METHOD AND APPARATUS FOR INCREASING BONDING IN MATERIAL EXTRUSION ADDITIVE MANUFACTURING

摘要

A method of forming a three dimensional object comprising: depositing a layer of thermoplastic polymeric material in a preset pattern on a platform to form a deposited layer; directing an energy source, via an energy beam at an energy source target area on the deposited layer to increase the surface energy of the deposited layer at the energy source target area; contacting the energy source target area with a subsequent layer wherein the subsequent layer is deposited along a path of the preset pattern; wherein directing an energy source at the energy source target area comprises applying energy to the layer at an area preceding the depositing of the subsequent layer to that area; and repeating the preceding steps to form the three dimensional object.