A method for manufacturing at least a metallic portion of a component: a) depositing metallic material layer by layer onto at least one building platform; b) locally fusing and/or sintering the material layer by layer by supplying energy by at least one high-energy beam in the region of a buildup and joining zone to form at least a portion of at least one component layer of the component portion and/or of the component; c) lowering the building platform layer by layer by a predefined layer thickness; and d) repeating the steps a) through c) until completion of the component portion and/or of the component. Before, during and/or after process step b), at least one further portion of the component layer is formed by locally fusing and/or sintering the material by inductive heating at a temperature or in a temperature range above the solidus temperature of the metallic material used. A system for manufacturing at least a portion of a component is also provided.

A method for manufacturing at least a metallic portion of a component: a) depositing metallic material layer by layer onto at least one building platform; b) locally fusing and/or sintering the material layer by layer by supplying energy by at least one high-energy beam in the region of a buildup and joining zone to form at least a portion of at least one component layer of the component portion and/or of the component; c) lowering the building platform layer by layer by a predefined layer thickness; and d) repeating the steps a) through c) until completion of the component portion and/or of the component. Before, during and/or after process step b), at least one further portion of the component layer is formed by locally fusing and/or sintering the material by inductive heating at a temperature or in a temperature range above the solidus temperature of the metallic material used. A system for manufacturing at least a portion of a component is also provided.

An induction welding system employs an induction welding apparatus with an induction welding power supply and a chiller in the same enclosure. An induction welding coil is powered by the induction welding power supply. A variable force press can press together work pieces and an actuator can move the induction welding coil lengthwise along a weld joint. The weld controller repeatably conducts induction welds by controlling the induction welding power supply to power the induction welding coil and controlling the induction welding tooling to at least one of press together work pieces to be welded and move the induction welding coil lengthwise along a weld joint between work pieces to be welded.

An induction welding system employs an induction welding apparatus with an induction welding power supply and a chiller in the same enclosure. An induction welding coil is powered by the induction welding power supply. A variable force press can press together work pieces and an actuator can move the induction welding coil lengthwise along a weld joint. The weld controller repeatably conducts induction welds by controlling the induction welding power supply to power the induction welding coil and controlling the induction welding tooling to at least one of press together work pieces to be welded and move the induction welding coil lengthwise along a weld joint between work pieces to be welded.

A method for producing a cavity valve is provided. The method includes providing a valve body which has a cavity in the interior. The valve body has a circular opening having an opening edge surface on a bottom side. A circular valve cover with a cover edge surface is provided. Inductive heating of at least one of the opening edge surface or the cover edge surface takes place and then welding the valve body to the valve cover by friction welding of the opening edge surface to the cover edge surface.

A method for producing a cavity valve is provided. The method includes providing a valve body which has a cavity in the interior. The valve body has a circular opening having an opening edge surface on a bottom side. A circular valve cover with a cover edge surface is provided. Inductive heating of at least one of the opening edge surface or the cover edge surface takes place and then welding the valve body to the valve cover by friction welding of the opening edge surface to the cover edge surface.

An example method of joining a first substrate with a second substrate includes applying a filler material between respective portions of the first substrate and the second substrate, the filler material including an electrically conducting and/or magnetic material, wherein the filler material and the respective portions define a joint; applying an alternating magnetic field to the joint to heat the electrically conducting material to a reaction temperature; in response to heating the electrically conducting material to the reaction temperature, energizing the joint using energy released from the electrically conducting material; cooling the joint to join the first substrate with the second substrate.

Railway rails are welded in situ by induction welding with an insert (3) between the ends of the rails (1) being welded. The insert (3) compensates, at least in part, for the loss of rail length that occurs in the welding process. Preferably the ends of the rails are pushed apart (e.g. by the length of rail consumed in the welding process) before the insert (3) is placed in position, thereby allowing a longer insert to be used. Induction heating may be performed with a split head (5) that can be opened so as to be placed around a rail in situ and then closed to carry out induction heating.

A method of manufacturing a hollow aerofoil component (100) for a gas turbine engine (10) comprises using a capping panel (200) to cover a pocket (310) in a pocketed aerofoil body (300). During manufacture, a mandrel (400) is provided to support the capping panel (200) in the correct position. This ensures that the outer surface of the capping panel (200) is located as accurately as possible. This means that the capping panel (200) can be made to be as thin as possible, which in turn reduces weight and material wastage. Remotely detectable elements (700) may be provided to the mandrel (400) to enable the location of the pocket (310) to be accurately determined from outside the aerofoil (100).

A method of manufacturing a hollow aerofoil component (100) for a gas turbine engine (10) comprises using a capping panel (200) to cover a pocket (310) in a pocketed aerofoil body (300). During manufacture, a mandrel (400) is provided to support the capping panel (200) in the correct position. This ensures that the outer surface of the capping panel (200) is located as accurately as possible. This means that the capping panel (200) can be made to be as thin as possible, which in turn reduces weight and material wastage. Remotely detectable elements (700) may be provided to the mandrel (400) to enable the location of the pocket (310) to be accurately determined from outside the aerofoil (100).