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UNIT I METAL CASTING PROCESSES 9
Sand casting – Sand moulds - Type of patterns – Pattern materials – Pattern allowances – Types
Moulding sand – Properties – Core making – Methods of Sand testing – Moulding machines –
of moulding machines - Melting furnaces – Working principle of Special casting processes –
investment casting – Ceramic mould – Lost Wax process – Pressure die casting – Centrifugal
CO2 process – Sand Casting defects.
UNIT II JOINING PROCESSES 9
Fusion welding processes – Types of Gas welding – Equipments used – Flame characteristics –
and Flux materials - Arc welding equipments - Electrodes – Coating and specifications –