Effects of Tool Rake Angle on the Curved Radius during Planing-Forming Process of Fine Heat Sink
Planing-forming is a new process to machine fin heat sinks. This paper investigates the effects of the tool rake angle on the curved radius during planing-forming process by 2-D coupled thermo-mechanical finite element method and experiment verification. With the increasing of the tool rake angle from 0° to 30°, the curved radius increased. When the tool rake increased form 30°to 60°, the curved radius turned stable. After the chip displaced from the tool rake, the fin’s curling up due to the distribution gradient of the residual strain.
L. Wei et al., "Effects of Tool Rake Angle on the Curved Radius during Planing-Forming Process of Fine Heat Sink", Advanced Materials Research, Vols. 317-319, pp. 370-373, 2011