| 摘要 |
<p>A first method of forming a metal article involves inserting a removable preform 5 into a powder bed 3 and building part of the article on the preform 5 using an additive layer process. A second method of forming an article involves providing a first support 2, forming part of the article A using a powder layer manufacturing process up to a level 3a at or beneath the lowest point of a part of the article yet to be formed part which has a base spaced from the first support 2, locating a second support 5 beneath the location on which the part yet to be formed will lie, forming the remainder of the article including the part supported by the second support and then removing the supports 2 and 5.</p> |
