Abstract: A tool interchange for a submersible remote operated vehicle (ROV) arm includes a first interchange body that affixes to an ROV arm. A second interchange body is carried by the first interchange body to rotate on a rotation axis. The second interchange body includes a tool mount actuable between gripping an ROV tool to the second interchange body and releasing the ROV tool from the second interchange body. An inductive power coupling part is provided in the tool mount. The inductive power coupling part is presented outwardly in the tool mount opposite the first interchange body, resides on the rotation axis and is fixed with respect to the first interchange body while the second interchange body rotates. The inductive power coupling part is adapted to inductively communicate power with a corresponding inductor power coupling part of the ROV tool when the ROV tool is docked in the tool mount.

Abstract: A method of processing a powdery material for additively manufacturing a workpiece (22) comprises the steps of: (a) providing a device (15) for receiving a powder bed (20) of the powdery material to be machined and a beam generator (12) adapted to direct an energy beam (13) to laterally different locations of the powder bed (20); b) applying the powdery material in layers to the powder bed (20); c) irradiating an area (30; 30a; 30b; 30c) in the powder bed (20) with the energy beam (13), wherein the area (30; 30a; 30b; 30c) is composed of a plurality n of points P1 . . . Pn arranged in two dimensions, which are irradiated one after the other. In order to improve the scanning strategy during step c), it is provided that at least once during the irradiation of the area two successively irradiated points Pi, Pi+1 are spaced apart from each other in such a way that in each of the two dimensions at least one other point P1 . . . Pi?1, Pi+2 . . .

Abstract: An electron beam system for the additive manufacture of a workpiece having a process chamber which can be evacuated and comprising an electron beam generator which is designed to direct an electron beam onto laterally different locations of a powder bed made of a pulverulent material to be processed in the process chamber. In order to improve the throughput of the electron beam system, the system has at least one prechamber which can be evacuated and which is constantly connected to the process chamber during the operation of the electron beam system in a vacuum-tight manner via a sluice door. Furthermore, at least one movable receiving device for receiving the powder bed and a transport device are provided, said transport device allowing the at least one receiving device to be transported from the prechamber into the process chamber.

Abstract: Methods for processing a powdered material using electron beam equipment for the additive manufacture of components, which methods solve the problem of electrostatic powder entrainment and significantly reduce the process times. This effect is achieved by acceleration voltages of 90 kV or greater in the pre-heating step and/or in the melting step.