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Title: Ultrasonic drilling apparatus

Abstract

Apparatus attachable to an ultrasonic drilling machine for drilling deep holes in very hard materials, such as boron carbide, is provided. The apparatus utilizes a hollow spindle attached to the output horn of the ultrasonic drilling machine. The spindle has a hollow drill bit attached at the opposite end. A housing surrounds the spindle, forming a cavity for holding slurry. In operation, slurry is provided into the housing, and into the spindle through inlets while the spindle is rotating and ultrasonically reciprocating. Slurry flows through the spindle and through the hollow drill bit to cleanse the cutting edge of the bit during a drilling operation. 3 figs.

Inventors:
;
Issue Date:
Research Org.:
Los Alamos National Lab., NM (USA)
OSTI Identifier:
6332761
Patent Number(s):
-US-A7208540
Application Number:
ON: DE89010805
Assignee:
Dept. of Energy TIC; ERA-14-025004; EDB-89-072143
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; DRILLING EQUIPMENT; DESIGN; DRILL BITS; INVENTIONS; ROCK DRILLING; SLURRIES; ULTRASONIC WAVES; DISPERSIONS; DRILLING; EQUIPMENT; MIXTURES; SOUND WAVES; SUSPENSIONS; 420206* - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)

Citation Formats

Duran, E.L., and Lundin, R.L. Ultrasonic drilling apparatus. United States: N. p., 1988. Web.
Duran, E.L., & Lundin, R.L. Ultrasonic drilling apparatus. United States.
Duran, E.L., and Lundin, R.L. Mon . "Ultrasonic drilling apparatus". United States.
@article{osti_6332761,
title = {Ultrasonic drilling apparatus},
author = {Duran, E.L. and Lundin, R.L.},
abstractNote = {Apparatus attachable to an ultrasonic drilling machine for drilling deep holes in very hard materials, such as boron carbide, is provided. The apparatus utilizes a hollow spindle attached to the output horn of the ultrasonic drilling machine. The spindle has a hollow drill bit attached at the opposite end. A housing surrounds the spindle, forming a cavity for holding slurry. In operation, slurry is provided into the housing, and into the spindle through inlets while the spindle is rotating and ultrasonically reciprocating. Slurry flows through the spindle and through the hollow drill bit to cleanse the cutting edge of the bit during a drilling operation. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {6}
}