Machinist 1st Semester : Trade Theory
- Chennai National Instructional Media Institute (NIMI) 2016,c2014
- 160
Contents : Module 1 : Basic Safety -Safety -safety practice-fire extinguishers -Basic first -aid -Disposal of waste material -Guideline for good shop floor maintenance
Module 2 : Basic Fitting -Elements of a file -Length measurement -Marking Media -Shapes Of files -Hacksaw frame and blade -Metal cutting saws -Chisel -Angles of chisels -Drill (parts and functions ) -Type of marking punches -Drilling machines -Vernier caliper -Cutting speed and R P M Depth micrometers -Combination set -Dail test indicators -Smithy and forging -Heat treatment of plan carbon steels
Module 3 : Shaping -Safety ,features and applications of a shaper -Type of shapers -Working of crank and slotted link mechanism of shaping machine (quick return mechinism) -Stroke length changes -Feed mechanism -Shaper tools -Tools head and clapper box -Work supporting and holding devices for shapers -Angle plates -Surface quality
Module 4 : Slotting -Types of slotting machine -Construction features of a slotting machine -Driving mechanism of a slotting machine -Feed mechanism of slotting machine -Types of slotting tools -Cutting tool materials -Tool -holding devices -Keys and splines -Lubricants and lubrication