3. workshop
MeasrMents
standard technqs
Lathe
history
withworth
Theory
tools
• Operations
•Parts
•types
•CONCLUSIO
N
flow

4. Machine Shop ??

5. Measurments ??
Standards
M
BSW
SIMS

6. BSW MS SI
UNITS UNITS UNITS
inches Meter metr
Feets Centimeter Kilometer
yards Milimeter
Miles Decimeter
Nautical Miles picometer
1841 1947 1960
Sir
Withworth
French Modern
Form
Only Burma, Liberia and theUnited
States have not adopted SI units.

7. Techniques ??
1: INDIRECT 2: DIRECT
Outer
Callipers
Inner
Callipers
Gauges
Vernier
Callipers
Screw Gauge
Scale Foot

8. THEORY !!!!
THREADS
• Pitch
• Lead
• Types
SQUARE (90*)
ACME (29*)
BUTTRESS (60*)
ISO (60*)

9. Joseph WithWorth’s
Contribution !!
Three Systems
SYSTEMS Thread Angle
BSW (withworth) 55
BSF (finned) 55
BSC (cycle) 60

10. GAUGES !!
TYPES
Profile gauge
Snap Gauge
Plug gauge
Feeler gauge
Radius gauge
Wire gauge
Thread Gauge

11. MARKING TOOLS !!
TYPES
Try square
Carpanter square
Measuring tapes
Divider
Old leg Callipers
Scribers
Surface Plate
Vernier Hight
Vee Block

12. CUTTING TOOLS !!
TYPES
files
hammer
Hand hack saw
Drill Bits
Tappes
Remmers
Counter Boaring
tools
Hand Shears
Bolt Cutter

13. FITTING TOOLS !!
TYPES
Screw Driver
L-Keys
Spanners
• Open handed spanner
• Ring Spanner
• Tube spanner
• Chain spanner
Renches
• Screw Rench
• Pippe Rench
• Rattle Gun
• Alegator Rench
• Wheel Brace

14. WHAT IS LATHE
MACHINE ???
HISTORY
Ancient Egyptians
Ancient Greeks
Ancient Rome
Middle Ages
Modren Age

15. LATHE MACHINE !!
PARTS
HeadStock
Tailstock
Apron
Bed
Base

16. LATHE MACHINE !!
OPERATIONS
Turning
facing
Boring
Drilling
Reaming
Threading
Knurling
Tapper Turning

17. LATHE MACHINE !!
TYPES
Central lathe
Engine lathe
Bench Lathe
Automatic lathe
Turret lathe
CNC – lathe
PLC – lathe

18. JOBS

19. DIFFERENCE
CNC LATHE PLC LATHE
Computer Operated Computer Operated
Motors Hydraulics
Water Coolant Air Coolant

20. CONCLUSIONS !!!