Machinability of Powder Metallurgy Steels
Machinability of Powder Metallurgy Steels

Author: Andrej Šalak

Publisher: Cambridge Int Science Publishing

Published: 2005

Total Pages: 551

ISBN-13: 1898326827

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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.

Advances in Powder Metallurgy
Advances in Powder Metallurgy

Author: Isaac Chang

Publisher: Elsevier

Published: 2013-08-31

Total Pages: 624

ISBN-13: 085709890X

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Powder metallurgy (PM) is a popular metal forming technology used to produce dense and precision components. Different powder and component forming routes can be used to create an end product with specific properties for a particular application or industry. Advances in powder metallurgy explores a range of materials and techniques used for powder metallurgy and the use of this technology across a variety of application areas.Part one discusses the forming and shaping of metal powders and includes chapters on atomisation techniques, electrolysis and plasma synthesis of metallic nanopowders. Part two goes on to highlight specific materials and their properties including advanced powdered steel alloys, porous metals and titanium alloys. Part three reviews the manufacture and densification of PM components and explores joining techniques, process optimisation in powder component manufacturing and non-destructive evaluation of PM parts. Finally, part four focusses on the applications of PM in the automotive industry and the use of PM in the production of cutting tools and biomaterials.Advances in powder metallurgy is a standard reference for structural engineers and component manufacturers in the metal forming industry, professionals working in industries that use PM components and academics with a research interest in the field. - Discusses the forming and shaping of metal powders and includes chapters on atomisation techniques - Highlights specific materials and their properties including advanced powdered steel alloys, porous metals and titanium alloys - Reviews the manufacture and densification of PM components and explores joining techniques

Ferrous Powder Metallurgy
Ferrous Powder Metallurgy

Author: Andrej Šalak

Publisher: Cambridge International Science Publishing

Published: 1995

Total Pages: 478

ISBN-13:

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Because of the position of ferrous powder metallurgy, the author deals with the theoretical fundamentals and technical and technological aspects of the current state of knowledge in ferrous powder metallurgy so that special attention may be given to all factors influencing parts and materials with the required properties, form and dimensions, stressing their higher economic efficiency. The book also shows the extensive possibilities for further development of ferrous powder metallurgy and should therefore contribute to increasing the level of general and detailed knowledge of experts working in this area and should help in transition from fabrication of parts by conventional methods with all typical economic and ecological shortcomings to fabrication by powder metallurgy methods.

Manganese in Powder Metallurgy Steels
Manganese in Powder Metallurgy Steels

Author: Andrej Šalak

Publisher: Springer Science & Business Media

Published: 2012-07-13

Total Pages: 488

ISBN-13: 190734375X

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This work in three parts presents a summary of the sintered manganese steel properties from 1948 to 2011 involving processing conditions and other characteristics. In the first and third part are given results attained by the authors based on their finding that manganese (cheapest element) during sintering evaporates and by this the vapour cleans the sintering atmospheres from humidity. The second part presents other positive properties of manganese steels in spite of the doubt of oxidation of manganese during sintering and by this excluding the sintering manganese steels what hinderd the use of manganese in production of sintered parts. All results confirm that only manganese vapour according to finding of the authors ensures effective sintering of manganese steels and parts independently on the authors mind. It follows finally from the work that manganese is possible to use for alloying of powder steels sintered also in practice in H/N atmospheres with low purity and also in pure nitrogen - cheaper than hydrogen without some of the associated problems. Current trends in the field are also presented to the reader.

Powder Metallurgy Technology
Powder Metallurgy Technology

Author: G. S. Upadhyaya

Publisher: Cambridge Int Science Publishing

Published: 1997

Total Pages: 174

ISBN-13: 1898326401

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Annotation Contents1 INTRODUCTION; 2 METAL POWDER PRODUCTION; 3 METAL POWDER CHARACTERISTICS; 4 METAL POWDER TRE-AMENT; 5 METAL POWDER COMPACT-ION; 6 SINTERING; 7 HOT CONSOLIDATION; 8 SECONDARY TREATMENT; 9 POWDER INJECTION MOULDING; 10 QUALITY CONTROL OF POWDER METALLURGY MATERIALS.

Machining of Hard Materials
Machining of Hard Materials

Author: J. Paulo Davim

Publisher: Springer Science & Business Media

Published: 2011-02-24

Total Pages: 221

ISBN-13: 1849964505

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Hard machining is a relatively recent technology that can be defined as a machining operation, using tools with geometrically defined cutting edges, of a work piece that has hardness values typically in the 45-70HRc range. This operation always presents the challenge of selecting a cutting tool insert that facilitates high-precision machining of the component, but it presents several advantages when compared with the traditional methodology based in finish grinding operations after heat treatment of work pieces. Machining of Hard Materials aims to provide the reader with the fundamentals and recent advances in the field of hard machining of materials. All the chapters are written by international experts in this important field of research. They cover topics such as: • advanced cutting tools for the machining of hard materials; • the mechanics of cutting and chip formation; • surface integrity; • modelling and simulation; and • computational methods and optimization. Machining of Hard Materials can serve as a useful reference for academics, manufacturing and materials researchers, manufacturing and mechanical engineers, and professionals in machining and related industries. It can also be used as a text for advanced undergraduate or postgraduate students studying mechanical engineering, manufacturing, or materials.

Metal Cutting
Metal Cutting

Author: Edward M. Trent

Publisher: Elsevier

Published: 2015-06-02

Total Pages: 288

ISBN-13: 1483292010

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Expanded and revised to include changes and additions to metal cutting theory. Covers developments in tool materials and industrial practice over the last seven years. Describes the stresses and temperatures acting on cutting tools and explains theirinfluence on performance. Discusses tool wear which determines cutting efficiency. Details machinability and control of tool material structure and composition.

Mechanical Alloying of Ferrous and Non-Ferrous Alloys
Mechanical Alloying of Ferrous and Non-Ferrous Alloys

Author: Shashanka Rajendrachari

Publisher: Elsevier

Published: 2024-06-19

Total Pages: 388

ISBN-13: 0443161526

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This book provides an in-depth exploration of ferrous and non-ferrous alloys including various methods of preparation and production, their mechanical properties, and applications. The advantages of the mechanical alloying processing approach over other traditional powder metallurgical techniques is explained as are which alloys are best suited for this technique. Preparation steps, microstructures, properties, and applications for ferrous and non-ferrous alloys are compared, with insight on which alloys are best suited for preparation by alloying. The advantages and disadvantages of wet and dry milling are outlined. Processing, properties, and applications of high entropy alloys, ODS stainless steel, shape memory alloys, cermets, iron, copper, zinc, tungsten, aluminum, titanium, magnesium, and ceramic-based alloys are also covered, as are different powder preparation techniques and sintering methods. - Outlines the different types of mechanical alloying used to prepare powders, their mechanisms, factors affecting the process, and more - Covers the manufacturing, characteristics, and applications of high entropy alloys, ODS stainless steel, shape memory alloys, magnesium, ceramic-based alloys, and more - Compares preparation of ferrous and non-ferrous alloys, their microstructures, and properties - Discusses the advantages and disadvantages of wet and dry milling