MACHINE TOOL Prof. kiran gore
Contents Lathe machine Drilling machine Grinding machine
Grinding machine
Grinding is the process of removing material by abrasive action of revolving wheel on the surface of work piece. During grinding process material removed in the form of chips. Grinding is considered as finishing operation because very small amount of material removed from the surface of the work piece.
Grinding wheel The wheel used for performing the grinding operation is called grinding wheel
Types of grinding operations 1. Rough grinding 2. Precision grinding
Rough grinding In rough grinding the grinding wheel are used 1. For removing the excess material from casting, forging & weld materials 2. For removing the sharp corners, burrs or other unwanted projections from the work piece. Rough grinding does not give good surface finish & high dimensional accuracy
Precision grinding Precision grinding is used for imparting the good surface finish & high dimensional accuracy to the work piece.
Types f grinding machine 1. cylindrical grinding machines 2. Internal grinding machine 3. Surface grinding machine 4. Center less grinding machine
cylindrical grinding machines
Cylindrical grinding machine
Application The cylindrical grinding machine are used for grinding Axle Shafts Spines
Internal grinding machine
Application The internal grinding machine are used for grinding Bores of gears Inner surface of ball bearing Bores of cylinders
Surface grinding machine Surface grinding is the process of grinding flat surface of the work piece. Types a.Horizontal spindle surface grinding machine b.Vertical spindle surface grinding machine
a. Horizontal spindle surface grinding machine
Horizontal spindle surface grinding machine
b.Vertical spindle surface grinding machine
Vertical spindle surface grinding machine
Center less grinding machine
Center less grinding is a method of grinding cylindrical & tapered surface on a work piece that are not held & rotated between centers or in chuck. Center less grinding machine
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