Abstract:
Eine Verwendung eines Lichtbogenschweißgeräts (101) umfassend eine Richtapparatur (103) zur Ausrichtung eines Lichtbogens des Lichtbogen-Schweißgeräts (101) zum Pressschweißen mit magnetisch bewegtem Lichtbogen umfassend i. eine Haltevorrichtung (120) mit einer Öffnung (104) zur Aufnahme eines Schweißkopfes (102) des Lichtbogen-Schweißgerätes (101); ii. eine oder mehrere Magnetspulen (2) zur Ausbildung eines Magnetfeldes zur Auslenkung eines von einem Schweißgerät (101) in der Öffnung (104) generierten Lichtbogen; und iii. zumindest zwei gebogene Polschuhe (5) umfassend zumindest zwei Schenkel (8, 9) zur Fokussierung des Magnetfeldes; dadurch gekennzeichnet, dass das Lichtbogenschweißgerät zum Verschweißen von Prozessanschlüssen an Rohrleitungen mit geringem Durchmesser von kleiner oder gleich DN4 kühlmittelfrei betrieben wird.
Abstract:
A method of and system for welding or joining workpieces (115) employing an arc generating power supply (2130) to create a weld puddle and at least one resistive filler wire (140) which is heated to at or near its melting temperature and deposited into the weld puddle.
Abstract:
An arc welding system (10) includes a welding torch (26), an electrode (16), and a power supply (12) having a switching-type power converter (22)connected to the torch (26). A parallel state- based controller (34) is connected to the power converter (22) and provides a waveform control signal thereto for controlling its operations. The controller (34) generates a motion control signal (62) for controlling movements of the electrode (16) and/or the torch (26). A sensor (48) senses welding voltage or welding current. A memory (50) stores a welding state table (54) comprising sequential control states, and stores a motion control system state table (56) comprising further sequential control states. The welding waveform (24) is defined in the welding state table (54). The controller (34) controls the operations of the power converter (22) through the waveform control signal according to the welding state table (54), simultaneously adjusting the motion control signal (62)according to the motion control system state table (56). The controller (34) transitions between control states according to the signal received from the sensor (48).
Abstract:
The invention relates to a method for assembly of thick-walled metal pipes and fittings (1, 2), wherein prior to the welding outer ends of pipes and fittings are provided with a weld preparation in the form of a chamfering (3) and an upright edge (4). A weld is then realized between two pipes or between a pipe and a fitting of between two fittings during an automated welding process.
Abstract:
An inductive thermal bonding system includes at least one inductive bonding or heating member containing a magnetic E-shaped inductive core and a coil bounding a central member of the E-shaped inductive core. A rigid cover plate allows high and predictable temperature rate-of-change during use and reduced thermal cycling time without risk of detriment. Adaptive solid copper pads on multiplayer bonding regions minimize bonding errors and improve reliability. A cooling system is provided for adaptively cooling both the bond head and the bonded stack. Single and paired inductive heating members may be employed, and may also be alternatively controlled and positioned to aid generation of multiplayer bonding subassemblies distant from an edge of a multiplayer sheet construct.
Abstract:
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Pressschweissen, insbesondere zum Reibschweissen oder Magnetarc-Schweissen von Werkstücken (2, 3). Die Ist-Länge eines oder beider Werkstücke (2, 3) und eine evtl. Längenabweichung (DELTAl) von einem Sollwert wird gemessen. Bei Existenz einer solchen Längenabweichung wird der Sollwert von mindestens einem Prozessparameter, insbesondere von Reibweg, Reibzeit, Lichtbogenzeit oder Stauchkraft, geändert. Hierbei wird für die Änderung ein Korrekturfaktor C ermittelt, mit dem die Längenabweichung (DELTAl) multipliziert wird. Die Pressschweissvorrichtung (1) besitzt hierfür eine entsprechende Messeinrichtung (12) für die Ermittlung von Werkstücklängen und Längenabweichungen. Die Steuerung (13) besitzt eine Recheneinheit (14) zur Einstellung und Änderung von Sollwerten unter Berücksichtigung des Korrekturfaktors C.
Abstract:
In one embodiment, a welding system having a welding power supply (12) configured to provide welding power is provided. The welding system additionally includes a weld cable (36) coupled to the power supply and configured to transmit the welding power, and a welding torch (16) coupled to the weld cable and configured to apply the welding power to produce a welding arc. The welding system also includes a magnetic field sensor (44) disposed on the weld cable proximate to the welding torch, wherein the welding power supply comprises control circuitry configured to adjust the welding power based at least in part on a signal received from the magnetic field sensor.
Abstract:
Systems and methods consistent with embodiments of the present invention are directed to depositing a consumable (140) onto a workpiece (W) using a hot-wire welding technique which employs a combination of hot wire and arc welding. The waveform creates arc events during the hot wire welding operation to add/control heat in the welding process. The hot-wire welding process can be used by itself, with a laser or in conjunction with other welding processes.