Theoretical Estimation of Dicing Blade Grindability for Different Abrasive Grain Sizes

by Takuya Adachi, Koji Matsumaru, & Kozo Ishizaki AZojomo, 2 Jun 2006 Grindability of a dicing blade was estimated from dicing speed under constant feeding-force dicing process. Theoretical dicing speeds were calculated from the plowing speeds of abrasive diamond grains. The sunken depths of abrasive grains were estimated from the Vickers Hardness. The dicing speed was estimated for different abrasive grain sizes using the projection area of the abrasive grains, the number of abrasive grains, distributions of abrasive grains and the turning speed of dicing blades, assuming spherical abrasive grains. There is good agreement between the theoretical dicing speeds and the obtained empirical ones for dicing AlTiC. It was concluded that the grindability of a dicing blade depends on the size, number and distribution of abrasive grains on its surface. Read more