An induction heating system includes an induction heating head assembly configured to move relative to a workpiece. The induction heating system may also include a temperature sensor assembly configured to detect a temperature of the workpiece and/or a travel sensor assembly configured to detect a position, movement, or direction of movement of the induction heating head assembly relative to the workpiece, and to transmit feedback signals to a controller configured to adjust the power provided to the induction heating head assembly by a power source based at least in part on the feedback signals. In certain embodiments, the induction heating system may also include a connection box configured to receive the feedback signals, to perform certain conversions of the feedback signals, and to provide the feedback signals to the power source. Furthermore, in certain embodiments, the induction heating system may include an inductor stand assembly configured to hold the induction heating head assembly against the workpiece.

Aspects of the present invention relate to an induction heating system for heating a component. The induction heating system includes a power module for outputting an alternating current, the power module being operable to output the alternating current at a variable supply frequency. A controller is provided to identify at least one resonant frequency of the alternating current supplied to the at least one induction element. The controller is configured to determine an operating temperature of the component in dependence on the at least one identified resonant frequency. Aspects of the present also relate to an induction heating controller; a component comprising an induction heating element; and to a method of heating a component by inductive heating.

A method of fusing an alloy-based material with a coating layer using a thermal spray process. The method includes determining a predetermined energization frequency of a high-frequency power supply unit based on a diffused area thickness (T1) and a non-diffused area thickness (T2) of the alloy-based material, inductively heating the alloy-based material and the coating layer to reach a predetermined temperature at the predetermined energization frequency of the high-frequency power supply unit, selectively heating the alloy-based material at the predetermined energization frequency within a penetration depth range of a total thickness (D2) of the alloy-based material to suppress an austenite transformation of at least a portion of the alloy-based material, and fusing the selectively heated alloy-based material with the coating layer by suppressing the austenite transformation of at least the portion of the alloy-based material.

An induction heating device for a shrink-clamping and/or unshrink-unclamping of tools into and/or out of a tool holder, includes an induction heating unit having at least one induction coil configured to thermally expand at least a portion of a tool holder arranged in a receiving region of the induction heating unit, and includes at least one magnetic flux conducting unit for a conduction of a magnetic flux generated by the induction coil, having at least one magnetic flux conducting element, preferably supported movably relative to the receiving region and implemented at least to a large extent of a ferrite material, and includes a sleeve element, arranged on the magnetic flux conducting element and covers the magnetic flux conducting element on at least one side of the magnetic flux conducting element that faces toward the receiving region in at least one operating state of the magnetic flux conducting unit.

A coil for induction heating comprising a conductor wire. The conductor wire includes a base layer that is disposed on a center side of the conductor wire and an additional layer that is joined to an outer periphery of the base layer. The additional layer is biased toward the inner periphery side of the coil than the other sides of the coil. A metallic element which is the main component of a material of the additional layer differs from a metallic element which is the main component of a material of the base layer. The electrical resistivity of the added layer is lower than the electrical resistivity of the base layer.

A multifunctional assembly having a resistive element a conductive element in electrical communication with the resistive element, the conductive element defining at least one of a plurality of multifunctional zones of the resistive element, wherein the conductive element is configured to direct a flow of electricity across at least one of the plurality of multifunctional zones of the resistive element in a preselected manner.

The invention relates to a method for the induction hardening of a workpiece, in particular a toothed and/or corrugated and/or ribbed workpiece such as a gear or saw blade, wherein a matchingly shaped induction loop is guided or set over the workpiece surface to be hardened, the induction loop being formed layer-by-layer by the additive application of material, and the induction loop being shaped to match the surface to be hardened.

An apparatus and a method for an extrusion-based additive manufacture of products from thixotropic metal alloys, with a feeder (2) for the starting material, wherein the starting material is in bar form (3), with a preheating device in the form of an induction coil (8) including a cap for field concentration (7), which encloses the channel (6), with a heater (10) for producing a semi-solid processing state of the preheated starting material, which likewise encloses the channel (6), with an afterheater (13) in the region of the die (11) and with an adjustable workpiece table (15) for the product to be built up layer by layer.

A method of forming a component includes providing a work-piece blank from a formable material. The method also includes engaging the work-piece blank with a transfer device. The method additionally includes austenitizing the work-piece blank in the transfer device via heating the blank to achieve austenite microstructure therein. The method also includes transferring the austenitized blank to a forming press using the transfer device. The method additionally includes forming the component via the forming press from the austenitized blank and quenching the formed component. A work-piece blank transfer system includes a transfer device having clamping arm(s) for engaging, holding, transferring, and releasing the work-piece blank. The transfer device also includes a heating element configured to austenitize the work-piece blank via heating the blank to achieve austenite microstructure therein. The transfer system additionally includes an electronic controller programmed to regulate the heating element and the clamping arm(s).

An induction heating device is provided. The induction heating device comprises a plurality of induction heating devices disposed at intervals along the circumference of a ring-shaped workpiece, a setting unit for setting induction heating conditions, and a switching control unit. Each of the plurality of induction heating devices comprises heating coils disposed facing areas to be heated of the workpiece, a plurality of transformers connected to the heating coils in parallel, a plurality of matching units connected to any one of the plurality of transformers, an inverter unit having a rectifier unit and an inverter unit, an inverter control unit having a rectification control unit, and a group of switches.