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December 2014

Tightrope Walkers

In his 2011 MICROmanufacturing article, “Life on the Small Wire,” Dave Kari, director of wire electrical discharge machining at Top Tool Co., discussed the challenges of learning to machine parts with extremely thin wire. Three years later, Kari’s learning curve with micro wire EDMing is far from over. While a typical EDM shop uses wire 0.008″ and above, Kari works with wire one tenth that size—0.0008″ in diameter. “It’s nearly invisible to the naked eye,” he said. “For every new job that comes through the door, you take everything you know and throw half of it out the window. What’s left is the basis for a whole new page in… Read More »Tightrope Walkers