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Patent – Printhead and additive manufacturing methods

This patent of Coalia relates to a three-dimensional printhead, a radiation emitting device, as well as methods of additive manufacturing and extrusion. The printhead includes a radiant plate configured to transmit thermal energy to print material deposited on a surface. A radiation emitting device can be attached to an additive manufacturing or extrusion device and includes a radiant plate and a heating element. Additive manufacturing and extrusion processes use radiation to heat a material deposition surface. The characteristics of the products thus manufactured, for example the degree of porosity, warping, isotropy, maximum stress, internal stress, impact resistance, flexural strength, strain at break, modulus of stiffness, crystallinity rate and sealing are improved.