Friction Control of Active-Head Slider During Flying Height Adjustment

Author:

Su Lizhi1,Xu Junguo2,Kurita Masayuki2,Kato Koji1,Adachi Koshi1,Miyake Yoshihiko3

Affiliation:

1. Department of Mechatronics and Precision Engineering, Tohoku University, Sendai 980-8579, Japan

2. Storage Technology Research Center, Hitachi, Ltd., Tsuchiura, Ibaraki 300-0013, Japan

3. Hitachi Global Storage Technologies Japan, Ltd., Odawara, Kanagawa 256-8510, Japan

Abstract

To reduce the risk of head crash when a slider contacts a smooth disk during flying height adjustment, a novel tapping method for reducing the friction and lowering the risk of head crash was developed. An active-head slider was designed and fabricated to demonstrate the usefulness of the tapping approach. It is also found that micro-vibration is significantly effective in avoiding a high friction force and protecting a head from the crash due to head-disk contact during the flying height adjustment.

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Reference20 articles.

1. Interface Tribology for 100Gb∕in2;Menon;Tribol. Int.

2. An Active Slider for Partial Contact Recording;Yeack-Scranton;IEEE Trans. Magn.

3. Development of Novel PZT Thin Films for Active Sliders Based on Head Load/unload on Demand Systems;Tagawa

4. An Active-head Slider with a Piezoelectric Actuator for Controlling Flying Height;Kurita;IEEE Trans. Magn.

5. Flying-height Adjustment of a Magnetic Head Slider with a Piezoelectric Micro-actuator;Kurita;IEEE Trans. Magn.

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