Showing papers in "Welding and metal fabrication in 1979"
Journal Article•
TL;DR: In this article, the welding torch is suspended on a travelling gantry and has seven axes of freedom, each axis is driven by electric hydraulic pulse motors or electric pulse motors through an open-loop NC.
Abstract: Developed for fully automatic welding of a wide variety of hull block subassemblies the Mitsui robot adopts MIG welding. The welding torch is suspended on a travelling gantry and has seven axes of freedom. Each axis is driven by electric hydraulic pulse motors or electric pulse motors through an open-loop type NC. The position of the welding line is defined by the original input data (welding line position and welding condition) and corrected data obtained from the visual sensing system which is controlled by a mini-computer (main-computer). The robot system is comprised of three sub-systems; a control data generating system, a driving control system and a visual sensing system.
2 citations
Journal Article•
TL;DR: A self-contained and non-explosive new jet-cutting torch can perforate steel plate up to 7.5 cm thick and is also capable of severing cable and chain this paper.
Abstract: A simple, self-contained and non-explosive new jet-cutting torch can perforate steel plate up to 7.5 cm thick and is also capable of severing cable and chain. Successful underwater tests at depths in excess of 400 m point to useful applications in salvage and recovery as well as for emergency rescue and release.
1 citations