Resilient materials normally present problem in obtaining accurate and uniform hole size and position. Tool is fabricated from stiff metal rod such as tungsten or carbon steel that has diameter slightly smaller than required hole. Piercing/centering point is ground on one end of rod. Rod is then plasma-sprayed (flame-sprayed) with suitable hard abrasive coating. High-speed, slow-feed operation of tool is necessary for accurate holes, and this can be done with drill press, hard drill, or similar machines.
Abrasive drill for resilient materials
NASA Tech Briefs ; 5 , 3
1981-01-01
Miscellaneous
No indication
English
Resilient Moduli of Granular Materials
Online Contents | 1994
|Resilient Moduli of Granular Materials
British Library Online Contents | 1994
|Abrasive waterjet cutting of aerospace materials
Tema Archive | 1989
|Abrasive waterjet machining of aerospace materials
Tema Archive | 2001
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