Surface Hardening of an AISI D6 Cold Work Steel Using a Fiber Laser

Surface Hardening of an AISI D6 Cold Work Steel Using a Fiber Laser PDF Author: Flavia Aline Goia
Publisher:
ISBN:
Category : Case hardening
Languages : en
Pages : 13

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Book Description
Laser surface treatments represent some of the most advanced and versatile processes for enhanced materials applications. Laser hardening is a technique to generate a hard wear-resistant surface microstructure in metals due to the rapid heating and cooling cycles imposed by a laser beam. This work intends to understand the influence of the laser variables on hardness after laser hardening of an AISI D6 steel. A fiber laser, which is a new source available for industrial applications, has been used. The overall absorptivity measured was ∼37 % and the laser treatment produced two different zones: Remelted and heat-affected. The surface layer was remelted and composed of martensite and retained austenite. The region next to the free surface is composed of primary austenite dendrites with martensite plates with hardness between 400 and 500 HV. The region called the heat-affect zone is composed of martensite, retained austenite, and carbides and has a hardness up to 800 HV. The case depth in laser treated samples was between 1 and 2 mm.

Surface Hardening of an AISI D6 Cold Work Steel Using a Fiber Laser

Surface Hardening of an AISI D6 Cold Work Steel Using a Fiber Laser PDF Author: Flavia Aline Goia
Publisher:
ISBN:
Category : Case hardening
Languages : en
Pages : 13

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Book Description
Laser surface treatments represent some of the most advanced and versatile processes for enhanced materials applications. Laser hardening is a technique to generate a hard wear-resistant surface microstructure in metals due to the rapid heating and cooling cycles imposed by a laser beam. This work intends to understand the influence of the laser variables on hardness after laser hardening of an AISI D6 steel. A fiber laser, which is a new source available for industrial applications, has been used. The overall absorptivity measured was ∼37 % and the laser treatment produced two different zones: Remelted and heat-affected. The surface layer was remelted and composed of martensite and retained austenite. The region next to the free surface is composed of primary austenite dendrites with martensite plates with hardness between 400 and 500 HV. The region called the heat-affect zone is composed of martensite, retained austenite, and carbides and has a hardness up to 800 HV. The case depth in laser treated samples was between 1 and 2 mm.

Proceedings of the XII All Russian Scientific Conference on Current Issues of Continuum Mechanics and Celestial Mechanics

Proceedings of the XII All Russian Scientific Conference on Current Issues of Continuum Mechanics and Celestial Mechanics PDF Author: Maxim Yu Orlov
Publisher: Springer Nature
ISBN: 9819718724
Category : Continuum mechanics
Languages : en
Pages : 383

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Book Description
Zusammenfassung: This book presents peer reviewed articles from The XII All Russian Scientific Conference on Current issues of Continuum Mechanics and Celestial Mechanics (XII CICMCM), held on 15-17 November 2023, at Toms in, Russia. It summarizes the latest studies on shock and explosive loading of promising materials, including functionally graded materials, porous materials, multilayer ceramic structures, advanced materials and etc. It provides a platform for researchers (and professionals) to exchange ideas and present the latest findings in these important and growing areas of applied physics and engineering

Laser Surface Hardening of Steels

Laser Surface Hardening of Steels PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 52

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Book Description
Study of the laser hardening response of AISI 01, AISI 4340, carburized AISI 1020, and carburized AISI 9310 steels in various prior heat treatment conditions. The laser operating parameter combinations are established to produce maximum hardened case depths without surface melting.

Laser Surface Hardening

Laser Surface Hardening PDF Author: Janez Grum
Publisher:
ISBN:
Category :
Languages : en
Pages : 132

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Book Description


Fundamentals of Fluid Film Lubrication

Fundamentals of Fluid Film Lubrication PDF Author: Bernard J. Hamrock
Publisher: CRC Press
ISBN: 1135537755
Category : Technology & Engineering
Languages : en
Pages : 794

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Book Description
Specifically focusing on fluid film, hydrodynamic, and elastohydrodynamic lubrication, this edition studies the most important principles of fluid film lubrication for the correct design of bearings, gears, and rolling operations, and for the prevention of friction and wear in engineering designs. It explains various theories, procedures, and equations for improved solutions to machining challenges. Providing more than 1120 display equations and an introductory section in each chapter, Fundamentals of Fluid Film Lubrication, Second Edition facilitates the analysis of any machine element that uses fluid film lubrication and strengthens understanding of critical design concepts.

