Japan’s Mitsui Seiki has developed a drilling machine for aero-engine cooling holes that combines a laser with the massive, precise construction of a high-grade mechanical tool. The company says it developed the drilling machine, called the VLD-300, in cooperation with component makers of aero-engines that were seeking faster, more precise laser drilling than is now available. The VLD-300 will aim its Nd:YAG laser within 0.001 mm. (0.00004 in.) of the specified point on the metal piece to be ...

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