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Fitting2 110925102441-phpapp01
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Transcript of Fitting2 110925102441-phpapp01
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FITTING SHOP
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FITTING SHOP
Fitting is the process of assembling various parts manufactured in the machine shop
Tools used in Fitting shop
1.Holding tools
2. Cutting tools
3. Striking tools
4. Marking and measuring tools
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Work bench
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BENCH VICE
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CROSS SECTION OF BENCH VICE
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PIPE VICE
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HAND VICE
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PIN VICE
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TOOL MAKERS VICE
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HACK SAW• BASIC HAND TOOL USED TO CUTTING UNWANTED MATERIAL
• USED TO CUTTING SLOTS AND CONTOURS
PARTS OF HACK SAW
1.METAL FRAME
2.BLADE
3.HANDLE
4.WING NUT
SCREW
TYPES OF SAWS
1.SOLID(FIXED)FRAME
2.ADJUSTABLE (FLEXIBLE)FRAME
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Solid frame Hack Saw
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Adjustable frame Hack saw
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HACK SAW BLADE
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Specifications of Blades
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Parts of File
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Specifications of FileFiles are specified according to their
• Length
• Shape
• Teeth pattern
• Grade
Ex. 200mm,half round, single cut bastard file
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Length of file• Length is measured from heel to point
• Files are available from 100mm to 450mm
• Common sizes are 100mm, 150mm, 200mm, 250mm, and 300mm.
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Grade
• Depending on fineness and or pitch of teeth, they are graded as
(a)Rough---8 teeth per cm, rough work
(b)Bastard –12 teeth per cm,cuts smaller amounts than Rough file
© Second cut– 16 teeth per cm, better finish than Bastard
(d) smooth– 20 to 24 teeth per cm
(e) Dead smooth– 25 to 40 teeth per cm
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Teeth pattern of FileFiles are classified as
(a) Single cut files, and
Angle from 450 to 600 from edge
(a) double cut files
700 to 800 from opposite side
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Types of files
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TYPES OF FILES
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TYPES OF FILES
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CHISELS• Chisels are made from high carbon steel or chrome –vanadium steel
• It consists following parts
• 1.Head 2.Body or shank 3.Point or cutting edge
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Types of chiselsThe most commonly used chisels are
1.Flat chisel
2. Cross cut chisel
3. Half-round chisel
4. Diamond point chisel
5. Side chisel
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DRILLSDrills are used to make circular holes
These are made up of high-speed steel, chromium steel and carbon tool steel
It has the following parts
1. Body
2. Neck
3. Shank
4. Tang
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Types of DrillsThe following types of drills are more commonly
used
1. Flat drill
2. Straight fluted drill
3. Twist drill
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ReamerAfter drilling a hole, Reamer is used to finishe
the drilled hole.
It consists of Body and Shank
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Taps
Taps are used to make internal threads in drilled holes
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Types of TapsTaps are available in following three types
1.Taper or first tap (rough)
2. Plug or second tap(semi-finish tap)
3. Bottoming tap (finish tap)
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DIES• The die is a cutting tool used to cut external
threads on cylindrical parts
• It is a circular disc of hardened tool steel having a threaded hole and flutes which forms cutting edges
Types of Dies
1. Solid die
2. Adjustable split die
3. Adjustable two-plate die
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Striking ToolsThese are used for striking purposes like punching,
chipping, marking, bending, straightening and riveting
Hammer is basic striking tool
Parts of hammer
1. Peen
2. Face
3. Eye hole
4. Handle
5. head
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Marking ToolsMarking is the process of layout of sizes on work
piece. The following tools are used in marking out operations.
1. Scriber 2. divider
3. Jenny caliper 4. scribing block
5. Angle plate 6. V-block
7. Punch 8. Try square
9. Surface plate 10. Straight edge
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Scriber
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Devider & jenny caliper
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Angle plate & V-Block
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Punch
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Try square
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Surface plate
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Straight edge• The straight is made up of cast iron or carbon
steel and finished to high degree of accuracy.
• It is used to check the straightness or flatness of surfaces
• It is also used for testing alignment of machines
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Measuring Tools
The most commonly used measuring tools are described below
1. Steel rule 2. caliper
3. Depth gauge 3. Vernier caliper
4. Micrometer 5. Gauge block
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Steel rule
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caliper
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Depth Gauge
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Vernier caliper
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Vernier height gauge
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Vernier depth gauge
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Gear Tooth Vernier
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Micro meter
• Micrometer is precision tool used to measure upto an accuracy of 0.01mm.
• Used to measure outside diameter, inside diameter and thickness of objects
Types of micrometers
1. Out side micrometer
2. Inside micrometer
3. Depth micrometer
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Micro meter
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Inside micrometer
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Depth micrometer