Inspection Results of Non-Licensed Dual Contact Tooling Testing of 25 samples of 40 and 50 taper non-licensed dual contact tooling revealed inconsistent taper or flange contact in 88% of the samples. Only 16% of the samples were within allowable tolerance. For reliable, repeatable dual contact performance, use only licensed systems built to verified BIG-PLUS standards.
44% NOT TO SPECIFICATION Taper Contact Only , No Flange Contact • Features of BIG-PLUS are voided • Works same as taper-only contact tooling
Gap
40% NOT TO SPECIFICATION Flange Contact Only, Limited or No Taper Contact • Poor runout accuracy • Severe chatter and vibration • Spindle damage
Gap
16% ALLOWABLE TOLERANCE Flange & Taper Contact • Dual contact of taper and flange face after clamping
Elastic Deformation
8
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