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[null,"1.","Record Nr.",null,"UNINA9910450185203321"]
[null,null,"Autore",null,"Šalak Andrej"]
[null,null,"Titolo",null,"Machinability of powder metallurgy steels [[electronic resource] /] / A. Šalak, M. Selecká and H. Danninger"]
[null,null,"Pubbl/distr/stampa",null,"Cambridge, : Cambridge International Science Publishing, 2005"]
[null,null,"ISBN",null,"1-280-23149-1"]
[{"$nulls":4},"9786610231492"]
[{"$nulls":4},"1-4237-2289-2"]
[{"$nulls":4},"1-904602-44-4"]
[null,null,"Descrizione fisica",null,"1 online resource (551 p.)"]
[null,null,"Disciplina",null,"671.37"]
[null,null,"Soggetti",null,"Powder metallurgy"]
[{"$nulls":4},"Metallurgy"]
[{"$nulls":4},"Electronic books."]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and index."]
[null,null,"Nota di contenuto",null,"Cover; Contents; Introduction; 1. Introduction; 2. Powder Metallurgy Processes and Materials; 2.1. Metal powder production; 2.6.3 Heat treatment and surface hardening; 2.2. Chemical, physical and technological characteristics of metal powders; 2.3. Mixing and compaction; 2.4. Sintering; 2.5. Alloying methods and alloying elements; 2.6. Secondary operations; 2.7. Porosity and mechanical properties of sintered iron and steel; 3. PRINCIPLES OF MACHINING OF STEEL; 3.1. Machining process; 3.2. Characterisation of machining processes; 3.3. Analysis of the machining process"]
[{"$nulls":4},"3.4. Machinability testing4. CUTTING TOOLS; 4.1. Cutting tool materials; 4.2. Tool coatings and hardening processes; 4.3. Cutting tool wear and tool life; 4.4. Cutting tools, workpiece material and surface integrity; 5. FACTORS INFLUENCING THE MACHINABILITY OF PM STEELS; 5.1. Effect of processing characteristics on machinability; 5.2. Effect of materials characteristics on machinability; 6. MEASURES TO IMPROVE MACHINABILITY OF PM STEELS; 6.1.Machining aids in powder metallurgy; 6.2. Production processes; 6.3. Effect of machining operations; 7. MACHINING OF SINTERED STEELS - STATE OF ART"]
[{"$nulls":4},"7.1. Plain iron and iron-carbon steels7.2. Iron-copper-carbon steel; 7.3. Nickel alloys steels; 7.4. Diffusion alloyed steels; 7.5. Chromium, manganese, chromium-manganese and solicon alloyed steels; 7.6. "]
[{"$nulls":4},"Iron-phosphorus steel; 7.7. Stainless steel; Comparing machinability of  various steels under different cutting conditions; 7.9. Standardizing machinability of PM steels; 7.10. Special processing and machining routes for high strength - hardness PM steels; 7.11. Machining of powder forged steels; 8. RECOMMENDATIONS FOR MACHINING PM STEELS; 8.1.Recommendations for drilling"]
[{"$nulls":4},"8.2. Recommendations for turning8.3. Tapping and threading; 8.4. Recommendations and cutting data for milling, reaming, broaching and green machining; 8.5. Recommendations for machining with geometrically not defined edge; 8.6. Cool-lubrication in steel machining; 8.7. Parameters for optimising machining of PM steels; 9. APPENDIX; 9.1. Relationship between hardness values determined by Vickers and Rockwell methods; 9.2. Chemical composition and designation of PM steels; 9.3. Trade designation and base characteristics; 9.4. Characteristic types of wear of hard metal inserts; References; Index"]
[null,null,null,"Sommario/riassunto","The aim of the book is to present knowledge for an overview of all interacting factors in the machining process, including those for improving machinability. They include the properties of basic plain iron and alloyed powders, various additions, compacting and sintering conditions. The effect of porosity, individual alloying elements and microstructure character is considered."]
[null,"2.","Record Nr.",null,"UNINA9910669807403321"]
[null,null,"Autore",null,"Otto Daniel"]
[null,null,"Titolo",null,"Distributed Learning Ecosystems : Concepts, Resources, and Repositories / / edited by Daniel Otto, Gianna Scharnberg, Michael Kerres, Olaf Zawacki-Richter"]
[null,null,"Pubbl/distr/stampa",null,"Wiesbaden : , : Springer Fachmedien Wiesbaden : , : Imprint : Springer VS, , 2023"]
[null,null,"ISBN",null,"9783658387037"]
[{"$nulls":4},"3658387033"]
[null,null,"Edizione",null,"[1st ed. 2023.]"]
[null,null,"Descrizione fisica",null,"1 online resource (304 pages)"]
[null,null,"Classificazione",null,"EDU000000EDU015000EDU046000SCI063000"]
[null,null,"Disciplina",null,"378"]
[null,null,"Soggetti",null,"Education, Higher"]
[{"$nulls":4},"Adult education"]
[{"$nulls":4},"Technical education"]
[{"$nulls":4},"Teaching"]
[{"$nulls":4},"Teachers - Training of"]
[{"$nulls":4},"Higher Education"]
[{"$nulls":4},"Adult Education"]
[{"$nulls":4},"Technology and Design education"]
[{"$nulls":4},"Pedagogy"]
[{"$nulls":4},"Teaching and Teacher Education"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,"Nota di contenuto",null,"Distributed Learning Ecosystems -- Distributed learning ecosystems in education -- The shift toward openness in education and the implications for learning ecosystems and ecologies -- The role of institutional repositories in higher education -- The Typologies of (Open) Online Courses and their Dimensions, Characteristics and Relationships with Distributed Learning Ecosystems, Open Educational Resources, and Massive Open Online Courses -- Open textbooks in higher education teaching -- Reuse of OER, a process model approach -- Quality of OER -- Development of an Austrian OER certification for higher education institutions and their employees -- Creating More Generous and Sustainable Educational Futures with OER -- Reflecting Open Practices on Digital Infrastructures -- The Technical Specifications and Requirements for Connecting OER Repositories Using "]
[{"$nulls":4},"the LOM Standard -- Version management in a distributed infrastructure for Open Educational Resources -- Developing a metadata profile for higher education OER repositories -- A Trusted Learning Analytics Dashboard for displaying OER."]
[null,null,null,"Sommario/riassunto","This open-access book is based on the observation that learning ecosystems are increasingly established in higher education institutions. However, an important aspect that is still missing is their interconnectedness. Consequently, the book intends to close this gap by introducing the concept of a distributed learning ecosystem (DLE). A DLE follows the idea of establishing an interlinkage between decentralised learning ecosystems (consisting of content repositories and educational resources) and thus serves as an integrated approach that enables learners to access and use learning content and share resources. About the Editors Dr. Daniel Otto is currently interim professor for the chair of digital education in schools at the University of Oldenburg. His research focuses on educational technology, particularly Open Educational Resources (OER) in higher education. Dr. Gianna Scharnberg holds a PhD from the University of Duisburg-Essen and has conducted several research projects in adult education. She currently works as a consultant for E-Learning and Knowledge Transfer for the German Foundation for Commitment and Volunteering. Prof. Dr. Michael Kerres is professor of educational science at the University Duisburg-Essen. He holds the chair of educational media and knowledge management and is director of the University's Learning Lab. Prof. Dr. Olaf Zawacki-Richter has been involved in the design and development of digital study programs for over 20 years. He is professor of educational technology at the University of Oldenburg and director of the Center for Open Education Research (COER) at the Institute of Education."]