The behaviour of graphitized steels in machining processes
| Autor: | Friedrich Kuster, Hans Roelofs, Darko Smolenicki, N. Renaudot, Jens Boos |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
STAHL (METALLURGIE)
MATERIALBEARBEITUNG (WERKSTOFFE) MATERIALPRÜFUNG MATERIALEIGENSCHAFTEN (MATERIALWISSENSCHAFTEN) STEEL (METALLURGY) MATERIAL PROCESSING MATERIALS TESTING MATERIALS PROPERTIES (MATERIALS SCIENCE) Materials science Machinability 0211 other engineering and technologies 02 engineering and technology 0203 mechanical engineering Machining Liquid metal embrittlement General Materials Science Graphite Composite material Engineering & allied operations 021101 geological & geomatics engineering Mechanical Engineering Chip formation Metallurgy Tribology Condensed Matter Physics Material flow 020303 mechanical engineering & transports Mechanics of Materials Lubrication ddc:620 |
| Popis: | Graphitized steels are claimed to perform excellent in machining processes. They therefore can be considered as environmental friendly alternatives to the widely used Pb-alloyed steels. Due to liquid metal embrittlement and in-situ lubrication Pb improves machinability in a narrow tool-chip interface temperature window corresponding to low machining speeds. Although graphite inclusions are also supposed to generate in-situ lubrication, the mechanism and the corresponding optimum working zone is not very clear. The present work applies a new test methodology (including in-situ tribology, analysis of material flow and chip formation, optimum working zone analysis) to investigate the effects of graphite inclusions on turning and drilling operations. A Pb-alloyed low carbon free-cutting steel and Pb-alloyed case hardening steel were used as reference steels. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|