Machine tool• A machine which performs the material
removal operation with tools, to produce desired shape and size of the work pieces
• The purpose of machine tool is to save the time, cost of production and to get better output which can not be obtained with hand tools
• Ex: lathes, shapers, planers, drilling machines and grinding machines etc
ENGINE CENTRE LATHE
Lathe • The lathe is one of the most important
machines in any workshop• Its main objective is to remove material from
outside by rotating the work against the cutting tool
• Lathe is used to produce cylindrical jobs• Also used for drilling, threading, grinding and
milling etc
Working principle of lathe
Working principle of lathe• The work piece is held in a chuck or between
centres and rotated about its axis at a uniform speed
• The cutting tool is held in the tool post is fed into a work piece for a desired depth and in the desired direction
• Material is removed in form of chips and the desired shape is obtained.
Types of lathes
• Speed lathe• Engine or centre lathe• Tool room lathe• Capstan and turret lathe• Automatic lathe• Special purpose lathe
CARRAIGE ASSEMBLY
CARRAIGE ASSEMBLY
SPLIT NUT ASSEMBLY
FOUR JAW CHUCK
COLLET CHUCK
COLLET CHUCK
THREE JAW CHUCK
LIVE AND DEAD CENTRES
LIVE CENTER
TAIL STOCK
SINGLE POINT CUTTUNG TOOL
LATHE TOOLS
KNURLING TOOL
LATHE OPERATIONS
MACHINING PROPERTIES
• FEED: The distance by which the tool advanced between two consecutive cuts.
• Depth Of cut : The advancement of the tool into workpiece in transverse direction.
• Cutting Speed: The speed at which the spindle is rotating and machining is being done.
TAPER TURNING OPERATIONS
GROOVING OPERATION
Top Related