An investigation of 3-D curled chip in machining - Part 1: A mechanics-based analytical model

R. Ghosh; O. W. Dillon; I. S. Jawahir

doi:10.1080/10940349808945661

An investigation of 3-D curled chip in machining - Part 1: A mechanics-based analytical model

R. Ghosh, O. W. Dillon, I. S. Jawahir

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13 Scopus citations

Abstract

This paper presents an analytical model of the 3-D curled chip that is commonly produced in oblique machining. The chip model is based on a 3-D spiral with continuously varying center and curl radius. Stresses in the chip are analyzed by an energy-based approach. Bending and torsional shear stresses in the chip are generated based on input reaction forces. A case study with typical input values of reaction forces is analyzed for finding the magnitude and location of the maximum stresses. Also, the octahedral shear stress is proposed as a comprehensive 3-D chip failure criterion, because it combines the individual effects of the bending and shear stresses.

Original language	English
Pages (from-to)	91-116
Number of pages	26
Journal	Machining Science and Technology
Volume	2
Issue number	1
DOIs	https://doi.org/10.1080/10940349808945661
State	Published - 1998

ASJC Scopus subject areas

General Materials Science
Mechanical Engineering
Industrial and Manufacturing Engineering

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abstract = "This paper presents an analytical model of the 3-D curled chip that is commonly produced in oblique machining. The chip model is based on a 3-D spiral with continuously varying center and curl radius. Stresses in the chip are analyzed by an energy-based approach. Bending and torsional shear stresses in the chip are generated based on input reaction forces. A case study with typical input values of reaction forces is analyzed for finding the magnitude and location of the maximum stresses. Also, the octahedral shear stress is proposed as a comprehensive 3-D chip failure criterion, because it combines the individual effects of the bending and shear stresses.",

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PY - 1998

Y1 - 1998

N2 - This paper presents an analytical model of the 3-D curled chip that is commonly produced in oblique machining. The chip model is based on a 3-D spiral with continuously varying center and curl radius. Stresses in the chip are analyzed by an energy-based approach. Bending and torsional shear stresses in the chip are generated based on input reaction forces. A case study with typical input values of reaction forces is analyzed for finding the magnitude and location of the maximum stresses. Also, the octahedral shear stress is proposed as a comprehensive 3-D chip failure criterion, because it combines the individual effects of the bending and shear stresses.

AB - This paper presents an analytical model of the 3-D curled chip that is commonly produced in oblique machining. The chip model is based on a 3-D spiral with continuously varying center and curl radius. Stresses in the chip are analyzed by an energy-based approach. Bending and torsional shear stresses in the chip are generated based on input reaction forces. A case study with typical input values of reaction forces is analyzed for finding the magnitude and location of the maximum stresses. Also, the octahedral shear stress is proposed as a comprehensive 3-D chip failure criterion, because it combines the individual effects of the bending and shear stresses.

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JO - Machining Science and Technology

JF - Machining Science and Technology

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An investigation of 3-D curled chip in machining - Part 1: A mechanics-based analytical model

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