The machine will produce 10mm square Charpy specimens from rough cut samples of up to 16mm square or up to 18mm dia. bar. It is designed to enable laboratory personnel to produce their own Charpy samples instead of waiting for machine shop time. The machine uses a 5 blade cutter with easily replaceable inserts.
Up to 4 specimens can be machined at the same time and these are mounted in a rotating fixture. After the first rotation, which cuts the first side, the fixture is removed and reversed to cut the second side, after which the specimens are remounted in the fixture at 90 degrees to cut the third and fourth sides in a similar fashion. On completion of the fourth side, a 10mm square specimen is achieved, meeting surface finish and dimensional tolerances of all international standards including BSI and ASTM.
In its basic form the machine has a single cutting speed appropriate to users applications. The rotating fixture drive on all machines has a variable speed adjustment by thyristor controlled D.C. drive, giving an adjustable feed rate.
These facilities enable optimum conditions of surface finish and tool life to be achieved at all times. An easily followed setting guides included with the machine.In production the machine will produce complete specimens at the rate of 4 every 20 minutes and is capable of cutting steels up to a hardness of 42 Rockwell C.The machine is sold as a bench top model, requiring only a 10 amp 3 phase electrical supply and suitable bench
Contact: RJW Ltd at charpy@rjwltd.co.uk Web site: www.blackscharpy.com
Unit A5 Chaucer Business Park, Watery Lane, Kemsing, Sevenoaks, Kent.
Tel: +44 (0) 1732 763122 Fax: +44 (0) 01732 763858
© 2005 RJW Ltd