MANUFACTURE OF ARTICLES WITH CONTROLLED DENSITY DISTRIBUTION

摘要

An article is formed from particulate material using a method comprising the steps of forming layers from the particulate material and compressing the body, wherein the body (13) is formed from a plurality of layers (15, 16, 17) or regions of particulate material, one or more of the layers or regions having different properties to the other one or more layers or regions so that the density distribution produced when the body is compressed is controllable.