http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이영문,배대원,장준호,Lee, Young-Moon,Bae, Dae-Won,Jang, Jun-Ho 한국기계가공학회 2005 한국기계가공학회지 Vol.4 No.2
In this study, the chip breaking characteristics of S, PbS and BiS free machining steels have been assessed. PbS free machining steel shows the lowest value of chip thickness ($t_c$) under the same cutting conditions. SM10C steel has the largest value of the chip cross-section area ratio ($R_{CA}$). As the feed rate becomes larger the chip breaking cycle time ($T_B$) decreases and the chip breaking index ($C_B$) increases. The properly controlled-C type chip has been obtained with the value of $C_B$ between 0.05 and 0.2. Free machining steel, PbS produces the properly controlled-C type chip in a wider feed rate range than other steels.
이영문(Young-Moon Lee),배대원(Dae-won Bae),김선일(Sun-Il Kim),황근식(keun-sik Hwang),손성필(Sung-Pil Son),박건우(Geon-Woo Park) 한국기계가공학회 2006 한국기계가공학회 춘추계학술대회 논문집 Vol.2006 No.-
In Ball end milling processes, characterized by use of rotating tools, the underformed chip volume varies periodically with the phase change of tool. In current study, as a new approach to analyze shear behaviors in the shear plane and chip-tool friction behaviors in the chip-tool contact region during an ball end milling process. In this approach, ball end milling process is transformed into an equivalent oblique cutting process. Experimental investigations for two sets of cutting tests i.e.. ball end milling and the equivalent oblique cutting tests were performed to verify the presented model.