발간논문

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Vol.34, No.8, 1013 ~ 1021, 1996
Title
Research Paper - Solidification - : A Study on the Shape Control of Billet in Spray Forming Method
석현광Hyun Kwang Seok, 오규환Kyu Hwan Oh, 신돈순Don Su Shin, 이호인Ho In Lee, 나형용Hyung Yong Ra
Abstract
The shape variation of billet was investigated by numerical and experimental spray forming with various average substrate withdrawal velocity V￣, withdrawal velocity change interval △t and velocity deviation from average velocity V_(dev). The shape and diameter of billet which is manufactured at the condition of large V￣, △t, vary largely. When V￣, △t and V_(dev) are small, the shape of billet is similar to that of the billet with constant withdrawal velocity. The average diameter of billet is determined by V￣ independent of △t, V_(dev). With V￣ of 0.2 ㎜/sec, △t of 200 sec and V_(dev) of 0.2 ㎜/sec. billet of which diameter 230 ㎜ and height 1000 ㎜ was manufactured.
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