Revolution IP, PLLC
Alpha alumina thin film for processing difficult-to-cut material and cast iron
Disclosed is an alpha alumina (α-Al2O3) thin film comprising the lower layer formed on the base material made from cemented carbide; and the α-Al2O3 thin film layer formed on the lower layer, wherein when the α-Al2O3 thin film layer is divided, from the total thickness (T) thereof, into a D1 layer which is from an interface layer to 0.15T, a D2 layer which is from 0.15T to 0.4T, and a D3 layer which is from 0.4T to 1T, an S1 (D3 layer grain size/D1 layer grain size) is 2-5.5 and an S2 (D2 layer grain size/D1 layer grain size) is 1.5-4.
KORLOY INC.
C C C C C
C09D C23C C23C C23C C23C
inventional inventional inventional inventional inventional
Jung Wook Dong Youl Jin Woo Jae Hoon Han Sung Sun Yong Sung Gu
Kim Lee Ahn Kang Kim Ahn Lee