COATED ROTARY TOOL AND METHOD FOR MANUFACTURING THE SAME
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United States of America Patent
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app pub date -
Apr 3, 2015
filing date -
Feb 29, 2012
priority date (Note) -
Abandoned
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Abstract
A friction stir welding tool of the present invention is used for friction stir welding, and includes: a base material; and a coating layer formed on a surface of at least a portion of the base material that is to be caused to contact workpieces during friction stir welding, the base material being formed of a cemented carbide, and the coating layer containing cubic WC1-x and being formed by electrical discharge machining.
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