抄録
The micro-CNC-incremental forming system for foil materials was developed as a microfactory cell. The principle of this flexible sheet metal forming system is called incremental forming by hammering. Small increments of sheet metal bending and bulging deformation are generated by hammering. Repeated step-by-step cycles result in variously shaped shell structures without dies. To realize these systems, small actuators, such as piezoelectric actuators, small linear sensors, and an X-Y stage driven by ultrasonic linear motors, are selected. The dimension of a punch(tip of the hammer) is 10 micrometers in diameter. The hammer is installed at the end of the beam, and the beam (handle) is resonantly oscillated by a piezoelectric actuator. Using this system, we formed a 900mm long micro car body shell without dies in a scanning electron microscopic field of view.
