Abstract
The vibration-assisted cutting was performed to fabricate surface microtextures composed of numerous periodical complicated concavo-convex patterns anticipating future usage as the microtexture mold for injection molding. In the experiment, a pure copper plate was machined using a sharply pointed triangular diamond indenter tip vibrated by a piezo actuator in the direction of the cutting depth with μm order amplitude and kHz order frequency. As a result, a textured surface composed of numerous inverted triangular pyramidal impressions surrounded by pileups are successfully fabricated, and their average dimensions are less than 0.3 μm in height and 0.7 μm and 1 μm in pitches in cutting and feed directions, respectively.
