Machinability Of Powder Metallurgy Steels
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Machinability of Powder Metallurgy Steels
Author | : Andrej Šalak,Marcela Selecká,Herbert Danninger |
Publsiher | : Cambridge Int Science Publishing |
Total Pages | : 551 |
Release | : 2005 |
Genre | : Technology & Engineering |
ISBN | : 9781898326823 |
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The machinability of powder metallurgy steels is poorer compared with wrought steels of appropriate composition and/or mechanical [properties. The reason for it is a larger number of material and processing variables affecting the final properties of a sintered material. Therefore the machining of powder metallurgy (PM) steels is a permanent subject of investigation and practice. The aim of the book is to make on the basis of present knowledge an overview of all interacting factors in machining process including those applied for the improvement of the machinability. There are the properties of basic plain iron and alloyed powders, various additions, compaction and sintering conditions. Effect of porosity, individual alloying elements and microstructure character is considered. The description of the basic machining processes with their characteristics and with the characteristics of the tool geometry belongs to the mentioned factors. For the improvement of machinability of PM steels different machining aids, as S, MnS, MoS2 and other are frequently used and their chemical and physical characteristics are given. The effect of various machining aids used on machinability of sintered plain iron, iron-carbon and of steels alloyed with Cu, Ni, Mo, Cr, Mn including powder forged steels with very different mechanical properties and very different microstructures is analysed and summarized. The high-speed steel, hardmetal and other tools with their geometry as the part of the cutting process are described in relation to the sintered powder materials. The recommendations for machining of various steels enclose the present knowledge about the machinability of powder metallurgy steels.
Machinability Of Powder Metalluargy Steels
Author | : Salak,Salak Andrej |
Publsiher | : Cambridge International Science Pub |
Total Pages | : 552 |
Release | : 2008-01-01 |
Genre | : Electronic Book |
ISBN | : 8130909383 |
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Powder Metallurgy Stainless Steels
Author | : Erhard Klar,Prasan K. Samal |
Publsiher | : ASM International |
Total Pages | : 247 |
Release | : 2007-01-01 |
Genre | : Technology & Engineering |
ISBN | : 9781615030521 |
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The Influence of Some Metallurgical Variables on the Machinability of Powder Metallurgy Steels
Author | : Phillip John Andersen |
Publsiher | : Unknown |
Total Pages | : 558 |
Release | : 1977 |
Genre | : Powder metallurgy |
ISBN | : WISC:89056354798 |
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Advances in powder metallurgy
Author | : H. Danninger,C. Gierl-Mayer |
Publsiher | : Elsevier Inc. Chapters |
Total Pages | : 624 |
Release | : 2013-08-31 |
Genre | : Technology & Engineering |
ISBN | : 9780128088593 |
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Ferrous powder metallurgy (PM) makes up the majority of powder metallurgy products with regard to tonnage. Improving performance is the main trend for pressed and sintered parts, in particular the introduction of cost-effective alloy elements such as Cr and Mn. Furthermore, much can be gained in ferrous PM by elaborate secondary operations. In metal injection moulding (MIM) products, there is a clear trend towards increasingly complex shapes and microsized parts. PM tool steels offer a much finer and fully isotropic microstructure compared to their wrought counterparts and the carbide content may be much higher, resulting in excellent application properties.
Advances in powder metallurgy
Author | : N. Chawla,J.J. Williams |
Publsiher | : Elsevier Inc. Chapters |
Total Pages | : 624 |
Release | : 2013-08-31 |
Genre | : Technology & Engineering |
ISBN | : 9780128088685 |
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Sintered ferrous powder metallurgy (PM) components are replacing wrought alloys in many applications, owing to their low cost, high performance and ability to be processed to near-net shape. The fracture and fatigue behavior of these materials is very important. In this chapter the microstructure, tensile and fatigue behavior of sintered steels is reviewed.
Powder Metallurgy
Author | : G. Dowson |
Publsiher | : Springer |
Total Pages | : 188 |
Release | : 1990 |
Genre | : Technology & Engineering |
ISBN | : UOM:39015017927131 |
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Powder metallurgy, commonly designated by its initial letters asPM or PM, may be defined as the production of useful artefacts from metal powder without passing through the molten state. This introductory text examines the processes by which these powders are produced, and explores their behaviour in the subsequent consolidation stages.
Metal Cutting Theory and Practice
Author | : David A. Stephenson,John S. Agapiou |
Publsiher | : CRC Press |
Total Pages | : 1420 |
Release | : 2018-09-03 |
Genre | : Technology & Engineering |
ISBN | : 9781315360317 |
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A Complete Reference Covering the Latest Technology in Metal Cutting Tools, Processes, and Equipment Metal Cutting Theory and Practice, Third Edition shapes the future of material removal in new and lasting ways. Centered on metallic work materials and traditional chip-forming cutting methods, the book provides a physical understanding of conventional and high-speed machining processes applied to metallic work pieces, and serves as a basis for effective process design and troubleshooting. This latest edition of a well-known reference highlights recent developments, covers the latest research results, and reflects current areas of emphasis in industrial practice. Based on the authors’ extensive automotive production experience, it covers several structural changes, and includes an extensive review of computer aided engineering (CAE) methods for process analysis and design. Providing updated material throughout, it offers insight and understanding to engineers looking to design, operate, troubleshoot, and improve high quality, cost effective metal cutting operations. The book contains extensive up-to-date references to both scientific and trade literature, and provides a description of error mapping and compensation strategies for CNC machines based on recently issued international standards, and includes chapters on cutting fluids and gear machining. The authors also offer updated information on tooling grades and practices for machining compacted graphite iron, nickel alloys, and other hard-to-machine materials, as well as a full description of minimum quantity lubrication systems, tooling, and processing practices. In addition, updated topics include machine tool types and structures, cutting tool materials and coatings, cutting mechanics and temperatures, process simulation and analysis, and tool wear from both chemical and mechanical viewpoints. Comprised of 17 chapters, this detailed study: Describes the common machining operations used to produce specific shapes or surface characteristics Contains conventional and advanced cutting tool technologies Explains the properties and characteristics of tools which influence tool design or selection Clarifies the physical mechanisms which lead to tool failure and identifies general strategies for reducing failure rates and increasing tool life Includes common machinability criteria, tests, and indices Breaks down the economics of machining operations Offers an overview of the engineering aspects of MQL machining Summarizes gear machining and finishing methods for common gear types, and more Metal Cutting Theory and Practice, Third Edition emphasizes the physical understanding and analysis for robust process design, troubleshooting, and improvement, and aids manufacturing engineering professionals, and engineering students in manufacturing engineering and machining processes programs.