EP0511274A1 - Dispositif pour le traitement de surface de pieces au moyen d'un rayonnement lumineux. - Google Patents

Dispositif pour le traitement de surface de pieces au moyen d'un rayonnement lumineux.

Info

Publication number
EP0511274A1
EP0511274A1 EP91902949A EP91902949A EP0511274A1 EP 0511274 A1 EP0511274 A1 EP 0511274A1 EP 91902949 A EP91902949 A EP 91902949A EP 91902949 A EP91902949 A EP 91902949A EP 0511274 A1 EP0511274 A1 EP 0511274A1
Authority
EP
European Patent Office
Prior art keywords
reflector
workpiece
arc lamp
focus
longitudinal axis
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
EP91902949A
Other languages
German (de)
English (en)
Other versions
EP0511274B1 (fr
Inventor
Clemens Meyer-Kobbe
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.)
MEYER KOBBE CLEMENS
Original Assignee
MEYER KOBBE CLEMENS
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 MEYER KOBBE CLEMENS filed Critical MEYER KOBBE CLEMENS
Publication of EP0511274A1 publication Critical patent/EP0511274A1/fr
Application granted granted Critical
Publication of EP0511274B1 publication Critical patent/EP0511274B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • 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
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation

Definitions

  • the invention relates to a device for
  • an annealing furnace with a long arc lamp is known.
  • the longbow lamp is in a closed room. Static operation is planned.
  • the known device works at relatively low temperatures, namely annealing temperatures, to heal lattice dislocations and thus relieve internal stresses.
  • An aspherical reflector is used and the lamp is operated in pulsed mode in order to achieve high energy for a short time to heal the lattice dislocations.
  • An even distribution of energy is provided, the irradiated area should not exceed twelve times the light-emitting area of the lamp.
  • the lamp and / or the workpiece are arranged outside the beam center of the reflector in order to maintain the uniform illumination of the workpiece.
  • the individual beams are imaged at different points so that there is no bundling, that is to say no focusing of the lamp beams.
  • the device comprises an elliptical mirror, in or near the focus of which is close to a mirror, an arc lamp as a practically punctiform radiation source for high-temperature radiation, and in or near whose other focus which is remote from the mirror, the workpiece is arranged.
  • an arc lamp as a practically punctiform radiation source for high-temperature radiation
  • the workpiece is arranged.
  • the object of the present invention is to provide a convenient object of the present invention.
  • Fig. 1 is a schematic perspective
  • FIG. 2 shows a schematic representation of the device according to the invention according to FIG. 1 in an inclined position for adjusting the machining track width
  • Fig. 10 shows the device according to the invention in
  • FIG. 11 shows the device according to the invention with the reflector inclined between the reflector and the workpiece, the inclination being transverse to the longitudinal axis
  • FIGS. 14 to 16 the device according to the invention
  • the drawing shows a device for the surface treatment of workpieces.
  • the device comprises a reflector 1 with an elliptical cylindrical surface 11 and side end walls 12, which support a high-power arc lamp 2 arranged approximately in the reflector-near focus, the light beams 30 of which are focused on a reflector-free line focus 4, cf. Fig. 1.
  • the surface of a workpiece 3 to be treated is located in or near this line focus 4.
  • the workpiece 3 is arranged to be three-dimensionally movable with the aid of a device (not shown), which is indicated by the coordinate cross XYZ and the movement arrows 5.
  • a device not shown
  • Reflector 1 can be arranged to be movable in three dimensions.
  • the relative movement between the workpiece and the reflector 1 or the lamp beam of the reflector can be controlled by a CNC control, with either the workpiece or the reflector or both parts being moved.
  • the reflector 1 with the high-power long-arc lamp 2 can be adjusted to the side at an angle ⁇ between zero and 90 ° orthogonal to the relative movement 5, so that the machining track width 6 can be set, cf. Fig. 2.
  • coolable screens 7, 7 'arranged in the beam path 30 are provided for beam limitation, cf. 3 and 4, the diaphragms 7 serving to limit the width of the irradiation area (FIG. 3) and the diaphragms 7 'serving to limit the length of the irradiation area (FIG. 4) of the workpiece 3.
  • the limitation of the width of the irradiation area can also be by mirrors 8 (FIG. 5) and 18 (FIG. 7) and 28 (FIG. 9) and the limitation of the length of the irradiation area by mirrors 8 '(FIG. G) and 18' ( Fig. 8) take place.
  • the reflector 1 can be pivoted about the longitudinal axis of the long arc lamp 2 such that the workpiece surface normal and the reflector normal are at an angle ⁇ about the longitudinal axis of the long arc lamp, as is shown in FIG. 10 is shown. Furthermore, the reflector 1 with the longitudinal axis of the long-arc lamp 2 lying approximately in the reflector-near focus can be inclined at an angle ⁇ transverse to the longitudinal axis of the long-arc lamp, cf. Fig. 11.
  • a cooling device 25 for example in the form of a tube or a plate-shaped hollow body with nozzles 26 pointing towards the workpiece 3, can be moved around the heated edge layer or the heated surface as quickly as possible cool down, cf. Fig. 12, 13. At the same time, this device can serve as an aperture to limit the beam gangos.
  • the cooling device 25 can be arranged in such a way that workpiece quenching during relative movement in the direction of the longitudinal axis of the line focus, cf. Fig. 13, or that one
  • the cooling device can advantageously be a type of water shower, in order to be able to better quench the workpiece edge layer rn.it with water, particularly in the case of long exposure times to the beam.
  • a processing gas flow 31 can be provided transversely, primarily against the feed direction when the workpiece moves or in the feed direction when the reflector moves between the workpiece and the reflector.
  • a device 27 with a processing gas nozzle 29 can be arranged below or to the side of the reflected beam 30, cf. 14 and 15.
  • the processing nozzles 29 can also be integrated into the reflector, as shown in FIG. 16, primarily at locations in the reflector which do not or only to a small extent contribute to the radiation intensity in the line focus; these locations are, for example, the zenith of the reflector or the side walls 12 of the reflector.
  • This arrangement of the machining gas nozzles has the advantage that the water vapor generated is blown away from the reflector when water is quenched.
  • the lamp power can be reduced according to the heat conduction conditions or the workpiece preheating.
  • the device described above can be used excellently for large surface treatment of workpieces.
  • the light of the high-power long-arc lamp 2 is focused on the surface of the workpiece 3 with the aid of the reflector 1, either providing a relative movement between the workpiece and the reflector for heating across the area or stationary heating of the surface layer in order to heat the surface layer and at high levels
  • a quenching medium for example water.
  • the quenching is advantageously carried out with water, as has already been mentioned above.
  • the intensity in the line focus i. H. the lamp power and / or the beam exposure time are chosen so small that the melting temperature of the workpiece surface layer is not reached.
  • the workpiece can also be subjected to a further heat treatment before the lamp beam treatment or after the lamp beam treatment.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

