The Laser Cutting Process - 1st Edition - ISBN: 9780128129821

The Laser Cutting Process

1st Edition

Analysis and Applications

Authors: Bekir Sami Yilbas
Paperback ISBN: 9780128129821
Imprint: Elsevier
Published Date: 13th November 2017
Page Count: 328
Tax/VAT will be calculated at check-out Price includes VAT (GST)

Institutional Access

Secure Checkout

Personal information is secured with SSL technology.

Free Shipping

Free global shipping
No minimum order.

Description

The Laser Cutting Process: Analysis and Applications presents a comprehensive understanding of the laser cutting process and its practical applications. The book includes modeling, such as thermal and stress analysis, along with lamp parameter analysis for kerf width predictions and their practical applications, such as laser cutting of metallic and non-metallic materials and assessment of quality. The book provides analytical considerations for laser cutting, the importance of the affecting parameters, stress levels formed in the cutting section, cutting efficiency and cut morphology and metallurgy. It is designed to be used by individuals working in laser machining and high energy processing.

Key Features

  • Fills the gap between a fundamental understanding of the laser cutting process and the shortcomings of the industrial (practical) applications
  • Discusses new developments in the laser cutting process of difficult to cut materials
  • Includes thermal analysis for various metallic and non-metallic materials
  • Provides information on Quality Assessment Methods

Readership

Academics, researchers, graduate students in the area of laser and thermal processing, mechanical and manufacturing fields

Table of Contents

CHAPTER 1 - INTRODUCTION

 

CHAPTER 2 – THERMAL ANALYSIS OF LASER CUTTING PROCESS

 

2.1 Introduction

2.2 Absorption of Laser Beam Intensity

2.3 Temperature and Stress Fields in Relation to Key-Hole Formation

2.4 Jet Impingement and Flow Field in the Key-Hole

 

CHAPTER 3 - ANALYTICAL METHODS IN LASER CUTTING

 

3.1 Introduction

3.2 Pulse Heating Analysis of Solid Surfaces in Relation to Initiation of Laser Cutting

3.3 Laser Solid Phase Heating and Convection Cooling at the Surface Resembling Assisting Gas Effect

3.4 Thermal Stress Field Generated Due to Convection Boundary at the Surface

3.5 Two-Dimensional Heating

3.6 Transient Evaporation

3.7 Three-Dimensional Heating and Stationary Source at Surface

3.8 Laser Cutting Process and Striation Formation

3.9 Lump Parameter Analysis for Kerf Width Formulation

3.10 Analytical Assessment of Assisting Gas

3.10.1 Laminar Boundary Layer Consideration

3.10.1.1 Frozen Boundary Layer Approximations

3.10.1.2 Boundary Layer Heat Transfer

3.10.1.3 Heat Transfer to the Liquid Metal

3.10.2 Turbulence Boundary Layer Consideration

        1. Boundary Layer Consideration
        2. Heat Transfer To The Liquid Phase
        3. Method of Solution

3.10.2.4 Findings of Turbulent Boundary Treatment

3.11 Analysis of Dross Formation during Cutting

3.11.1 Formulation of Liquid Layer Thickness and Velocity

3.11.2 Dross Formation

3.11.3 Findings of Dross Ejection

 

CHAPTER 4 - LASER CUTTING QUALITY ASSESSMENT AND NUMERICAL METHODS FOR MODELLING OF CUTTING

 

4.1 Introduction

4.2 Striation Pattern Assessments

4.3 Factorial Analysis for Laser Cutting Quality Assessments

4.3.1 Qualitative Analysis

4.3.2 Quantitative Analysis

4.3.3 Evaluation of Cut Quality

4.4 Numerical Investigation of Laser Cutting Process

4.4.1 Heating Analysis

4.4.2 Thermal Stress Analysis

4.4.3 Numerical Solution

4.5 3-Dimensional Heating Considerations for Laser Cutting

4.5.1 Mathematical Formulation of Heating Situation

4.5.2 Numerical Method and Simulation

4.5.3 Case Studies on Impinging Gas Jet Effects on Kerf Sites

4.5.3.1 Effect of Kerf Wedge Angle on Heat Transfer Rates and Skin Friction

4.5.3.2 Influence of Kerf Thickness on Heat Transfer and Skin Friction

4.5.3.3 Influence of Assisting Gas Type on the Nusselt Number and the Skin Friction

4.5.3.4 Effect of Jet Velocity on Heat Transfer Rates

4.6 Entropy Analysis of Laser Cutting Process

 

CHAPTER 5 – SOME APPLICATIONS OF LASER CUTTING

 

5.1 Introduction

5.2 Heating and Stress Analysis

5.2.1 Thermal Analysis

5.2.2 Thermal Stress Analysis

5.3 Numerical Simulations

5.4 Laser High Thermal Conductive Materials

5.4.1 Straight Cutting of Bronze

5.4.2 Circular Cutting of Bronze

5.5 Laser Cutting of High Elastic Modules and Materials

5.5.1 Laser Straight Cutting of Alumina Tiles

5.5.2 Laser Circular Cutting of Alumina Tiles

5.5.3 Laser Rectangular Cutting of Alumina Tiles

5.5.4 Laser Cutting of Aluminum Foam

5.5.4.1 Laser Straight Cutting of Aluminum Foam

5.5.4.2 Laser Circular Cutting of Aluminum Foam

5.5.4.3 Laser Triangular Cutting of Aluminum Foam

5.5.5 Laser Cutting of Kevlar

5.5.6 Laser Cutting of a Carbon/Carbon Multi-Lamella Plain-Weave Structure

5.5.7 Wedge Cutting of Mild Steel

 

CHAPTER 6 - CONCLUDING REMARKS

 

6.1 Analytical Treatment of Laser Cutting Process

6.2 Numerical Analysis Associated With Laser Cutting

6.3 Laser Cutting of Difficult to Cut Materials

6.4 Laser Cutting of Kevlar

6.5 Laser Cutting of Composites

6.6 Laser Cutting of Wedges in Steel

Details

No. of pages:
328
Language:
English
Copyright:
© Elsevier 2018
Published:
Imprint:
Elsevier
Paperback ISBN:
9780128129821

About the Author

Bekir Sami Yilbas

Bekir S. Yilbas received his PhD in Mechanical Engineering from the Birmingham University. He was awarded the Doctor of Engineering in 2005 by Birmingham University owing to his significant contribution to his field of study. He has published over 600 journal papers in reputable international journals and presented over 100 papers at international conferences. He has served as an editorial board member of international journals, including International Journal of Machine Tool and Manufacture Design, Research and Application, International Journal of Subsurface Sensing Technologies and Applications, Journal of Materials Processing Technology, Journal of Achievements in Materials and Manufacturing Engineering, International Journal of Nano-manufacturing and Archives of Materials Science and Engineering. He has received numerous awards as recognition of his research work.

Affiliations and Expertise

Mechanical Engineering Department, King Fahd University of Petroleum and Minerals, Saudi Arabia