| Issue |
MATEC Web Conf.
Volume 298, 2019
International Conference on Modern Trends in Manufacturing Technologies and Equipment: Mechanical Engineering and Materials Science (ICMTMTE 2019)
|
|
|---|---|---|
| Article Number | 00008 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/matecconf/201929800008 | |
| Published online | 18 November 2019 | |
On the influence of thermal processes on the dynamics of a drill during deep hole machining
Moscow Aviation Institute (State National Research University), Russia
* Corresponding author: mironova_lub@mail.ru
Deep drilling process has been studied and dynamic features of interaction the cutting part of the gun drill with the detail have been identified. Thermal processes of cutting and heat sinking in the interacting chains were analyzed: “heat source – workpiece”; “heat source - chips”; heat source – tool”; “heat source – cooling liquid”. It has been noted that the vibrations lead to the loss of dimensional accuracy of the part fabrication as well as hole surface quality. Mathematical dependence of the longitudinal and torsional oscillations of the cutting drill bit is determined and the influence of heat flow pulsations on the friction coefficients and cutting force is revealed.
© The Authors, published by EDP Sciences, 2019
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