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The Lincoln Electric Company is the first and only welding company to hold a patent on revolutionary new welding process called Surface Tension Transfer. High productivity welding processes are continuously improved to ensure quality connections that bring required safety factor at our new standards. Welding process MIG / MAG is by far the most productive, is constantly improved. This ensures good penetration and low heat input control. It is ideal for welding joints with open root, on gaps or on thin material with no burnthrough. The paper makes a comparison between the weld root by manual arc welding process and welding GAMW - STT root layer where steel L 245 NB - Grade B, X 42 and X 52 in that run pipelines. [ABSTRACT FROM AUTHOR]

Need metalworking cutting through procedures as quick and efficient, and while cheap as measured by economic tools necessary to create hard and superhard materials with good mechanical properties . At high finish surfaces of the tools provided with bonded hard alloy plates are used currently in the process of cutting, diamond powders. They are used both as powder as well as pasta, which improves cutting through the processed surface roughness. High finish operation applies to the tools provided with hard-alloy plates stuck on the cutting tool body, because all surfaces by stripping their assets to obtain the desired quality. This paper presents a new method for super-active surfaces of tools provided with soldered carbide plates, leading to decrease the roughness processing, improved surface finish and geometry processing margins decrease from 0.5 mm to 0.2 mm. [ABSTRACT FROM AUTHOR]