The sine wave or sinusoid is a mathematical curve that describes a smooth repetitive oscillation. Named after the mathematical sine function, of which it is the graph, it describes the way a generator develops alternating current (AC), and is the pattern of the simplest AC welding current.
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The robots are coming - by Dan Davis Robots replacing fabricators is not likely to happen in the next few years. However some predict that robots may replace almost 50 percent of all kinds of jobs in the future. That is likely to include some fabrication jobs.
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