Conditions of application
-Vary with the machine used and workpieces to be cut
-Cutting speed: 110-150 m/s
-Feeding speed: approx. 1000-3000 mm 2 /s
-Cooling: high pressure cooling with water
Typical main dimensions:
Saw blade material:
- BL60 is a BLECHER exclusive, unique material for best possible blade life at
least possible tendency to cracking (for tooth tip hardened blades).
other material with carbon content as given by the application (the Carbon
content determines hardness = blade life and its tendency to crack by a large
amount):
- 75 Cr 1 (1.2003) standard for smaller diameters, hardened and
tempered all over, C = O.75%
- 51 Mn 7 for medium (hardened and tempered all over) and larger
(with hardened tip of tooth) diameter, C = 0.55%
- BLECHER special steel grades BL50, BL55 and BL8O for all
diameters, alloys optimised for long blade life and low addiction to cracking
Finish of side faces:
- Black rolled (standard) finish = side faces of saw blade not ground
for moderate cutting clearance, Blecher always balances also black rolled saw
blades!
- flat ground finish = side faces of saw blade parallel ground upon customer
request
- hollow ground and off-set finish: side faces are hollow ground, optionally
off-set ground and balanced after flat grinding; for maximum cutting
clearance, reduced burr forming and high cut quality
