Processing
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SSAB
Oxelosund is neither an expert nor a supplier of cutting tools.
We by no means claim to have found the optimum solutions, but
we are happy to share our experiences. Please also seek the expertise
of your cutting tool suppliers. |
| Machining |
 The
service life of a cutting edge is governed by the force on and the
speed of the tool. (N*m/s=Nm/s=J/s=W). In order to lower the force
and the heat of the tool, the development of inserts has gone from
blunt to sharper edges. According to Sandvik, the cutting speed can
be increased by 30% for the same service life.On top of that, sharp inserts like Sandvik GC1025 allow the cutting speed for TOOLOX 33 to be increased by 25% compared with 2312 (P20S) and much more compared with 2311 (P20). For more information www.coromant.sandvik.com and our recomendations www.toolox.com |
| Drilling |
Deep
holes (10-12 times the diameter) in TOOLOX 33&44
with fi ne tolerances, have been drilled with straight fl ute cemented
carbide drills, using holes in the drill for cooling. The drilled
holes look as though they have been reamed. The name of the drill
used is a Miller drill called “Futura Coated M2612 12*D“.
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Short
holes in TOOLOX 33&44 are best drilled with cemented carbide drills, Sandvik have a wide range of
such products. 
Cooling channels (10 mm in diameter and 250 mm long) in 
TOOLOX 33&44 can be drilled with high-speed
drills, preferably cobalt alloyed. It is important to use machine
feeding to avoid “hard spots”in the material. Drill tip angle for
hard 
material use to be 130 degrees. By using a sharper
drill tip angle (110-118 degrees) we have achieved 2-3 times better
service life. The wear of the drill will then start at the centre
of the drill and not at the periphery. | Tapping | |
 Tapping
is the most critical operation for TOOLOX 44. Milling the thread is a
good method when possible. Tapping the thread works with the right tap.
Emuge-Franken of Germany www.emuge franken.de have run trials to find
appropriate taps for TOOLOX 44, their best result are: |
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• M6 with
“Reckord 1A-Z-TiCN“ 185 holes with a coated high speed tap ( art.B0109401.0060 ) |
• M5 with “Reckord 1A-Z-TiCN“ 125 holes with a coated high speed tap ( art.B0109401.0050 ) |
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DaMa.Tech d.o.o., Cesta Franceta Prešerna 63 4270 JESENICE, Slovenia T: +386 (0)5 923 55 00 F: +386 (0)5 923 55 01 e: toolox@toolox.si |
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