Method for the production of heavily inclined surfaces in layers

摘要

The invention relates to a method for manufacturing a product in layers, said method comprising the following steps: (a) applying a layer of a curable material, (b) selectively curing predetermined zones of the applied layer on the basis of geometrical data of the product, (c) repeating steps (a) and (b) until the geometry of the product has been created in the form of cured material and (d) removing the uncured material. According to the invention, a finish allowance, for example one with a wedge-shaped cross-section, is applied in steps (a) and (b), in one, two or more product sections in which an angle (α) between an axis perpendicular to the layers and at least one surface section of a contour of the product exceeds a predetermined value, to said surface section in such a way that the angle (β) between the axis perpendicular to the layers and the external surface in said product section does not exceed said predetermined value.

主权项

1. A method for manufacturing a dental product in layers, said method comprising the following steps:
(a) applying a layer of a curable material; (b) selectively curing predetermined zones of the applied layer on the basis of geometrical data of the product; (c) repeating steps (a) and (b) until a geometry of the product has been created in the form of cured material; (d) removing the uncured material, to produce an intermediate product, wherein in one, two or more product sections in which an angle (α) between an axis perpendicular to the layers and at least one planar section of a contour of the product exceeds a predetermined value, a finish allowance is applied in steps (a) and (b) to said planar section in such a way that the angle (β) between the axis perpendicular to the layers and the external surface in said product section does not exceed said predetermined value at the intermediate product, wherein geometrical data of the product for removing the finish allowance is generated in a step preceding steps (a) to (d); e) transmitting the geometrical data to a manufacturing device for removal of the finish allowance; f) forwarding the intermediate product to the manufacturing device after all layers on the intermediate product are formed; and g) removing the finish allowance, in a subsequent step or steps, in the manufacturing device using said geometrical data so as to produce the dental product with heavily inclined surfaces.