Patents for B23K 9 - Arc welding or cutting (32,679)
08/1994
08/23/1994US5340963 Alternating current power source for welding
08/23/1994US5339485 Cutting torch tip cleaner
08/18/1994WO1994017952A1 Machine for automatic in situ welding according to a curvilinear section profile and having programmable extrapolation control
08/18/1994WO1994017951A1 Welding deformation reducing method for one-side strap joint welding
08/17/1994EP0611217A1 Automatic 'in situ' welding machine permitting to follow a curved part, and having an extrapolation programmable command
08/17/1994CN2174286Y Electricity-saving electric soldering tongs
08/16/1994US5338917 Ergonomic welding gun with quick disconnect cable assembly
08/16/1994US5338916 Control circuit for alternating current TIG welder
08/11/1994DE4303867A1 Orientation device for weld studs
08/10/1994EP0609900A2 Inverter power supply for welding
08/10/1994CN2173679Y Inversion power supply for CO2 welding
08/09/1994US5337148 Apparatus for monitoring a guard window of an arc sensor
08/04/1994WO1994017461A1 Apparatus for controlling weaving of robot
08/04/1994WO1994016856A1 Movable backing device
08/03/1994EP0609108A1 Process and apparatus for orbital welding of a cylindrical piece on a curved wall
08/03/1994EP0608536A1 Arc welding apparatus with semiconducting switches having a central connexion
08/03/1994CN2173136Y DC arc welding self-controlling device
08/03/1994CN2173135Y Moveable manual/argon arc welding two-purpose device
08/03/1994CN2173134Y Multi-function welding machine
08/02/1994US5334813 Metal inert gas welding system for use in vacuum
07/1994
07/27/1994EP0607819A1 Pulsed arc welding apparatus having a consumable electrode wire
07/27/1994EP0607619A2 Teaching control device for manual operations of an industrial robotic system
07/27/1994CN1089894A Method for welding nichrome alloy belt and red copper plate and workholding device thereof
07/27/1994CN1025534C Annular band-cutter weldering method and device thereof
07/26/1994US5332143 Self-propelling apparatus for automatic horizontal position welding of big size square steel column
07/26/1994CA2033930C Consumable electrode arc welding method and apparatus
07/26/1994CA1330892C Automatic build-up welding machine for track rollers
07/23/1994CA2113599A1 Welding gun tip
07/21/1994WO1994015749A1 Welding method and welded structure for forming passivated chromium oxide film on weld
07/21/1994WO1994015745A1 Drill pipe hardband removal and build up
07/20/1994EP0607068A1 Procedure for the welding of elements made of aluminium or an aluminium alloy
07/13/1994EP0605879A1 Inverter power supply for welding
07/13/1994EP0514510B1 Method of manufacturing a heat exchanger, and device for carrying out the method
07/13/1994CN2171442Y Electric-saving welding tongs
07/13/1994CN2171441Y Sealed wiredrawing welding torch casing
07/13/1994CN2171440Y Hand electric arc welding machine with three-phase bridge semi-controlled transistor rectification
07/12/1994US5329092 Welding torch alignment monitor
07/12/1994US5328340 Scroll type compressor, having welded end shells and shaft subframe
07/12/1994CA2113144A1 Process for welding aluminium or aluminium alloy elements
07/06/1994EP0604439A1 Finned tube.
