Masters Theses

Keywords and Phrases

Cutting forces; Friction coefficient; Machining parameters; Orthogonal cutting of round tube; Shear angle; Titanium machining

Abstract

“Paper 1 presents the results of the investigations on the effects of machining parameters on cutting forces, shear angle and friction in orthogonal turning of titanium alloy tube. Uncoated fine-grained cemented tungsten carbide (WC/Co) and Physical Vapour Deposition (PVD) TiAlN coated grade turning tool inserts, with 5⁰ and 15⁰ rake angles were used under low and high cutting speeds of 120 and 240m/min, at three different feedrates (0.05, 0.075 and 0.1 mm/rev). The experiments were conducted under flooded coolant to reflect what is practically obtainable in manufacturing industries. The experimental results show that cutting forces at two selected cutting speeds of 120 and 240 m/min and the three selected feedrates increased with increase in feedrates for both uncoated and coated cutting tools. Paper 2 presents the results of the effects of machining parameters on cutting forces, shear angle and friction in orthogonal turning of titanium alloy using ribbed solid bar. Uncoated WC/Co and PVD TiAlN coated grade turning tool inserts, with 5⁰ and 16⁰ rake angles were used under low and high cutting speeds of 120 and 240m/min, at three different feedrates (0.05, 0.075 and 0.1 mm/rev). The experiments were conducted under flooded coolant to reflect what is practically obtainable in manufacturing industries. The experimental results show that cutting forces at the two selected cutting speeds of 120 and 240 m/min and three selected feedrates increased with increase in feedrates for both the uncoated and coated cutting tools”--Abstract, page iv.

Advisor(s)

Okafor, A. Chukwujekwu (Anthony Chukwujekwu)

Committee Member(s)

Chandrashekhara, K.
Sarangapani, Jagannathan, 1965-

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical Engineering

Comments

The financial support of National Science Foundation (NSF) under grant no. CMMI 800871 is gratefully acknowledged.

Publisher

Missouri University of Science and Technology

Publication Date

Spring 2013

Journal article titles appearing in thesis/dissertation

  • Investigations on the Effects of Machining Parameters on Cutting Forces, Shear Angle and Friction in Orthogonal Turning of Titanium Alloy Tube
  • Investigations on the Effects of Machining Parameters on Cutting Forces, Shear Angle and Friction in Orthogonal Turning of Titanium Alloy using Ribbed Solid Bar

Pagination

xv, 106 pages

Note about bibliography

Includes bibliographic references.

Rights

© 2013 Hilary Anayochukwu Onyishi, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 12041

Electronic OCLC #

1313117298

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