The document discusses a lathe machine. It provides an overview of what a lathe is used for and some of its main operations like turning, tapering, boring and threading. It also lists some important safety precautions when operating a lathe such as keeping the work area clean, not stopping the lathe by hand, and never changing speeds when the lathe is running. References for additional information are provided at the end.

1. Made By:
Department of Chemical SUP RVISOR:
E
E Ishfaq H
ngr ussain
Engineering (Batch-12)
INST RUCT :
OR
Awais Sharif
Sir Muhammad Akmal B C-SP
E 11-097
L H M
AT E ACHINE
 Lathe is a machine, which removes the
metal from a piece of work to the
required shape & size.
 Lathe is forerunner of all machine tools.
 Very versatile machine.
 Used for turning, tapering, form turning,
screw cutting, facing, drilling, boring,
spinning, grinding and polishing
operations
Lathe Operations
Turning: produce straight, conical, curved, or grooved
workpieces
Facing: to produce a flat surface at the end of the part or
for making face grooves.
B oring: to enlarge a hole or cylindrical cavity made by a
previous process or to produce circular internal grooves.
Drilling: to produce a hole by fixing a drill in the tailstock
T hreading: to produce external or internal threads
K nurling: to produce a regularly shaped roughness on
cylindrical surfaces
Safety Precautions
B aware of safety requirements in any area of shop
e
Always attempt to observe safety rules
F ailure results in:
• Serious injury
• Resultant loss of time and pay
• L of production to company
oss
Always remove chips with brush
• Chips can cause cuts if use hands
• Chips become embedded if use cloths
Always remove sharp toolbit from toolholder when
polishing, filing, cleaning, or making adjustments
K eep floor around machine free from grease, oil, metal
cuttings, tools and workpieces
Never attempt to stop a lathe chuck or driveplate by hand
B sure chuck or faceplate mounted securely before
e
starting
Do not operate lathe until understand controls
Never operate machine if safety guards removed
References:
B ook W ebsite Safety Note!! NEVER change speeds
• work shop Technolgy by H ajra choudry • www.
• Advances in M
when lathe is running.
anufacturing T echnology C.J Thomas engbasics.com
• www. efunda.com COMSAT INST UT OF INF
S IT E ORM ION T CH
AT E NOLOGY