Hot Saw Blades By Tool Tech Engineers

 Hot Saw Blades Hot and friction saw blades are used for cutting : slabs - square billets - plates - tubes - profiles Hot saw blades are used to cut metals with a temperature in excess of 850 C. When sawing metals below a temperature of 250 C, friction saw blades are used. Both sawing methods are a friction cutting. The friction heat in the cutting gap ae produces temperatures which bring the material in a soft, almost plastic condition. In order to clear debris from the tooth gullet a copiuos or heavy flow of coolant (preferably under high pressure) is essential for efficient cutting . The required cutting speed is Vc=100-140 m/sec. Depending on the material to be cut the feed reached is Vf=80-2000 mm/min. The tooth geometry and tooth pitch are determined by the section and quality (analysis) of the material to be cut and the sawing machine. Heat treatment of the saw blades of 1200-1250 N/mm (up to 1000 mm diameter) or hardening of the teeth up to Rockwell C 58 (up to 2500 diameter) gives an increase in both blade life and in number of cuts between resharpening.