Metallurgy of Tool Materials and Special Steels for B.Tech 7th sem is covered here. This gives the details about credits, number of hours and other details along with reference books for the course.<\/p>\n
The detailed syllabus for Metallurgy of Tool Materials and Special Steels B.Tech (R13) seventhsem is as follows<\/p>\n
OBJECTIVES<\/strong><\/p>\n Tooling materials require special considerations in production and application. Students will learn the metallurgical processes and applications in producing toolings.<\/p>\n UNIT I : CLASSIFICATION AND MANUFACTURE OF TOOL STEELS \u00a0<\/strong> \u00a0[8 Hours] UNIT II : HEAT TREATMENT OF TOOL STEELS<\/strong> \u00a0 \u00a0[10 Hours] UNIT III : PROPERTIES AND TESTING OF TOOL STEELS \u00a0<\/strong> \u00a0\u00a0[10 Hours]
\nClassification – AISI system, production techniques \u2013 problems in melting -powder metallurgy route, Refining methods like VAR and ESR – forming of tool steels.<\/p>\n
\nSpheroidising \u2013 selection of quenching and tempering parameters \u2013 precautions – Effect of retained austenite – Multiple tempering, sub-zero treatment and cryo treatment – surface treatments – defects in tool steels – Over heated and burnt structures – Decarburization.<\/p>\n
\nMechanical propertiess of tool steels, strength, hardness and toughness \u2013 properties at elevated temperature \u2013 microstructure – distribution of carbides – coating thickness \u2013 micro hardness \u2013 adhesion and scratch resistance<\/p>\n