Volvo Aero Corporation

Gknaerospace Sweden Ab

Per Henrikson

In a method for controlling a tool during machining a work piece using the tool, a first measuring arrangement which has a first ultrasonic probe for emitting ultrasonic waves is used, the first measuring arrangement being arranged ahead of the tool with respect to the relative tool movement direction and being moved relative to the work piece in the relative tool movement direction. The ultrasonic waves emitted by the first ultrasonic probe are transmitted to the work piece, and are transmitted back to the first ultrasonic probe, by a first column of liquid which is created by the first measuring arrangement and situated between the first ultrasonic probe and the work piece for measurement. The measurements are used for automatically adjusting the position of the tool relative to the work piece during machining the work piece.

Method and device for controlling a tool with ultrasonic waves

Method and device () for monitoring a welding area of an object () in connection with welding, which device includes arrangements () for reproduction of the welding area, at least one filter () arranged in front of or in the reproduction arrangement (), and an illumination arrangement () of the welding area with ultraviolet radiation. The filter () consists of a band-pass filter which is adapted for filtering around a wavelength within the ultraviolet wavelength range.

Device and method for monitoring a welding area and an arrangement and a method for controlling a welding operation

In a method for measuring the size or shape of an edge of a machined work piece or of a cutting edge of a tool, the surface of the edge is illuminated by diffused radiation from several positions in the vicinity to the edge by an illumination arrangement, and a picture of the edge is reproduced by recording reflected radiation from the illuminated edge by means of a picture reproduction unit.

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Trollhättan, Sweden

Per Henrikson