The Application of Microcomputers in Automated Arc Welding Systems
An overview is presented of the functions, capabilities, and operation of the microcomputer as it relates to automated arc welding. This is followed by examples of the use of the microcomputer ranging from automatic joint tracking to complete weld system programming and data logging. A discussion of future applications of the microcomputer in the role of full, adaptive weld automation is given.
Industrial Computer Vision in Japan
Japanese research in pattern analysis and machine intelligence has focused on industrial applications. A number of successful computer vision systems are now employed in Japanese manufacturing.
Investigation of large strain extrusion machining (LSEM) of pure magnesium (Mg)
Abstract Large strain extrusion machining (LSEM) is used to produce pure magnesium strips directly from as-cast billets. LSEM reduces manufacturing steps and the special shear direction inclines the unfavorable strong basal texture of Mg. Finding suitable parameter ranges to control geometry and properties of the produced strip is a great challenge. In the present research, a finite element model is proposed and verified with experiments and previous findings. Next, effects of process parameters (temperature and pressure) on geometrical and microstructural properties of the produced strips are investigated. Studying the involved failure micro-mechanisms shows that the process temperature and hydrostatic pressure have adverse effects on the production of a flawless strip. To reduce the temperature and hydrostatic pressure throughout the LSEM process many different conditions are tested by the FEM model. Among all the examined conditions, 0.85 m m R e v feed and 530 R e v m i n rotation speed yields the most promising results it terms of low temperature, low hydrostatic pressure, and stable machining force. The proposed conditions are applied in the experimental setup and a uniform and flawless strip is obtained.