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Decreasing the FRF peak magnitude, via increasing the tool damping, yields an
enhancement in its stability limit. The SLD’s of ISCAR's anti-vibration tools and corresponding
conventional tools are compared in the figure below, where ISCAR's anti-vibration
tools show a considerably higher stability limit than that of conventional tools.

Tool stiffness and mounting rigidity also affect the FRF and the stability limit of the tool.
Increasing the mentioned stiffness will cause improvement in the FRF and stability limit.

Conventional tool - without DVA Conventional tool - with DVA
3.0 3.0
Chatter Chatter
2.5 2.5

2.0 2.0 CHATTER SUPPRESSION METHOD OF ISCAR ANTI-VIBRATION TOOLS
ap. lim (mm) 1.5 ap. lim (mm) ap. lim (mm) 1.5

1.0 1.0

0.5 0.5
Stable
0 0
500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5000 500 1000 1500 2000 2500 3000 3500 4000 4500 5000
Spindle speed (rpm) Spindle speed (rpm)

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