Abstract: A method and apparatus for forming a metallic sheet having a concave-convex profile by chemical vapor deposition utilizes a die having a profiled surface defined by a number of spaced protrusions. The method comprises covering at least a portion of the profiled surface with a mask of transparent material in such a way that the mask comes into a closely adjacent relation to the top faces of the protrusions, feeding at a reaction gas of a metallic compound to a restricted space defined between the mask and the profiled surface, radiating a light beam through the transparent mask onto the profiled surface in order to decompose the reaction gas and deposit on the profiled surface a metallic layer, and removing the resulting deposited metallic layer from the profiled surface to obtain a metallic sheet having a concave-convex profile corresponding to the profiled surface of the die.