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Rotary Burnish Head and System

IP.com Disclosure Number: IPCOM000052764D
Original Publication Date: 1981-Jul-01
Included in the Prior Art Database: 2005-Feb-11

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Hagopian, JJ [+details]


A rotary burnish device is provided to remove protrusions from the surface of a magnetic recording disk. A ceramic material was chosen for the rotary burnish head, and various land designs, illustrated in Fig. 1, were fabricated by diamond wheel machining. Tests showed that the rotary head developed an adequate self-generated air bearing when the external air was shut off, and that with sufficient spring loading, the spacing could be brought down to the surface-burnishing range. It was further observed that particles resulting from the rotary burnish action had a greater tendency to adhere to the edges of the burnish head lands than be blown or drawn away.