???????????? ?????????? ????? ?????? ?????? ??? ?? ?? ??????????????????? ???? ????????? ????????????? ????? ?? ?????????, ???????, ??????????, ??? ???????? ????????? ??? ?? ?????????? ?? ???????????????????????? ???? ?????????? ????????? ??? ???????? ??? ?? ??????????? ??? ???????? ?????????????????, ????? ????? ?? ??????, ?????, ??????????, ????????????????????? ??? ?? ????? ??????? ????-?????????????????? ??? ??? ??????????? ???? ?????????? ?????? ??? ?????????? ?????????? ????? ????? ?? ????????: ????????? ??? ??????????: ??? ??? ?? ????????????? ????-??????????? ???? ??????? ?? ????????? ??? ????????? ???? ??? ??????????, ??? ??? ?????? ?? ???????????? ???? ??? ??????????. ?? ????? ??? ?????????? ????? ????? ???? ?????????????????? ???? ????????????, ????? ??? ???????????? ???????????????? ????????????: ???????????? ??? ???? ?? ???????????????? ????????????? ????????????? ??????? ???????? ???? reduse? ?? ????? ??? ???????????, ???????????? cutting performance, reduses cutting force and cutting heat, ?????????????????? ??? ???????? ???? ????? ????? ?????? ???????????????: ??????????????? ??? ?? ????????????? ??????????? ???? ??? ????????? ??? ??????? ?? ?? ???????? ????? AC3 ????? ????? 30 °50 °C, ????? ??? ????? ?? ???????? ?????? ??? ????? ??? ?????? ??????????????? ??? ?????? ?? ?????????????? ???? ???????????, ???????????? ?? ?????????? ??? ????? ???? ????? ????????????? ??? ???????: ???? ??? ?? ????????????????? ??? ???????????? ?????????????, ?????????? ????? ?????????? ??????. ??????????? ??? ????????? ??? ??????? ??? ???????? ???????? ???? ??? ?????????? ??? ?????, ?????? ?????????? ????? ??? ????? ?????????, ???? ???????? ?? ????? ??? ?????????? ??? ??? ????????. ????????: ???????? ??? ?? ???????????? ???????? ??? ??????? ?????????????, ??????? ???????? ???? ?????????? ??????. ???? ???????????? ???????? ????????? ??? ??? ?????????? ??? ?? ?????, ?? ???????? ??? ????? ????????? ??? ??? ?????????? ????? ?????????, ??? ?? ???????? ???? ??? ?? ????? ??? ??????extended ?? ?????????????: ??? ????????????? ??? ?? ????????? ????????? ?????? ??? ???????????? ??????????????????. ?? ???? ???????? ??? ????? ??????? ??? ????? ?????geri??: ?????????? ???? ????????, ???????? ???? ????????, ??? ????? ????????. ?? ?????????????? ??? ?????????? ????? ?????????? ?????? ??? ????? ?????????????????. ????? ?????? ??? ???? ???????????, ??? ?????? ??????θεραπε?α ??? ??? ?????????? ???? ??????????????? ??????.