Un dispositif pour le traitement de surface de pièces au moyen d'un rayonnement lumineux comporte un réflecteur et une lampe à arc. Pour permettre de traiter des pièces sur de grandes surfaces, le réflecteur (1) présente une surface cylindrique et elliptique (11), au niveau ou à proximité du foyer, proche du réflecteur, de laquelle est disposée une lampe à arc long de forte puissance (2), et qui focalise la lumière sur un foyer linéaire (4), éloigné du réflecteur, au niveau ou à proximité duquel est disposée la pièce à traiter (3). Le réflecteur et la pièce se déplacent l'un par rapport à l'autre. Le réflecteur est conçu de manière à pouvoir s'incliner dans plusieurs directions par rapport à la surface de la pièce pour régler la largeur du traitement et agir sur le réchauffement au niveau du foyer du rayonnement. Il est prévu également de réduire la surface du rayonnement grâce à l'emploi d'obturateurs et de miroirs.
EP91902949A 1990-01-18 1991-01-15 Dispositif pour le traitement de surface de pieces au moyen d'un rayonnement lumineux Expired - Lifetime EP0511274B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4001280A DE4001280A1 (de) 1990-01-18 1990-01-18 Vorrichtung zur oberflaechenbehandlung von werkstuecken mittels lichtstrahlen
DE4001280 1990-01-18
PCT/EP1991/000055 WO1991010751A1 (fr) 1990-01-18 1991-01-15 Dispositif pour le traitement de surface de pieces au moyen d'un rayonnement lumineux

Publications (2)

Publication Number Publication Date
EP0511274A1 true EP0511274A1 (fr) 1992-11-04
EP0511274B1 EP0511274B1 (fr) 1994-07-27

Family

ID=6398281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91902949A Expired - Lifetime EP0511274B1 (fr) 1990-01-18 1991-01-15 Dispositif pour le traitement de surface de pieces au moyen d'un rayonnement lumineux

Country Status (7)

Country Link
EP (1) EP0511274B1 (fr)
JP (1) JPH05505213A (fr)
AT (1) ATE109210T1 (fr)
CA (1) CA2074265A1 (fr)
DE (1) DE4001280A1 (fr)
ES (1) ES2061233T3 (fr)
WO (1) WO1991010751A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11193178B2 (en) 2017-08-16 2021-12-07 Beijing E-town Semiconductor Technology Co., Ltd. Thermal processing of closed shape workpieces

