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И.В. Иванина
10
Инженерный журнал: наука и инновации
# 3·2017
Effect of manufacturing imprecision in tap surface-shaping
points on the radial force
© I.V. Ivanina
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article presents an analytical description of the threaded coupling between the tool
and the workpiece as a complex geometric object characterised by specific manufactur-
ing precision. We analyse the extent to which components of manufacturing imprecision
in the tool cutting edge affect thread cutting dynamics. The study shows that the radial
force component that depends on the effective thread diameter deviation proper is the
most significant one for taps of all tolerance classes. We consider the possibility of com-
puting dynamic properties based on the actual thread profile outline, to be used at the
design stage for standardising manufacturing precision of surface-shaping points of the
threading tool implementing a nibbling cutting pattern.
Keywords:
thread cutting, nibbling cutting pattern, tap, tolerance, error, precision, chip
parameters, radial force
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