Каталог Widia инструментальная оснастка - страница 1088

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Balancing

WIDIA™ offers a range of balanced and balanced-by-design toolholders capable of extending spindle and tool life and improving part quality at higher machining speeds.

Definitions for Balance

Standard ToolholderBalanceable
A toolholder that may contain uncorrected features (unbalanced drive slots, notches,A toolholder with a built-in mechanism that can adjust to correct any unbalance
locking screws, etc.). Standard toolholders have no compensating features addedinaccuracies incurred during normal manufacturing. The fully assembled tool
to correct balance, such as basic, low-speed applications.(toolholder and cutting tool) can be balanced as a system using a balancing device.
Balanced-by-DesignBalanced
A toolholder designed with compensating features to correct any unbalanceA toolholder has been balanced to predetermined specification after manufacture
caused by uneven drive slots, notches, locking screws, etc. The balanced toolholderby checking the balance condition with a balancing device. This may be followed
is capable of being used in high-speed applications. Small, residual unbalanceby physically removing material from the toolholder, such as holes and/or slots.

may result due to normal manufacturing tolerances within the shank standards.

When machining at higher speeds, responsible machining practices must Forces caused by unbalance increase with the rotational speed squared. Excessive be observed. Unbalance is caused by uneven mass distribution in the tool unbalance can cause premature wear to the tool and spindle bearing, which can or toolholder. Potential sources of unbalance are movable parts (adjustable adversely affect surface finish and accuracy. cartridges, set screws, spindle spring pack, and clamping mechanisms), manufacturing tolerances, and design.