07/06/1994CN2170819Y Non-melting electrode welding feeder
07/06/1994CN2170818Y Energy-saving compensator for AC arc welder
07/05/1994US5326958 Drive device for push-pull welding torches
07/05/1994US5326957 Apparatus for and method of welding surface-treated metallic workpieces
07/05/1994US5326955 Standoff control method and apparatus for plasma cutting machine
07/05/1994CA2058366C Automatic welding apparatus
07/05/1994CA2018701C Method for one-side root pass welding of a pipe joint
06/1994
06/29/1994CN1088503A Wear resistant pattern build-up welding of transition trough of scraper conveyor
06/29/1994CN1025165C Low carbon micro-alloy submergedarc welding wire
06/29/1994CN1025164C Welding method for steel plates specially used for enamelling
06/28/1994US5324914 Method and apparatus for welding precipitation hardenable materials
06/23/1994WO1994013428A1 Shielding gas for use in the arc welding of aluminium
06/23/1994WO1994013427A1 Shielding gas for use in the arc welding of aluminium
06/23/1994WO1994013423A1 Arc welding control method using welding robot
06/22/1994EP0602495A1 Resonant-load power supply for arc welding
06/22/1994EP0582627A4 Internal diameter (i.d.) welding machine, and rotary drive and feed unit therefor
06/22/1994CN2169511Y Energy saving electric welding handle
06/22/1994CN2169510Y Thyristor type multipurpose dc arc welder
06/21/1994US5322208 Method for welding vehicle frame
06/16/1994DE4312224C1 Appts. for feeding solder wire in soldering installation - with wire deflection measured within its bending region resulting from an angle in the wire feed direction
06/15/1994EP0601206A1 Robot for welding
06/15/1994CN2168679Y Two-purpose arc welding and charging apparatus with silicon rectification
06/15/1994CN2168678Y Multifunctional welder for refrigerator
06/14/1994US5321259 Imaging device with prism scan element means
06/14/1994US5321226 Apparatus for welding a stud to a workpiece
06/14/1994US5321224 Methods of modifying surface qualities of metallic articles and apparatuses therefor
06/14/1994CA2019232C Apparatus for air arc gouging
06/09/1994WO1994012312A1 Spatter reduction technique
06/09/1994CA2150001A1 Spatter reduction technique
06/08/1994EP0600768A1 Method and device for the repair of a defective zone of a metallic piece and particularly of a tubular piece
06/08/1994CN2167807Y Electric welding tongs
06/08/1994CN2167806Y Bypass cartoon dioxide gas shieling welding torch
06/07/1994US5319533 Power selection and protection circuit responsive to an input voltage for providing series or parallel connected inverters
06/07/1994US5319179 Method and apparatus for welding workpieces made of superalloys
06/07/1994US5318284 Table, particularly orienting and welding table
06/01/1994EP0599737A1 Build-up procedure on a work piece by plasma with transferred arc
06/01/1994EP0397789B1 Improved cored electrode wires
06/01/1994CN2166908Y High efficiency ac arc welder
06/01/1994CN1087300A Arc control method for a.c. metal inertgas arc welding
05/1994
05/31/1994US5317124 Stud welding
05/31/1994US5317123 Controller for a stud welding machine
05/31/1994US5317116 Pulse welding apparatus
05/31/1994CA2008174C Rotatable plasma torch
05/28/1994CA2103492A1 Process for recharging a part by means of a plasma transferred arc
05/26/1994WO1994011128A1 A composite roll
05/26/1994DE4311078C1 Prodn. of casing-shaped printing forme - uses plate with pass hole system with both plate edges to be joined having retention strips
05/26/1994DE4302443C1 Arc welding equipment with semiconductor-switched sec. current paths - is based on switched-prim. transformer with two sec. windings in same direction switched by separate semiconductors in push=pull mode
05/25/1994CN2165952Y Submerged-arc slag welding machine head for reinforcing bars horizontal end-to-end jointing
05/25/1994CN2165951Y Contravariant arc welding machine
05/25/1994CN2165950Y Multi-purpose welding and cutting machine
05/25/1994CN1087045A High-hardness wear-proof welding electrode without preheating
05/25/1994CN1087043A Arc welding machine and plasma cutting machine
05/24/1994US5315089 System and method for converting an AGTAW welder into an AGMAW welder
05/19/1994DE4338616A1 Wheel rim for vehicle - uses laser welding to join disc to rim edge onto which gas escape openings are fitted so that each are in contact with air
05/19/1994DE4238109A1 Method and appts. for sucking off glowing particles and gases - from welding process with recirculation of cleaned water
05/18/1994EP0597136A1 Device for purifying and extracting welding fumes
05/18/1994CN2164939Y Tension spring balance rotary-arm type wire feeder for welding
05/18/1994CN2164938Y NC automatic tracking welding positioner
05/18/1994CN2164937Y High-efficiency energy-saving ac welder
05/18/1994CN1024607C Distribution welding transformer