10-23 1985-10-23 Procédé pour augmenter la résistance à la fatigue de pièces de formes différentes Expired EP0180855B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843438742 DE3438742A1 (de) 1984-10-23 1984-10-23 Verfahren zur steigerung der dauerfestigkeit von bauteilen unterschiedlicher formgebung
DE3438742 1984-10-23

Publications (2)

Publication Number Publication Date
EP0180855A1 true EP0180855A1 (fr) 1986-05-14
EP0180855B1 EP0180855B1 (fr) 1989-03-08

Family

ID=6248539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113475A Expired EP0180855B1 (fr) 1984-10-23 1985-10-23 Procédé pour augmenter la résistance à la fatigue de pièces de formes différentes

Country Status (3)

Country Link
US (1) US4682489A (fr)
EP (1) EP0180855B1 (fr)
DE (1) DE3438742A1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991017273A1 (fr) * 1990-05-08 1991-11-14 Vysshee Tekhnicheskoe Uchebnoe Zavedenie 'sevmashvtuz' Procede et system technologique operationnel de traitement par chocs ultrasoniques
JPH04183211A (ja) * 1990-11-13 1992-06-30 Sumitomo Wiring Syst Ltd 電線のストリップ方法及びそれに使用する電線ほぐし装置
US5493761A (en) * 1994-10-24 1996-02-27 Ingersoll Cm Systems, Inc. Apparatus for fillet rolling of crankshafts
DE10052753A1 (de) * 2000-10-25 2002-05-08 Hegenscheidt Mfd Gmbh & Co Kg Gerät zum Festwalzen von Kurbelwellen
AU2002216689A1 (en) * 2000-11-22 2002-06-03 Ingersoll Cm Systems, Inc. Apparatus and method for rolling workpieces
US6408663B1 (en) * 2001-02-23 2002-06-25 Short Block Technologies, Inc. Method and apparatus for truing crankshafts
DE10222197A1 (de) * 2001-05-28 2002-12-12 Hegenscheidt Mfd Gmbh & Co Kg Vorrichtung zum Festwalzen von Einstichen und Radien der Lagerstellen von Kurbelwellen
DE102004008728B4 (de) * 2004-02-23 2006-06-29 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Vorrichtung zur Steigerung der Dauerschwingfestigkeit, insbesondere der Biegewechselfestigkeit und der Torsionswechselfestigkeit von Kurbelwellen
DE102005032185B4 (de) * 2005-07-09 2016-07-21 Volkswagen Ag Verfahren zur Erhöhung der Dauerfestigkeit von Kurbelwellen
RU2571670C2 (ru) * 2013-12-30 2015-12-20 Общество с ограниченной ответственностью "Гефест ПРВ" Способ и устройство отделочно-упрочняющей обработки коленчатых валов
DE102015203487A1 (de) * 2015-02-26 2016-09-01 Ecoroll Ag Werkzeugtechnik Festhammervorrichtung zum Beeinflussen von Werkstücken und zugehöriges Verfahren
RU2625508C1 (ru) * 2016-10-10 2017-07-14 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") Способ повышения прочности детали с покрытием
RU2625619C1 (ru) * 2016-10-10 2017-07-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") Способ повышения прочности детали с покрытием
DE102017113074B3 (de) 2017-06-14 2018-11-15 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Vorrichtung zum Schlagverfestigen eines Übergangsradius einer Kurbelwelle
DE102017113078B4 (de) 2017-06-14 2019-05-29 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Vorrichtung zum Schlagverfestigen von Übergangsradien einer Kurbelwelle
DE102017113088A1 (de) 2017-06-14 2018-12-20 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Vorrichtung zum Kaltverfestigen einer Kurbelwelle
DE102017113070B3 (de) 2017-06-14 2018-11-15 Maschinenfabrik Alfing Kessler Gmbh Verfahren zum Schlagverfestigen von Übergangsradien einer Kurbelwelle
DE102017113072B4 (de) 2017-06-14 2021-04-08 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Vorrichtung zum Schlagverfestigen von Übergangsradien einer Kurbelwelle
DE102017113071A1 (de) 2017-06-14 2018-12-20 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Vorrichtung zur Nachbearbeitung einer Kurbelwelle
DE102017113066B3 (de) 2017-06-14 2018-11-15 Maschinenfabrik Alfing Kessler Gmbh Verfahren zum Schlagverfestigen von Übergangsradien einer Kurbelwelle
DE102017113077B4 (de) 2017-06-14 2022-02-03 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Vorrichtung zum Schlagverfestigen von Übergangsradien einer Kurbelwelle
DE102017113065B3 (de) * 2017-06-14 2018-11-15 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Vorrichtung zum Schlagverfestigen von Übergangsradien einer Kurbelwelle
RU179882U1 (ru) * 2017-12-08 2018-05-28 федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный технический университет" Устройство для ультразвуковой финишной обработки наружных цилиндрических поверхностей деталей

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB315216A (en) * 1928-07-09 1930-09-04 Otto Foeppl Method of finishing machine or structural parts and the like
GB811875A (en) * 1955-08-04 1959-04-15 Renault Improvements in or relating to cold-hammering devices for crankshafts
GB1009569A (en) * 1963-05-28 1965-11-10 Sonca Ind Ltd Improvements in or relating to the formation of patterned surfaces by peening
EP0082519A2 (fr) * 1981-12-21 1983-06-29 Kawasaki Jukogyo Kabushiki Kaisha Appareil pour le traitement des soudages de tubes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1374877A (en) * 1919-08-14 1921-04-12 Arnold G Carlson Automatic peening apparatus for piston-rings
US1385268A (en) * 1920-12-20 1921-07-19 Anton C Paulson Anvil-vise
DE920080C (de) * 1948-10-02 1955-11-17 Daimler Benz Ag Zylinder- oder Zylinderkopfgussstuecke von Brennkraftmaschinen
US2888846A (en) * 1956-02-15 1959-06-02 Renault Cold-hammering device
US2841861A (en) * 1956-07-10 1958-07-08 Int Harvester Co Device for cold rolling of crankshaft fillets
US4416130A (en) * 1981-03-20 1983-11-22 Industrial Metal Products Corporation Pulsing impact straightener

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB315216A (en) * 1928-07-09 1930-09-04 Otto Foeppl Method of finishing machine or structural parts and the like
GB811875A (en) * 1955-08-04 1959-04-15 Renault Improvements in or relating to cold-hammering devices for crankshafts
GB1009569A (en) * 1963-05-28 1965-11-10 Sonca Ind Ltd Improvements in or relating to the formation of patterned surfaces by peening
EP0082519A2 (fr) * 1981-12-21 1983-06-29 Kawasaki Jukogyo Kabushiki Kaisha Appareil pour le traitement des soudages de tubes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RUSSIAN ENGINEERING JOURNAL, Band 49, Nr. 8, 1969, Seiten 65-67, Melton Mowbray; G.E. PETUSHKOV et al.: "Hardening diesel engine crankshafts by peening" *

Also Published As

Publication number Publication date
DE3438742C2 (fr) 1988-03-24
US4682489A (en) 1987-07-28
DE3438742A1 (de) 1986-04-30
EP0180855B1 (fr) 1989-03-08

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