Mechanics of Cutting and Boring. Part 2: Kinematics of Axial Rotation Machines

This report, which is one of a series on the mechanics of cutting and boring in rock, deals with the kinematics of machines such as rotary drills, augers, tunnel boring machines, corers, and raise borers, in which the rotary cutting unit revolves about an axis that is parallel to the machine's...

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Bibliographic Details
Main Author: Mellor,Malcolm
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1976
Subjects:
Construction Equipment
Materials & Supplies
*CUTTING TOOLS
*DRILLING MACHINES
KINEMATICS
RATES
ROCK
TUNNELS
TUNNELING
EXCAVATION
AUGERS
CUTTING
EARTH HANDLING EQUIPMENT
PERMAFROST
EARTH PENETRATING DEVICES
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA027279
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA027279
Description
Summary:This report, which is one of a series on the mechanics of cutting and boring in rock, deals with the kinematics of machines such as rotary drills, augers, tunnel boring machines, corers, and raise borers, in which the rotary cutting unit revolves about an axis that is parallel to the machine's direction of advance. The discussion and analysis cover the geometry and motion of various components of the cutting system, including such topics as tool trajectories, tool speeds, motions of the more complicated mechanisms, chipping depth, penetration rates, production and clearance of cuttings, tool angles, and spatial distribution of cutters. Worked examples are given to illustrate the application of various equations to practical problems. (Author) See also Part 1, AD-A010 634.

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