Abstract
Ultrasonic diamond grinding uses an ultrasonic oscillation effect for die steel face grinding. Smooth and glossy surfaces can be obtained successfully with little abrasive wear. The mirror finishing technique requires cutting edge truncation because the cutting edge shape of the tool affects the ground surface resulting from transcription of the cutting edge. This paper describes effect of the cutting edge truncation of an electroplated diamond tool used in ultrasonically assisted grinding. The truncated tool produced a flat ground surface with roughness of 0.13μmRz. The injection mold composed of freeform surfaces mimicking the key sheet of a cellular phone was finished using truncated electrodeposited diamond tools with a spherical shape.
