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K.F. Martynenko, Y.I. Barats
POWER INTENSITY OF PROCESS OF DRILLING BY THE TOOL WITH THE
MODERNISED GEOMETRY OF A CUTTING PART
Many manufacturers of the tool work above perfection of a design of spiral
drills for maintenance of higher modes of cutting, and also increase in stability of
the tool. Exclusion from the construction of drill lateral edge significantly reduces
the force strength of drilling, mainly axial for ceduring drilling, drill resistance
increases approximately 1.5 times.
Drill, cutting edge, bridge, surface, vertex angle, resistance
???????? ?????? ????????? ???????? ? ?????????????????? ????????? ?????????
????????? ????????????? ???????? ?? ???? ??????????? ?????????????? ??????????
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?????????????????? ??????????? ?????????? ????? ??? ??????????? ????? ???????
??????? ???????, ? ????? ?????????? ????????? ???????????.
????????, ??? ????????? ?? ????????? ? ???????, ? ??????? ??????????????? ???????
????????????? ????????. ?? ?? ???? ?????????? ????? 35% ?????? ???? ?? ??? ?????????.
????, ?????????????? ??????????? ?????? ? ????????, ?????????????? ?? ???? ?????????
?????? ??????, ??????? ? ?????????????? ?? ???????????? ?????? ???? ?? [1].
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???????????? ??????? ??????? ???????? ?????? ? ???????? ????? ??? ???????, ???????
?????? ???????? ????? ? ????? ?????????.
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86
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????????? ?????? ????? ? ??????????? ??????. ?????? ???????? ?????? ? ???????? ?
??????? ???????? ??????????? 5 ??????.
???. 2. ?????????????? ????? ???????? ??????: 1 ? ???????? ???????,
2 ? ???????? ?????????, 3 ? ???? ?6?11, 4 ? ????? ?????????
??????? ??????? ?????? ??? ?????????? ?? ????? ?6?5, ????????? ??????? ?????
58HRC, ??????? ?????? ? � ??, ????? ????? ?3 ?? ???? 2847-67.
??????????? ?????????? ??????? ??????????? ?? ????????? Ra 1,25 ??? ??????????
?????????? ?????? ????? ????. ?? ??????? ???????????? ??????? ??????????? ????????
??????? 2 ?? ??? ???????? ?????? ??????? ?????? ? ?????? ?????????.
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???. 3. ????????? ??????? ????? ?????? ???. 4. ???? ??????? ??????? ???????
??? ?????? ???????????????? ????????????? ?????? ???? ????????? ?????????????
?????????. ? ???????? ???????????? ??????? ????? ??????????? ?????????? ?????? � ??
?? ????????????? ????? ?6?5. ???????????? ???????? ????????????????? ???????????
????????? ??????? ??????? ???? ??? ?????????.
87
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Mkp
?? ????? ???????? n (s=0,175 ??/??)
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1 ? ?????????? ??????, 2 ? ???????
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Mkp
?? ?????? s (n=125 ??/???) ???
????????? ???. � ??. 1? ??????????
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2 ? ??????? ??????
???????????? ??? ??????? ??????????? ?? ???????-??????????? ?????? 16?20 ?
??????? ?????????? ????????????? ????????.
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???????? n (s=0,175 ??/??) ??? ????????? ???.
� ??.
1 ? ?????????? ??????, 2-??????? ??????
?????? ?????????? ????????????? ????? ????????? ??????????, ??? ??????
??????????? ?????? ???????? ?????????????. ?? ???????? ?? ???.5-7 ?????, ??? ????????
?????? ??? ????????? ??????? ??????? ?? ?????????, ? ??? ??????? ????????? n ????
???????? ?????????, ?????????? ??? ?????? ?????????? ???????. ???????? ?????? ???? ??
??? ???? ?????? ????? ??? ?? 30%.
?????????????? ??????????? ?????? ????????? ??????? ??????? ?????????????
???????? ?????????, ? ????? ???????? ????????? ? ????? ??????? ????????? ???????????.
??? ???? ???? ????????, ??? ?????????? ????? ?????? ??????????? ????????????? ???
?????????? ??????? ????????? ??????? ???? ? ????????? ????? ??????????? ?????????
?? ??????? ????????????? ????, ????? ?????????? ??????????.
??????????
1. ???????? ?.?., ???????? ?.?. ??????????. ?.: ????. ??., 1971. 288 c.
88
2. ????? ?.?. ????????? ??????? ????? ??????????? ??????. ????: ????i??, 1971. 37 c.
3. ????? ?.?., ?????? ?.?., ?????????? ?.?. ??????? ???????? ???????????. ?.:
????. ??., 1970. 316 c.
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??????? �?????????, ????????????
????????????????? ? ?????????????????
??????? ????????? ??????????�
???????????? ????????????????
???????????? ????????????
Barats Yacov Ilyich ?
Doctor of Technical Sciences, Department of
玊echnology, equipment electrical and
electrochemical methods of processing
materials�, Saratov State Technical University
?????? ????????? ? ???????? 20.05.2011, ??????? ? ????????????? 27.05.2011
89
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