Format:
xi, 85 Seiten
,
Illustrationen
Series Statement:
CRREL Report 77-7
Content:
The report deals with the cutting of rock and similar materials by parallel motion tools. It examines cutting forces and energy requirements, taking into consideration tool geometry, wear, operating conditions, and material properties. After an introductory discussion of terminology, some general principles are outlined, and relevant theoretical ideas on metal cutting and rock cutting are reviewed. The next section, which is the heart of the report, reviews experimental data on the magnitudes and directions of cutting forces. There is a graphical compilation of data, including some from obscure or unpublished sources. The variables covered include chipping depth, rake angle, relief angle, side rake, base angle, tool width, tool compliance, tool speed, tool wear, tool interactions, and material properties. The second major part of the report treats the energetics of cutting. It begins with a short discussion of relevant principles, and continues with a compilation and review of experimental data, covering the same independent variables as the force section. The report ends with a concise summary of general behavior for parallel motion tools.
Note:
MAB0014.001: ZSP-201-77/7
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CONTENTS
Abstract
Preface
Foreword
Introduction
Terminology
Principles of cutting
Forces acting on a single cutter
Theoretical Ideas on cutting
Experimental data on cutting forces
Effect of chipping depth on tool forces
Effect of rake angle on tool forces
Effect of relief angle on cutting forces
Effect of side rake on tool forces
Effect of base angle or face profile on tool forces
Effect of rounding at the cutting edge
Effect of tool width on cutting forces
Tool compliance and force fluctuations
Effect of tool speed on cutting forces
Effect of rock properties on cutting forces
Tool interaction and kerf spacing
Effect of multiple pass cutting on tool forces
Effect of tool wear on cutting forces
Development of wear
Energetics of cutting
Energetics of parallel-motion tools
Variation of specific energy with chipping depth for a single tool
Effect of rake angle on specific energy
Effect of relief angle on specific energy
Effect of side rake on specific energy
Effect of base angle or face profile on specific energy
Effect of tip radius on specific energy
Effect of tool width on specific energy
Effect of tool speed on specific energy
Variation of specific energy with rock properties
Effect of kerf spacing on specific energy
Effect of multiple pass cutting on specific energy
Effect of tool wear on specific energy
General summary
Literature cited
Appendix Α. Additional data for ice
Appendix Β. Conversion factors: U.S. customary and metric units of measurement
In:
CRREL Report, 77-7
In:
Mechanics of cutting and boring, IV
Language:
English
Keywords:
Forschungsbericht
URL:
https://hdl.handle.net/11681/9485
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