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Machine sawing tools \ Technical introduction – metal bandsaw blades

Cutting materials for bandsaw blades

Three cutting materials are available for cutting components with bandsaw blades. A distinction is made between the following cutting materials:
Tool steel bandsaws Bi-metal bandsaws (M42) Carbide-tipped bandsaws (VHM)
Tool steel bandsaws are made from a single piece Bi-metal bandsaws are made of a flexible band The teeth are milled/ground into a band backing
of carbon steel and are sufficient for numerous ap- backing (spring steel) with hardened tooth tips (HSS) (carrier material), which consists of a high-strength
plications with low requirements on service life and welded onto the spring steel via an electron beam spring steel alloy. Using a patented welding process,
the material to be processed. A distinction is made process. The majority of bandsaw blades are pro- the cemented carbide is attached to the teeth. The
between two variants: Either the backing and toothed duced through this manufacturing process. Higher tips are ground in on the side, the front and top
wheel are hardened or the backing is soft and the cutting speeds can be achieved compared to tool edge in order to produce the tooth shape. Using
tips of the teeth are hardened. steel bandsaws. The high degree of hardness facili- carbide-tipped bandsaws, the highest cutting speeds
tates the processing of materials that are challenging can be used and the widest range of materials
or difficult to machine. Bi-metal bandsaws (M42) catered to. When selecting carbide-tipped bandsaws,
can be used on all machines and for all machine the machine must be checked for proper suitability.
conditions. The machine must have a high degree of stability
(minimal vibration) and must have free movement.
① Extremely hard blade made from high-speed steel Excessive vibration or impacts destroy the cemented
carbide and cause fractures.
② Welding of spring steel with HSS through electron
welding process
③ Precision-milled teeth

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Determining the length of a bandsaw blade

The length of the bandsaw blade depends on the machine. Each machine type
has its own specific band length. Even slight deviations may produce undesirable
results. Please check with the manufacturer of your sawing machine to deter-
mine your band length.
Alternatively, you can determine the band length by manufacturer:
http://www.sawcalc.com/

Selecting the bandsaw type

The following selection chart shows all possible types of bandsaw in the different cutting materials and their application. Select a bandsaw type which suits your
application:
Bi-metal machining types Types P P P M K N S H
<700 <1000 <1300 <1100 310 <1000 <1400 55–63
N/mm 2 N/mm 2 N/mm 2 N/mm 2 N/mm 2 N/mm 2 N/mm 2 N/mm 2
Universal
CLASSIC PRO
ATORN type UN
CLASSIC
DIEMASTER 2
Full cut
CONTESTOR GT
CONTESTOR XL
QXP
CLASSIC PRO

Source: Hahn+Kolb Werkzeuge GmbH
Technical data subject to change. www.iconridge.com
Availability subject to country specific rules and regulations. 280

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