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Author Salsk, A
Title Machinability of Powder Metallurgy Steels
Imprint Cambridge : Cambridge International Science Publishing, 2005
©2005
book jacket
Descript 1 online resource (551 pages)
text txt rdacontent
computer c rdamedia
online resource cr rdacarrier
Note Cover -- Contents -- Introduction -- 1. Introduction -- 2. Powder Metallurgy Processes and Materials -- 2.1. Metal powder production -- 2.1.1 Reduction of iron oxides -- 2.1.2 Water atomisation of metal powders -- 2.1.4 Oil atomisation -- 2.1.5 Inert gas atomisation -- 2.6.3 Heat treatment and surface hardening -- 2.2. Chemical, physical and technological characteristics of metal powders -- 2.2.1 Basic characteristics of some iron and prealloyed powders -- 2.2.2 Impurities -- 2.3. Mixing and compaction -- 2.3.1 Cold die compaction -- 2.3.2 Warm compaction -- 2.3.3 New and developing compaction processes -- 2.3.3.1 Cold die pressing with cross holes -- 2.3.3.2. Warm flow compaction -- 2.3.3.3 High energy compaction -- 2.3.4. Powder forging and cold forging -- 2.3.4.1 Powder forging -- 2.3.4.2 Cold forging -- 2.4. Sintering -- 2.4.1 Sintering temperature and time -- 2.4.2 Sintering atmosphere -- 2.4.3 Carbon -- 2.4.4 Sintering under getter -- 2.4.5 Vacuum sintering -- 2.5. Alloying methods and alloying elements -- 2.5.1. Alloying methods -- 2.5.1.1. Mixed alloy steels -- 2.5.1.2 Diffusion alloyed steels -- 2.5.1.3 Prealloying -- 2.5.1.4 Hybrid systems -- 2.5.1.5 Coating and infiltration -- 2.5.2 Alloying elements -- 2.5.2.1 Alloying elements with low oxygen affinity -- 2.5.2.2 Alloying elements with high oxygen affinity -- 2.5.2.3 Vanadium, silicon and boron -- 2.6. Secondary operations -- 2.6.1 Mechanical -- 2.6.2 Sintered gears from manganese steel without surface densification for high dynamic loading -- 2.6.3.1 Through hardening -- 2.6.3.2 Sinter hardening -- 2.6.3.3 Case (surface) hardening -- 2.6.4 Hardfacing -- 2.6.5 Steam treatment and coating -- 2.7. Porosity and mechanical properties of sintered iron and steel -- 2.7.1 Sintered iron -- 2.7.2 Iron-carbon, iron-copper steel -- 3. PRINCIPLES OF MACHINING OF STEEL -- 3.1. Machining process
3.1.1 Drilling -- 3.1.2 Turning -- 3.1.3 Milling -- 3.1.4 Tapping -- 3.1.5 Grinding -- 3.1.6 Honing -- 3.1.7 Lapping -- 3.1.8 Other processes -- 3.2. Characterisation of machining processes -- 3.2.1 Motions in cutting shaping of metals -- 3.2.2 Cutting tool characteristics -- 3.2.2.1 Cutting edge nomenclature and base characteristics -- 3.2.3 Cutting tool characteristics and nomenclature -- 3.2.2.1 Drilling tools -- 3.2.3.2 Tapping -- 3.2.2.3 Turning -- 3.3. Analysis of the machining process -- 3.3.1 Cutting process -- 3.3.2 Cutting forces -- 3.3.3 Formation of a chip -- 3.3.4 Plasticity during turning -- 3.3.5 Heat factors and cutting process -- 3.3.6 Built-up edge -- 3.3.7 Tool wear and tool life -- 3.3.7.1 Tool wear and speed and feed rates -- 3.3.7.2 Surface finish and surface integrity -- 3.4. Machinability testing -- 3.4.1 Measurement of machinability -- 3.4.2 Machinability testing -- 3.4.2.1 Drilling test -- 3.4.2.2 Turning test -- 3.4.2.3 Face milling test -- 4. CUTTING TOOLS -- 4.1. Cutting tool materials -- 4.1.1 High speed steels -- 4.1.1.1 Ingot metallurgy high speed steels -- 4.1.1.2 Powder metallurgy high speed steels -- 4.1.2 Hardmetals -- 4.1.3 Stellite -- 4.1.4 Cermets -- 4.1.5 Ceramics -- 4.1.6 Cubic boron nitride -- 4.1.7 Polycrystalline diamond (PCD) -- 4.2. Tool coatings and hardening processes -- 4.2.1 Tool coatings -- 4.2.2 Heat and surface hardening treatment processes -- 4.2.3 Residual stresses -- 4.3. Cutting tool wear and tool life -- 4.3.1 Effect of cutting tool type in PM turning -- 4.3.2 Effect of drill geometry in PM drilling -- 4.3.2.1 Effect of cutting edge -- 4.3.2.2 Effect of drill point angle -- 4.4. Cutting tools, workpiece material and surface integrity -- 4.4.1 Effect of drill geometry on surface integrity -- 4.4.2 Effect of metallurgy factors on surface finish
