Sustainable Engineering Products and Manufacturing Technologies

Kaushik Kumar, Divya Zindani, J. Paulo Davim, J. Paulo Davim

• Publisher: Academic Press
• Year: 2019
• Print ISBN: 9780128165645
• eBook ISBN: 9780128166413
• Topic: Technology & Engineering
• Subtopic: Industrial Engineering
• Index: Technology & Engineering

Sustainable Engineering Products and Manufacturing Technologies provides the reader with a detailed look at the latest research into technologies that reduce the environmental impacts of manufacturing. All points where engineering decisions can influence the environmental sustainability of a product are examined, including the sourcing of non-toxic, sustainable raw materials, how to choose manufacturing processes that use energy responsibly and minimize waste, and how to design products to maximize reusability and recyclability. The subject of environmental regulation is also addressed, with references to both the US and EU and the future direction of legislation.Finally, sustainability factors are investigated alongside other product considerations, such as quality, price, manufacturability and functionality, to help readers design processes and products that are economically viable and environmentally friendly.- Helps readers integrate product sustainability alongside functionality, manufacturability and cost- Describes the latest technologies for energy efficient and low carbon manufacturing- Discusses relevant environmental regulations around the globe and speculates on future directions

Section II

Sustainable Engineering Products

Outline

• Chapter 4 Hybrid welding of 304 austenitic stainless steel
• Chapter 5 Design and construction of helical anchors in soils
• Chapter 6 Design and analysis of heat exchanger by using computational fluid dynamics
• Chapter 7 A CFD-based study of cross-flow turbine for tidal energy extraction
• Chapter 8 Parameter optimization using the surface response technique in automated guided vehicles
• Chapter 9 Evolution of material selection in commercial aviation industry—a review

Chapter 4

Hybrid welding of 304 austenitic stainless steel

Emmanuel O. Ogundimu¹, Esther T. Akinlabi¹ and Mutiu F. Erinosho^1,2, ¹Department of Mechanical Engineering Science, University of Johannesburg, Auckland Park Kingsway Campus, Johannesburg, South Africa, ²Department of Mechanical and Industrial Engineering, University of Namibia, Ongwediva, Namibia

Abstract

Stainless steel is a member of iron from press-based amalgams with a decent erosion protection property. Because of this great quality, stainless steel plates are progressively utilized for building developments and kitchen hardware. Austenitic stainless steels are extraordinary compared to other choices of steels due to excellent mechanical properties. Because of low carbon rate in austenitic stainless steel, intergranular consumption can be controlled. The impacts of welding current and welding process on the mechanical properties of the welded joints were explored for all the three kinds of butt weld joint. Optical examinations were done on the weld zone, transition zone, and heat-affected zone in order to evaluate the impact of the welding parameters and procedure on the weld quality. Tungsten inert gas–metal inert gas (TIG–MIG) crossbreed weld at the current of 130/130 A gave the most noteworthy ultimate tensile strength value of 672 MPa at the welds zone. This outcome firmly showed that the hybridization of TIG and MIG give superior mechanical properties. The normal rate prolongation of 36.5% and 95% joint efficiency was found in sample F4. Stainless steel can be applicable in airplane fabrication, atomic industry, food processing, vehicle, and handling industries.

Keywords

Microstructure; MIG welding; tensile; TIG welding; TIG–MIG welding

Chapter Outline

• 4.1 Introduction 89
  • 4.1.1 Fusion welding 90
  • 4.1.2 Solid-state welding 91
• 4.2 Tungsten inert gas welding process 92
  • 4.2.1 Direct current straight polarity 92
  • 4.2.2 Direct current reverse polarity 93
  • 4.2.3 Alternating current 93
  • 4.2.4 Applications and reviews of tungsten inert gas welding 93
• 4.3 Metal inert gas welding process 94
  • 4.3.1 Applications and reviews of metal inert gas welding 95
• 4.4 Hybrid welding 96
  • 4.4.1 Weld macrostructure and mechanical property of hybrid welding 96
  • 4.4.2 Weldability of Type-304 austenitic stainless steel 97
• 4.5 Experimental work 100
  • 4.5.1 Materials 101
  • 4.5.2 Methods 101
• 4.6 Results and discussion 102
  • 4.6.1 Microstructural evaluation 102
  • 4.6.2 Tensile results 104
• 4.7 Conclusions 106
  • 4.7.1 Future scope 107
• References 107
• Further reading 111

4.1 Introduction

Welding can be described as the strategy where bits of metals are consolidated with the end goal by broad interatomic infiltration. The limits vanished at the weld and the amalgamated precious stones advances over the limits (Ogundimu, 2017). Welding can be accomplished by pressure or heat or by combination of both and with or without filler materials (Classification of Welding Processes I, January 2019). Fundamentally, unification in welding is accomplished by the process of melting (fusion welding) or by the guideline of nuclear holding known as solid-state welding. Combination and pressure weldings are the most widely utilized classifications of welding as they comprise all procedures in both grouping and paying little heed to warm source and welding with or without extra material (Ogundimu, 2017).

4.1.1 Fusion welding

In the fusion welding, otherwise called liquid-state process, heat is provided to the base material (BM), till it is changed over to a delicate state,...

Table of contents

• Cover image
• Title page
• Table of Contents
• Copyright
• List of Contributors
• Editors’ Biography
• Preface
• Section I: Sustainable Manufacturing Processes
• Section II: Sustainable Engineering Products
• Index