Tuesday, 3 May 2011

Power Saws


Power Hack Saw
For many years the only way to saw off metal was to use a hand saw.The development of power driven machine for driving metal-cutting saw blades has made the task considerably easy. Power saws can do the work more rapidly and with greater accuracy. From the picture can you guess one real life application for the above saw?




Band Saw Machines
In this machines a flexible saw blade driven in a continuous loop around two wheels-like a fan belt in a car - the band machine provide a continuous cutting action. Band machines could be used for different materials. Band machines are available in Horizontal models and vertical designs. Shaping slotting and cut-off operations can be performed on both types, in addition to these operations, band saw blade could be replaced with filing or abrasive band so the machine can also do filing, polishing operations. Think and write one real application for the above saw?






Disc Machines
The cutting action of the disc machines depend or a circular disc cutter, rotating at high speed. It is used mainly for cutting parts off, in metal work and carpentry work, mention one real life application?.











/azadhacksaw.com/images/hacksaw6.jpg
http://www.supplierlist.com/
http://www.workshop-equipment.co.uk/
www.tradeindia.com//img.diytrade.com/cdimg

Ref. Machine operations and setups - Lascoe nelson porter

Monday, 8 November 2010


The pictures above show two views for a machined part.

List the machining operations required to produce the part.

Suggest a machine to be used and list the G-codes, cycles required to make such part.








Tuesday, 28 September 2010

CNC Machinery

Conventional Turning Machine









CNC Turning Machine






The pictures above show CNC Turning Machine and Conventional Turning Machine



Compare between the two machines, in term of their function and operation?





Discuss the advantages and disadvantages of the CNC machines?