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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.

Inventors:
 [1];  [2]
  1. Santa Fe, NM
  2. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
866947
Patent Number(s):
4828052
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B28 - WORKING CEMENT, CLAY, OR STONE B28D - WORKING STONE OR STONE-LIKE MATERIALS
B - PERFORMING OPERATIONS B24 - GRINDING B24B - MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ultrasonic; drilling; apparatus; attachable; machine; deep; holes; hard; materials; boron; carbide; provided; utilizes; hollow; spindle; attached; output; horn; drill; bit; opposite; housing; surrounds; forming; cavity; holding; slurry; operation; inlets; rotating; ultrasonically; reciprocating; flows; cleanse; cutting; edge; apparatus utilizes; cutting edge; boron carbide; drill bit; slurry flow; ultrasonic drilling; drilling apparatus; drilling operation; housing surrounds; hard material; hard materials; drilling machine; drilling deep; /175/451/

Citation Formats

Duran, Edward L, and Lundin, Ralph L. Ultrasonic drilling apparatus. United States: N. p., 1989. Web.
Duran, Edward L, & Lundin, Ralph L. Ultrasonic drilling apparatus. United States.
Duran, Edward L, and Lundin, Ralph L. Sun . "Ultrasonic drilling apparatus". United States. https://www.osti.gov/servlets/purl/866947.
@article{osti_866947,
title = {Ultrasonic drilling apparatus},
author = {Duran, Edward L and Lundin, Ralph 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}