5. FACTORS INFLUENCING THE MACHINABILITY OF PM STEELS -- 5.1. Effect of processing characteristics on machinability -- 5.1.1 Compaction -- 5.1.2 Sintering -- 5.1.3 Sintering atmosphere -- 5.2. Effect of materials characteristics on machinability -- 5.2.1 Effect of porosity on machinability -- 5.2.1.1 Interrupted cutting theory -- 5.2.1.2 Deformation cutting theory -- 5.2.3. Effect of porosity on tool wear and cutting force -- 5.2.4 Effect of porosity on surface finish -- 5.2.5 Effect of porosity on chip formation -- 5.2.6 Effect of composition on machinability -- 5.2.2.1 Effect of carbon on machinability -- 5.2.6.2 Effect of copper on machinability -- 5.2.6.3 Effect of manganese -- 5.2.3 Effect of microstructure on machinability -- 6. MEASURES TO IMPROVE MACHINABILITY OF PM STEELS -- 6.1.Machining aids in powder metallurgy -- 6.1.1 Role of machining aids in machining process -- 6.1.1.1 Effect of machining aids on compressibility -- 6.1.1.2 Machining aids - base characteristics -- 6.1.2 Basic metal sulphide characteristics and effects -- 6.1.2.1 Effect of sulphur -- 6.1.2.2 Thermodynamic stability of sulphides in ferrous matrices -- 6.1.3 Manganese sulphide characteristics -- 6.1.3.1 Low purity manganese sulphide -- 6.1.3.2 High purity manganese sulphide -- 6.1.3.3 Surface coated manganese sulphide -- 6.1.4 Sulphides of other elements -- 6.1.4.1 Molybdenum disulphide -- 6.1.4.2 Other sulphides -- 6.1.5 Characteristics of bismuth, selenium, tellurium and lead as machining aids -- 6.1.5.1 Effect of bismuth -- 6.1.5.2 Effect of tellurium -- 6.1.5.3 Effect of selenium -- 6.1.5.4 Effect of lead -- 6.1.6 Boron nitride, MnX and resin impregnation as machining enhancers -- 6.1.6.1 Boron nitride -- 6.1.6.2 MnX -- 6.1.6.3 Resin impregnation and infiltration -- 6.2. Production processes -- 6.2.1 Microstructure modification -- 6.2.1.1 Controlled cooling
6.2.2 Green machining -- 6.3. Effect of machining operations -- 6.3.1 Tool coating -- 7. MACHINING OF SINTERED STEELS - STATE OF ART -- 7.1. Plain iron and iron-carbon steels -- 7.1.1 Effect of manganese and carbon -- 7.1.2 Effect of S, MnS and MoS2 -- 7.1.2.1 Effect of S, MnS and MoS2 on mechanical properties -- 7.1.2.2 Effect of S, MnS, and MoS2 on machinability -- 7.1.3 Effect of sulphur prealloying -- 7.1.4 Effect of drilling conditions for steels prepared from different iron powder grades -- 7.1.5. Effect of non-suplhide machining aids -- 7.1.5.1 Effect of lead, bismuth and boron nitride -- 7.1.5.2 Effect of resin and oil impregnation -- 7.1.6 Effect of machining aids on surface finish and tool wear -- 7.1.6.1 Effect of machining aids on surface finish -- 7.1.6.2 Effect of carbon, machining aids, and machining conditions on tool wear -- 7.1.7 Effect of machining aids on chip formation -- 7.1.8 Summary -- 7.2. Iron-copper-carbon steel -- 7.2.1 Effect of copper, manganese, and carbon -- 7.2.2 Effect of S, MnS and MoS2 -- 7.2.2.1 Effect of S, MnS and MoS2 on mechanical properties of Fe-Cu-C steels -- 7.2.2.2 Effect of MnS and MoS2 on machinability of Fe-Cu-C steels -- 7.2.2.3 Effect