Patent ID: 9566647
Date: 2017-02-14
CPC Classifications: B22F,B33Y,G03G,Y02P

Claim:
1. An additive manufacturing system for printing a three-dimensional part, the additive manufacturing system comprising: a mobile housing defining a front housing section and rear housing section; a photoreceptor drum defining a drum outer surface; a charging electrode positioned to apply electrostatic charge to the photoreceptor drum outer surface; a laterally stationary platform disposed outside the mobile housing adjacent a workpart, the laterally stationary platform comprising at least one charged transfer electrode; a controller circuit for traversing the mobile housing about the workpart while selectively applying at least one laser diode emission onto the photoreceptor drum to expose a layer definition on the photoreceptor drum outer surface, the controller circuit simultaneously rotating a front charged powder roller and a rear charged powder roller in counter rotational directions, respectively synchronized with and counter to the front and rear rotational directions of the photoreceptor drum, thereby presenting a developed portion of charged powder onto the layer definition of the photoreceptor drum and subsequently transferring said developed portion onto the workpart as respective metal print layers; front and rear microwave emitters disposed inside the mobile housing for fusing the respective metal print layers; and front and rear induction coils disposed inside the mobile housing for heating the workpart.