Page 16 - Fitter - 1st Year - TT - Gujarati

36.Chip sheet metal (shearing). (3 hrs.) Vernier calipers, principle,
construction, graduations, reading,
37.Chip step and file. (3 hrs.)
use and care. Vernier bevel
protractor, construction,
graduations, reading, use and care,
dial Vernier Caliper, Digital Vernier
caliper.

Vernier height gauge: material
construction, parts, graduations
(English & Metric) uses, care and
maintenance. (03 hrs.)
38.Mark off and drill through holes. (5 hrs.) Drilling processes: common type
(bench type, pillar type, radial
39.Drill and tap on M.S. flat. (8 hrs.)
type), gang and multiple drilling
40.Punch letter and number (letter punch machine.
and number punch) (3 hrs.)
Determination of tap drill size.
41.Practice use of different punches. (5 (03 hrs.)
hrs.)

Professional Manufacture 42.Marking of straight lines, circles, Safety precautions to be observed
Skill 97Hrs; simple sheet profiles and various geometrical in a sheet metal workshop, sheet
metal items as and sizes, Commercial sizes and
Professional per drawing and shapes and cutting the sheets with various types of metal sheets,
Knowledge join them by snips. (12 hrs.) coated sheets and their uses as per
21Hrs 43.Marking out of simple development (5
soldering, brazing BIS specifications. Shearing
and riveting. hrs.) machine- description, parts and
CSC/N0301 44.Marking out for flaps for soldering and uses. (05 hrs.)
sweating. (4 hrs.)

45.Make various joints: wiring, hemming, Marking and measuring tools, wing
soldering and brazing, form locked, compass, tin man's square tools,
grooved and knocked up single hem snips, types and uses. Tin man's
straight and curved edges form hammers and mallets type-sheet
double hemming. (22 hrs.) metal tools, types, specifications,
uses. Trammel- description, parts,
46.Punch holes-using hollow and solid
punches. (5 hrs.) uses. Hand grooves- specifications
and uses.
47.Do lap and butt joints. (12 hrs.)
Sheet and wire gauge. (07 hrs.)
48.Bend sheet metal into various Stakes-bench types, parts, their
curvature form, wired edges- straight uses. Various types of metal joints,
and curves. Fold sheet metal at angle their selection and application,
using stakes. (6 hrs.)
tolerance for various joints, their
49.Make simple Square container with selection& application. Wired
wired edge and fix handle. (13 hrs.) edges. (04 hrs.)

50.Make square tray with square soldered Solder and soldering: Introduction-
corner. (11 hrs.) types of solder and flux.
Composition of various types of
51.Practice in soft soldering and silver
soldering. (7 hrs.) solders and their heating media of
soldering iron. Method of soldering,
selection and application-joints.
Hard solder- Introduction, types
and method of brazing. (05 hrs.)

(xiv)