of MnS and MnX -- 7.2.3 Effect of sulphur prealloying -- 7.2.4 Effect of MnS and cutting conditions -- 7.2.4.1 Effect of drill speed -- 7.2.4.2 Effect of feed rate -- 7.2.5 Effect of non-sulphide machining aids -- 7.2.5.1 Effect of boron nitride -- 7.2.5.2 Effect of retained graphite -- 7.2.5.3 Effect of enstatite -- 7.2.5.4 Effect of resin impregnation -- 7.2.5.5 Effect of calcium sulphide -- 7.2.6 Summary -- 7.3. Nickel alloys steels -- 7.3.1 Effect of machining aids -- 7.3.1.1 Effect of MnS on mechanical properties -- 7.3.1.2 Effect of MnS on machinability -- 7.3.1.3 Effect of resin impregnation -- 7.3.2 Dual-phase nickel steel -- 7.3.3 Summary
7.4. Diffusion alloyed steels -- 7.4.1 Effect of machining aids on properties and machinability of Distaloy SA and AB steels -- 7.4.1.1 Effect of MnS -- 7.4.1.2 Effect of various machining aids on mechanical properties and machinability -- 7.4.1.3 Effect of copper and MnS addition on machinability of Distaloy SA and AB steels -- 7.4.2 Effect of machining aids on properties and machinability of Distaloy SE and Distaloy AE steels -- 7.4.2.1 Effect of MnS -- 7.4.2.2 Effect of 'new' machining aid -- 7.4.2.3 Effect of enstatite on machinability -- 7.4.2.4 Effect of MnS and MnX on properties and machinability of hybrid steels based on prealloyed Fe-0.85Mo powder -- 7.4.3 Summary -- 7.5. Chromium, manganese, chromium-manganese and solicon alloyed steels -- 7.5.1 Chromium steels -- 7.5.1.1 Effect of sulphur on machinability of Cr prealloyed sintered steel -- 7.5.2 Manganese steel -- 7.5.3 Chromium-manganese steel -- 7.5.4 Iron-silicon steel -- 7.5.5 Summary -- 7.6. Iron-phosphorus steel -- 7.6.1 Effect of copper and nickel -- 7.6.2 Effect of manganese sulphide -- 7.6.3 Summary -- 7.7. Stainless steel -- 7.7.1 Austenitic stainless steel -- 7.7.1.1 Effect of density and sintering temperature and atmosphere -- 7.7.1.2 Effect of MnS and sintering atmosphere -- 7.7.1.3 Effect of MnS, BN and sintering atmosphere -- 7.7.1.4 Effect of sulphurisation and resin impregnation -- 7.7.1.5 Effect of waterglass, boron nitride and talc -- 7.7.2 Ferritic stainless steel -- 7.7.2.1 Effect of MnS and sintering atmosphere -- 7.7.3 Effect of carbon and nitrogen -- 7.7.4 Effect of drill material and geometry on machining of wrought stainless steels -- 7.7.5 Summary -- Comparing machinability of various steels under different cutting conditions -- 7.8.1 Drilling test with constant thrust force -- 7.8.1.1 Basic properties and machinability -- 7.8.1.2 Microstructure and fracture
7.8.1.3 Effect of drilling speed at constant thrust force on machinability of Distaloy SA steel
The aim of the book is to present knowledge for an overview of all interacting factors in the machining process, including those for improving machinability. They include the properties of basic plain iron and alloyed powders, various additions, compacting and sintering conditions. The effect of porosity, individual alloying elements and microstructure character is considered
Description based on publisher supplied metadata and other sources
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2020. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
Link Print version: Salsk, A. Machinability of Powder Metallurgy Steels Cambridge : Cambridge International Science Publishing,c2005 9781898326823
Subject Differential equations, Elliptic.;Differential equations, Parabolic.;Differential equations, Partial
Electronic books
Alt Author Selecka, M
Danninger, H
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