Ultrasonic micro machining slider air bearings with diamond faced patterned die
US5478270A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1994 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | Jan 25, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/1871
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of machining a complex pattern into the air bearing surface of a magnetic head slider includes the steps of forming a die with a diamond surface which has a pattern which is a reverse image of the desired pattern for the surface of the slider; placing the die with the pattern of the die facing the surface of the slider; placing an abrasive slurry between the die and the surface of the slider; applying a pressure between the die and the surface of the slider; and ultrasonically vibrating the die and the slider reciprocally with respect to one another to cause the abrasive slurry to grind the desired pattern into the surface of the slider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.