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И.В. Иванина
10
Инженерный журнал: наука и инновации
# 2·2017
Calculating mounting dimensions and bearing surface parameters
for die heads with circular radial chasers
© I.V. Ivanina
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article presents a mathematical model for determining mounting dimensions and
bearing surface parameters of die heads equipped with circular radial chasers, with due
regard for the specifics of cutting kinematics and position of surface-shaping points on
the cutting edge of the tool. The study analytically establishes the connection between
structural and geometric parameters of the threaded coupling between the chaser and the
workpiece, which means that the cutting edge design and geometry can be analysed fur-
ther in terms of ensuring that the chaser parts performing cutting and calibrating func-
tion properly. The article supplies results of calculations demonstrating the effect of die
head mounting dimensions on clearance angle values of elementary cutting profiles and
area increment history of chaser bearing surfaces.
Keywords:
thread cutting, nibbling cutting pattern, die head, calculation, mounting di-
mensions, clearance angle, bearing surfaces
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