Cutters – for shaping – Rotary cutting tool – Face or end mill
Patent
1998-07-13
2000-05-23
Tsai, Henry W. H.
Cutters, for shaping
Rotary cutting tool
Face or end mill
407 59, 407119, 407120, 82163, B23B 2714
Patent
active
06065905&
ABSTRACT:
A rotary cutting tool such as an endmill includes a coating on its radial relief surfaces for enhancing damping of vibratory motion of the tool at speeds which permit the relief surfaces to rub on the workpiece being machined. The coating has a hardness substantially less than that of the remainder of the tool. In a preferred embodiment, the tool is made of tungsten carbide, steel, or ceremet, and the coating is aluminum or an alloy thereof, having a thickness of about 0.0015 inch for tools with cutting diameters of about 1/4 inch to about 1 inch.
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McDonnell Douglas Corporation
Tsai Henry W. H.
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