This book intended for shop use tries to familiarize the reader with the peculiari ties of a hardening method which due to its many advantages is now in use,many shops. A general knowledge of the principles of hardening and heat treating is presumed. Introduction 1. The name of the process. Flame hardening is a method derived from the old quench hardening and is used for the surface hardening of heat treatable steels. Flame hardening is so named in analogy to flame cutting as the use of a flame is a distinctive feature of this process as opposed to the use of a furnace. 2. Characteristics of flame hardening. In flame hardening the area to be 6 hardened is heated with a burner of large heat capacity (approx. 0.5 · 10 kcaljhr/ meter of flame lengths or 50,000 BTUfhr/inch of flame length) supplied with a mixture of fuel gas and oxygen. The hardening temperature is thus reached in so short a time at the surface that a heat jam is created, that is, more heat is supplied to the surface than can be dissipated to the interior of the workpiece. As the querr ehing takes place immediately after the heating the penetration of the heat to greater depth is prevented and only the outer layer subject to wear is hardened. The core of the workpiece remains unaffected by this heat treatment in cantrast to the other hardening methods where the entire piece is through heated in a furnace.
Annotation A practical selection guide to help engineers and technicians choose the mot efficient surface hardening techniques that offer consistent and repeatable results. Emphasis is placed on characteristics such as processing temperature, case/coating thickness, bond strength, and hardness level obtained. The advantages and limitations of the various thermochemical, thermal and coating/surface modification technologies are compared
A unique feature is the large number of data sheets provided giving the chemical composition, physical and mechanical properties and the general characteristics of steels and their corresponding international standard grades. Also, given are the heat treatment procedures and sequence of manufacturing operations. With its comprehensive coverage and wealth of practical data and guidelines, the book would be indispensable to heat treaters, planning engineers, material engineers, production engineers and students of metallurgy and production engineering.
Annotation Examines the factors that contribute to overall steel deformation problems. The 27 articles address the effect of materials and processing, the measurement and prediction of residual stress and distortion, and residual stress formation in the shaping of materials, during hardening processes, and during manufacturing processes. Some of the topics are the stability and relaxation behavior of macro and micro residual stresses, stress determination in coatings, the effects of process equipment design, the application of metallo- thermo-mechanic to quenching, inducing compressive stresses through controlled shot peening, and the origin and assessment of residual stresses during welding and brazing. Annotation c. Book News, Inc., Portland, OR (booknews.com)
Cast iron offers the design engineer a low-cost, high-strength material that can be easily cast into a wide variety of useful, and sometimes complex, shapes. This handbook from ASM covers the entire spectrum of one of the most widely used and versatile of all metals.
Heat Treatment Of Steels As An Art To Improve Their Service Performance Has Been Practised Ever Since It Started To Be Used As Tools And Weapons.However, The Scientific Basis Of Heat Treatment Of Steels Became More Apparent Only In The First Half Of This Century And Still Some Gaps Remain In Its Complete Understanding.Earlier Books On Heat Treatment Of Steels Mainly Emphasised The Art And The Empirically Arrived Principles Of Heat Treatment. In The Last Few Decades, Our Understanding Of Phase Transformations And Mechanical Behaviour Of Steels, And Consequently Of Heat Treatment Of Steels, Has Considerably Increased.In This Book On Principles Of Heat Treatment Of Steels The Emphasis Is On The Scientific Principles Behind The Various Heat Treatment Processes Of Steels. Though It Is Expected That The Reader Has Sufficient Background In Phase Transformations And Mechanical Behaviour Of Materials, First Few Chapters Review These Topics With Specific Reference To Steels. Basic Principles Of Various Heat Treatment Processes Of Steels Including Surface Hardening Processes, Are Then Covered In Sufficient Detail To Give A Good Overall Understanding Of These Processes. The Detail Engineering Aspects Are, However, Omitted. These Are Easily Available In Various Handbooks On Heat Treatment. The Book Also Covers Heat Treatment Of Tool Steels And Cast Irons.The Book Has Been Well Written And Can Be Used A Textbook On Heat Treatment For Undergraduate Students. It Is Also A Good Reference Book For Teachers And Researchers In This Area And Engineers In The Industry.
The world s best and most comprehensive reference guide to all aspects of heat treating. Contents include: Heat treating of Steel quenching, tempering, and annealing, continuous annealing, quantitative methods to predict hardenability. Surface Hardening of Steel processing and properties of case hardened materials. Heat Treating Equipment emphasis on furnace design and thermal efficiency. Process and QC Considerations sensors and oxygen probes for temperature/atmosphere/carbon control, statistical process control. Heat Treating of Cast Irons includes data on austempered ductile iron and high-alloy irons. Heat Treating Stainless Steels and Heat Resistant Alloys includes superalloys and refractory metals and alloys. Sections on Heat Treating of Tool Steels and Nonferrous Alloys.
"Second Edition provides new material on coupling ratings, general purpose couplings versus special purpose couplings, retrofitting of lubricated couplings to nonlubricated couplings, torsional damping couplings, torquemeter couplings, and more."
The present book covers the application technology of lasers, focusing more on the vast range of processes than on individual applications, in order to motivate and enable future innovations. The physical basics are presented in the first half of the book. The following examination of application categories and their processes is documented by experts from their practical points of view but always refers back to the underlying physical principles. In this way, readers are free to choose their own individual level of depth in understanding this globally relevant field of innovation.
The Mold-Making Handbook has proven to be an essential resource for the plastics engineer who handles the design and construction of tools for different processing methods, from injection molding and blow molding, to prototyping tools, including their computer-aided design. The present edition has been completely updated with new chapters including micro injection molds, molds for the rubber industry, and rapid prototyping. Separate sections describe the tool materials and various manufacturing and processing methods. Each chapter is self-contained; the proposed synergistic effect is achieved especially when the reader not only reads »his« chapter, but is willing to »look outside the box« of his own specialist field. This handbook is for both the reader who is looking for an introduction to a key area of plastics processing as well as the pronounced specialist to enable quick reading into related technical areas. Written by experts from the industry, the book captures the current state of the technique. The Mold-Making Handbook will prove extremely useful for engineers, designers, processors, technical salesmen, and students interested in all aspects of mold construction. Contents Molds for Various Processing Methods Mold Design Materials for Tool Making Manufacturing and Machining Methods Ordering and Operation of Molds