Processing

Please wait...

Settings

Settings

1. WO1996005935 - METHOD, ELECTRODE AND WELDING APPARATUS FOR DEPOSITING A WELDED FACING ON A MEMBER AND AN ENGINE OR MACHINE PART PROVIDED WITH SAID FACING

Publication Number WO/1996/005935
Publication Date 29.02.1996
International Application No. PCT/DK1995/000329
International Filing Date 15.08.1995
Chapter 2 Demand Filed 12.03.1996
IPC
B23K 9/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
04Welding for other purposes than joining, e.g. built-up welding
B23K 9/133 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
12Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
133Means for feeding electrodes, e.g. drums, rolls, motors
CPC
B23K 9/046
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
04Welding for other purposes than joining, e.g. built-up welding
044Built-up welding on three-dimensional surfaces
046on surfaces of revolution
B23K 9/133
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
12Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
133Means for feeding electrodes, e.g. drums, rolls, motors
Applicants
  • MAN B & W DIESEL A/S [DK/DK]; Teglholmsgade 41 DK-2450 Copenhagen SV, DK (AllExceptUS)
  • THOMASEN, Bent [DK/DK]; DK (UsOnly)
Inventors
  • THOMASEN, Bent; DK
Agents
  • INDAHL, Peter ; Internationalt Patent-Bureau Høje Taastrup Boulevard 23 DK-2630 Taastrup, DK
Priority Data
0947/9416.08.1994DK
Publication Language English (EN)
Filing Language Danish (DA)
Designated States
Title
(EN) METHOD, ELECTRODE AND WELDING APPARATUS FOR DEPOSITING A WELDED FACING ON A MEMBER AND AN ENGINE OR MACHINE PART PROVIDED WITH SAID FACING
(FR) PROCEDE, ELECTRODE ET SOUDEUSE PERMETTANT LE DEPOT D'UN PAREMENT SOUDE SUR UN ELEMENT, ET PIECE DE MOTEUR OU DE MACHINE POURVUE DUDIT PAREMENT
Abstract
(EN)
A member (17) is provided with a welded facing by means of a method in which a strip electrode, the strip width of which is at least 12 times larger than the strip thickness, is fed and melted under gas shielding by means of a transmitted open arc. A feed device (10) moves the strip electrode at a constant, adjustable speed down through a welding head (15) with electric contact means (31, 32) and further towards the member, a power source at the same time supplying a voltage and current so that the electrode material is melted in a spray arc or a short arc. The melted material is shielded by gas supplied via an annular gas distributor nozzle (46, 49) positioned inside a gas cup (48), which may suitably have an outlet opening which is oblong in the welding direction. The welding is performed at a melting rate of about 8 kg/h, and the method is particularly applicable for welding a protective facing on to members of an irregular geometry, such as a disc valve (17) for an internal combustion engine.
(FR)
Un élément (17) est pourvu d'un parement soudé grâce à un procédé consistant à débiter et faire fondre par soudage à l'arc sous atmosphère de gaz une électrode en ruban dont la largeur est d'au moins 12 fois supérieure à l'épaisseur. Le dispositif débiteur (10) fait descendre à vitesse constante et modulable l'électrode en ruban dans une tête de soudeuse (15) pourvue d'organes de contact (31, 32), le mouvement se réalisant en direction de l'élément. Une alimentation électrique délivre simultanément une tension et une intensité permettant à la substance d'électrode de fondre dans un arc de soudage avec fusion en pluie ou dans un arc court. La matière en fusion est protégée par un gaz alimenté par une rampe annulaire (46, 49) située dans une jupe à gaz (48), qui peut avantageusement présenter un orifice d'évacuation oblong respectant le sens de soudure. Le soudage s'effectuant selon une cadence de fusion de 8 kg/h, le procédé est particulièrement adapté au soudage de parements de protection sur des éléments à géométrie irrégulière tels que les têtes de soupapes (17) d'un moteur à combustion interne.
Also published as
Latest bibliographic data on file with the International Bureau