发明名称 |
Surface finishing for magnetic transducers |
摘要 |
A process for fabricating magnetic transducing heads includes successive grinding, lapping and finishing steps. The ferrite cores of the transducing heads are rough cut with a silicone carbide grinding wheel, to an excess over desired final throat height equal to approximately one-half the nominal diameter of the grinding wheel grit. The core and supporting pads then are placed on a soft tin or lead rotating lapping plate for removing substantially all of the excess. Finally, the pads and cores are hand-finished on a stationary plate or soft tin, copper or lead. A diamond slurry used during lapping and final finishing, has a controlled alkaline pH in order to simultaneously chemically etch and polish the cores.
|
申请公布号 |
US4837923(A) |
申请公布日期 |
1989.06.13 |
申请号 |
US19880187968 |
申请日期 |
1988.04.29 |
申请人 |
MAGNETIC PERIPHERALS INC. |
发明人 |
BRAR, AMARJIT S.;MIMS, JIMMIE E.;SHARMA, JAGDISH P. |
分类号 |
B24B37/04;G11B5/105;G11B5/193 |
主分类号 |
B24B37/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|