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5444814A (en) * 1993-11-01 1995-08-22 Hofius, Sr.; David V. Method of infrared welding on thermoplastic parts utilizing contoured energy reflecting shields
AT407261B (de) * 1997-04-23 2001-02-26 Boehler Uddeholm Ag Verfahren zur ausbildung einer schicht auf substrate durch aufbringen von thermischer energie
DE10108926C1 (de) * 2001-02-23 2003-01-02 Advanced Photonics Tech Ag Wärmebehandlungsverfahren und -anordnung für Metallgegenstände
DE10125467C2 (de) * 2001-05-25 2003-04-10 Arccure Technologies Gmbh Bestrahlungsvorrichtung mit einer Anordnung von optischen Wellenleitern
DE10157554B4 (de) * 2001-11-23 2006-06-29 Air Liquide Deutschland Gmbh Anlage zum Strahlungshärten
US6947665B2 (en) * 2003-02-10 2005-09-20 Axcelis Technologies, Inc. Radiant heating source with reflective cavity spanning at least two heating elements
WO2005014869A2 (fr) * 2003-07-17 2005-02-17 Queen City Forging Co. Procede de preparation de pieces metalliques destinees a etre chauffees au moyen de rayonnement infrarouge
DE102005035626A1 (de) * 2005-07-29 2007-02-01 Zf Friedrichshafen Ag Verfahren zum Anlassen von Bauteilen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2156352A (en) * 1937-12-09 1939-05-02 Thomas F Peterson Heating device
FR2161073B1 (fr) * 1971-11-26 1977-04-22 Matsushita Electric Ind Co Ltd
GB2083728B (en) * 1980-09-04 1984-06-20 Ushio Electric Inc Annealing furnace
GB2225642B (en) * 1988-12-02 1992-09-09 Vickers Shipbuilding & Eng Improvements in or relating to thermal imaging techniques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9110751A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11193178B2 (en) 2017-08-16 2021-12-07 Beijing E-town Semiconductor Technology Co., Ltd. Thermal processing of closed shape workpieces

Also Published As

Publication number Publication date
CA2074265A1 (fr) 1991-07-19
DE4001280A1 (de) 1991-07-25
WO1991010751A1 (fr) 1991-07-25
JPH05505213A (ja) 1993-08-05
ES2061233T3 (es) 1994-12-01
EP0511274B1 (fr) 1994-07-27
DE4001280C2 (fr) 1992-09-17
ATE109210T1 (de) 1994-08-15

Similar Documents

Publication Publication Date Title
DE10137776C1 (de) Verfahren zur Erzeugung von verschleissbeständigen Randschichten
EP0743888B1 (fr) Dispositif et procede de mise en forme de faisceaux laser, en particulier pour l'usinage des surfaces par laser
EP2205393B1 (fr) Dispositif et procédé d'usinage au laser
EP2762259B1 (fr) Procédé d'usinage d'une surface d'une pièce au moyen d'un rayonnement laser
EP1007267B1 (fr) Procede et dispositif de soudage par faisceau laser
DE4141927A1 (de) Verfahren und vorrichtung zum schweissen von werkstuecken aus superlegierungen
DE2740569B2 (de) Verfahren zum Legieren von ausgewählten Teilbereichen der Oberflächen von Gegenständen aus nicht-allotropen metallischen Werkstoffen
DE19519150A1 (de) Laserstrahlgerät und Verfahren zur Bearbeitung von Werkstücken
EP0511274B1 (fr) Dispositif pour le traitement de surface de pieces au moyen d'un rayonnement lumineux
EP0069383A1 (fr) Procédé de traitement de surface de pièces à usiner
EP1832377B1 (fr) Dispositif et procédé pour souder une pièce
EP1640105A1 (fr) Procédé de soudage laser
DE3121555C2 (de) Verfahren zum Bearbeiten von Stahl mittels Laserstrahlung
DE4123577A1 (de) Verfahren zur laserhaertung von bauteilen
EP0481270A1 (fr) Procédé pour coupler des faisceaux laser cw-CO2
DE10020327A1 (de) Vorrichtung zur Bearbeitung von Werkstücken, Schweißverfahren zum Erzeugen einer in sich geschlossenen Schweißnaht und Verfahren zum Härten metallischer Werkstücke
DE4209938C1 (de) Verfahren zum Umschmelzen einer Werkstückoberfläche
DE10152685A1 (de) Vorrichtung zur lokalen induktiven Wärmebehandlung eines geschweißten Werkstücks
DD291717A5 (de) Verfahren zur einstellung definierter lateraler temperaturfelder bei der lasermaterialbearbeitung
EP0471179A1 (fr) Procédé d'ébavurage des bords de pièces métalliques
WO1991018704A1 (fr) Procede de traitement de surface de pieces au moyen d'un rayonnement laser
DE102005042958A1 (de) Verfahren und Vorrichtung zum Laserbearbeiten mit zusätzlicher Erwärmung im Bereich der Bearbeitungsstelle
DE4042349A1 (de) Verfahren zur oberflaechenbehandlung von werkstuecken mit laserstrahlung
DE102023102044A1 (de) Verfahren zum Beschichten metallischer Werkstücke
WO2024156621A2 (fr) Procédé pour revêtir des pièces métalliques

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19920625

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH ES FR GB IT LI NL

17Q First examination report despatched

Effective date: 19931127

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH ES FR GB IT LI NL

REF Corresponds to:

Ref document number: 109210

Country of ref document: AT

Date of ref document: 19940815

Kind code of ref document: T

ET Fr: translation filed
ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2061233

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19941104

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19951208

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960103

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19960125

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19960126

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19960131

Year of fee payment: 6

Ref country code: CH

Payment date: 19960131

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19960223

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970115

Ref country code: AT

Effective date: 19970115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19970131

Ref country code: CH

Effective date: 19970131

Ref country code: BE

Effective date: 19970131

BERE Be: lapsed

Owner name: MEYER-KOBBE CLEMENS

Effective date: 19970131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19970801

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970115

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19970930

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050115