Welding technology handwritten notes for engineering students & GATE/PSU aspirants. Which have good explanation with pictorial representation and numerical with problem solutions.
Welding technology covered following topics which are indexed below :
Introduction to Manufacturing Processes Introduction to basics of Materials and their processing Introduction to Castings and steps involved in Casting Process Advantage of casting and its applications Patterns - Pattern making, Types, Materials used for patterns Pattern allowances and their construction Properties of moulding sands Methods of Melting - Crucible melting and cupola operation Defects in castings Casting processes – Types –Sand moulding Centrifugal casting, die- casting Investment casting, shell moulding Gating – Requirements – Types of gates, Design of gating systems Function, types of Riser and Riser design. Solidification of casting –Solidification of pure metal –Nucleation and grain growth, casting design considerations Welding: Classification Types of welds and welded joints welding - Types, oxy-fuel gas cutting standard time and cost calculations Arc welding forge welding Submerged arc welding Resistance welding Thermit welding Inert Gas Welding TIG Welding, MIG welding Friction welding Induction welding Explosive welding Laser Welding Heat affected zone in welding Welding defects causes and remedies Destructive testing of welds Non- destructive testing of welds Introduction: Hot working & cold working Strain hardening, recovery, recrystallisation and grain growth Rolling fundamentals –theory of rolling, types of Rolling mills and products Forces in rolling and power requirements Stamping, forming and other cold working processes Blanking and piercing Bending and forming Drawing and its types –wire drawing and Tube drawing – coining Hot and cold spinning Types of presses and press tools Forces and power requirement in Press work Introduction Basic extrusion process and its characteristics Hot extrusion and cold extrusion Forward extrusion and backward extrusion Impact extrusion Extruding equipment Tube extrusion and pipe making Hydrostatic extrusion. Forces in extrusion Forging Processes: Forging operations and principles –Tools Forging methods – Smith forging, Drop Forging Roll forging Forging hammers: Rotary forging forging defects cold forging, swaging Forces in forging operations
These are topics for welding technology which are covered in app.