Claims
- 1. An apparatus for bonding a magnetic recording disk to a hub, said hub having a center portion with a planar drive surface ad also a flange portion, there being a desired axial distance .alpha. between the plane of said drive surface and the side of the magnetic recording disk nearest the drive surface, said apparatus comprising;
- a forming mandril, including an outer annular surface and an inner surface, said inner surface recessed a distance equal to the desired axial distance, .alpha.;
- an anvil adapted to support said hub;
- a hub support including an anvil opening adapted to receive said anvil;
- a base;
- said anvil being fixedly mounted to said base;
- said hub support being mounted to said base and vertically movable relative to said base; and
- said forming mandril being mounted in alignment with said anvil.
- 2. The apparatus of claim 1 in which said forming mandril is an ultrasonic horn and the apparatus further includes means coupled to said horn for causing the ultrasonic vibration thereof.
- 3. The apparatus of claim 2 and also including means for terminating said ultrasonic vibration when electrical contact is made between said horn and said anvil.
Parent Case Info
This is a division of application Ser. No. 07/258,040 filed Oct. 14, 1988, now U.S. Pat. No.4,897,134, which is a division of application Ser. No. 823,190 filed Jan. 27, 1986, now U.S. Pat. No. 4,797,764.
US Referenced Citations (7)
Divisions (2)
|
Number |
Date |
Country |
Parent |
258040 |
Oct 1988 |
|
Parent |
823190 |
Jan 1986 |
|