Kvaerner Masa-Yards Oy

Kemppi Oy

Kempower Oyj

Mikko Veikkolainen

Jukka Gustafsson

Petteri Jokinen

Juhani S&auml;ikk&ouml;

Jari Kettunen

Jussi Fihlman

Petteri JERNSTRÖM

Vesa Tiilikka

Markku MÄKI

A welded structure is formed by arranging multiple pieces on a three-dimensional support base to provide an assembly in accordance with the structure to be welded and making a picture map of the assembly by photographing the assembly. Weld points are identified from the picture map and welding parameters are determined from the picture map. Control data specifying the weld points and welding parameters are supplied to welding equipment that is operable in a three-dimensional X-Y-Z coordinate system. The welding equipment is moved in the X-Y plane on the basis of the picture map and said control data. The welding equipment is moved along the Z-axis on the basis of Z-axis position data that are acquired by repeatedly measuring the Z-axis position of the support base.

Method of controlling the welding of a three-dimensional structure

Constituent pieces of a structure to be welded are arranged in a desired configuration on a support surface and are welded together at a plurality of weld points to form the welded structure. At least one image of the arrangement of the constituent pieces on the support surface is recorded and the positions of the weld points are determined from the image(s). The welding of the constituent pieces is controlled on the basis of the determined positions of the weld points.

Welding arrangement and method

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Espoo, Finland

Mikko Veikkolainen