Fastener Design Manual

Fastener Design Manual PDF Author: Richard T. Barrett
Publisher:
ISBN: 9781304069542
Category :
Languages : en
Pages :

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Book Description


Advances in Micro and Nano Manufacturing and Surface Engineering

Advances in Micro and Nano Manufacturing and Surface Engineering PDF Author: M. S. Shunmugam
Publisher: Springer Nature
ISBN: 9813294256
Category : Technology & Engineering
Languages : en
Pages : 720

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Book Description
This volume presents research papers on micro and nano manufacturing and surface engineering which were presented during the 7th International and 28th All India Manufacturing Technology, Design and Research conference 2018 (AIMTDR 2018). The papers discuss the latest advances in miniature manufacturing, the machining of miniature components and features as well as improvement of surface properties. This volume will be of interest to academicians, researchers, and practicing engineers alike.

Proceedings of International Conference on Intelligent Manufacturing and Automation

Proceedings of International Conference on Intelligent Manufacturing and Automation PDF Author: Hari Vasudevan
Publisher: Springer Nature
ISBN: 9811544859
Category : Technology & Engineering
Languages : en
Pages : 831

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Book Description
This book gathers selected papers presented at the Second International Conference on Intelligent Manufacturing and Automation (ICIMA 2020), which was jointly organized by the Departments of Mechanical Engineering and Production Engineering at Dwarkadas J. Sanghvi College of Engineering (DJSCE), Mumbai, and by the Indian Society of Manufacturing Engineers (ISME). Covering a range of topics in intelligent manufacturing, automation, advanced materials and design, it focuses on the latest advances in e.g. CAD/CAM/CAE/CIM/FMS in manufacturing, artificial intelligence in manufacturing, IoT in manufacturing, product design & development, DFM/DFA/FMEA, MEMS & nanotechnology, rapid prototyping, computational techniques, nano- & micro-machining, sustainable manufacturing, industrial engineering, manufacturing process management, modelling & optimization techniques, CRM, MRP & ERP, green, lean & agile manufacturing, logistics & supply chain management, quality assurance & environmental protection, advanced material processing & characterization of composite & smart materials. The book is intended as a reference guide for future researchers, and as a valuable resource for students in graduate and doctoral programmes.

Applied Metallurgy and Corrosion Control

Applied Metallurgy and Corrosion Control PDF Author: Amiya Kumar Lahiri
Publisher: Springer
ISBN: 9811046840
Category : Technology & Engineering
Languages : en
Pages : 558

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Book Description
This book serves as a comprehensive resource on metals and materials selection for the petrochemical industrial sector. The petrochemical industry involves large scale investments, and to maintain profitability the plants are to be operated with minimum downtime and failure of equipment, which can also cause safety hazards. To achieve this objective proper selection of materials, corrosion control, and good engineering practices must be followed in both the design and the operation of plants. Engineers and professional of different disciplines involved in these activities are required to have some basic understanding of metallurgy and corrosion. This book is written with the objective of servings as a one-stop shop for these engineering professionals. The book first covers different metallic materials and their properties, metal forming processes, welding, and corrosion and corrosion control measures. This is followed by considerations in material selection and corrosion control in three major industrial sectors, oil & gas production, oil refinery, and fertilizers. The importance of pressure vessel codes as well as inspection and maintenance repair practices have also been highlighted. The book will be useful for technicians and entry level engineers in these industrial sectors. Additionally, the book may also be used as primary or secondary reading for graduate and professional coursework.

Extrusion

Extrusion PDF Author: Harold F. Giles Jr
Publisher: William Andrew
ISBN: 1437734820
Category : Technology & Engineering
Languages : en
Pages : 638

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Book Description
The second edition of Extrusion is designed to aid operators, engineers, and managers in extrusion processing in quickly answering practical day-to-day questions. The first part of the book provides the fundamental principles, for operators and engineers, of polymeric materials extrusion processing in single and twin screw extruders. The next section covers advanced topics including troubleshooting, auxiliary equipment, and coextrusion for operators, engineers, and managers. The final part provides applications case studies in key areas for engineers such as compounding, blown film, extrusion blow molding, coating, foam, and reprocessing. This practical guide to extrusion brings together both equipment and materials processing aspects. It covers basic and advanced topics, for reference and training, in thermoplastics processing in the extruder. Detailed reference data are provided on such important operating conditions as temperatures, start-up procedures, shear rates, pressure drops, and safety. - A practical guide to the selection, design and optimization of extrusion processes and equipment - Designed to improve production efficiency and product quality - Focuses on practical fault analysis and troubleshooting techniques