Page 19 - Fitter- 1st Year TT - Kannada

80. File fit- combined, open angular and Method of expressing tolerance
sliding sides. (08 hrs.) as per BIS Fits: Definition, types,
description of each with sketch.
81. File internal angles 30minutes Vernier height gauge: material
accuracy open, angular fit. (12 hrs.) construction, parts, graduations
(English & Metric) uses, care and
maintenance. (04 hrs.)
82. Make sliding fit with angles other than Pig Iron: types of pig Iron, properties
90o (21 hrs.) and uses.
Cast Iron: types, properties and
usesWroughtiron:- properties and
uses.
Steel: plain carbon steels, types,
properties and uses.
Non-ferrous metals (copper,
aluminium, tin, lead, zinc) properties
and uses. (05 hrs.)
83. Scrap on flat surfaces, curved Simple scraper- flat, half round,
surfaces and parallel surfaces and triangular and hook scraper and
test. (04 hrs.) their uses. Blue matching of
scraped surfaces (flat and curved
84. Make & assemble, sliding flats, plain bearing surfaces). Testing scraped
surfaces. (12 hrs.) surfaces: ordinary surfaces without
85. Check for blue math of bearing a master plate. (04 hrs.)
surfaces- both flat and curved
surfaces by wit worth method. (5
hrs.)83. Scrap surfaces- both
flat and curved surfaces by wit worth
method. (5 hrs.)
86. File and fit combined radius and Vernier micrometer, material,
angular surface (accuracy ± 0.5 mm), parts, graduation, use, care
angular and radius fit. (15 hrs.) and maintenance. Calibration of
87. Locate accurate holes & make accurate measuring instruments.
hole for stud fit. (2 hrs.) Introduction to mechanical fasteners
88. Fasten mechanical components / sub- and its uses.
assemblies together using screws, Screw thread micrometer:
bolts and collars using hand tools. (5 Construction, graduation and use.
hrs.) (05 hrs.)

89. Make sliding fits assembly with Dial test indicator, construction,
parallel and angular mating surface. parts, material, graduation, Method
(± 0.04 mm) (21 hrs.) of use, care and maintenance.
Digital dial indicator. Comparators-
measurement of quality in the
cylinder bores. (05 hrs.)

Professional P r o d u c e c o m p 90. Lathe operations- Safely precautions to be observed
Skill 95Hrs; o n e n t s involving 91. True job on four jaw chuck using knife while working on a lathe, Lathe
different operations specifications, and constructional
Professional on lathe observing tool. (5 hrs.) features. Lathe main parts
Knowledge standard procedure 92 .Face both the ends for holding descriptions- bed, head stock,
15Hrs and check for between centres. (06 hrs.) carriage, tail stock, feeding and
accuracy. [ D i f f e thread cutting mechanisms. Holding
r e n t 93 Using roughing tool parallel turn ± 0.1 of job between centres, works with
Operations - facing, mm. (06 hrs.) catch plate, dog, simple description
plain turning, step 94 Measure the diameter using outside\ of a facing and roughing tool and their
turning, parting, caliper and steel rule.(1 hr.) applications. (04 hrs.)

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