Maximal reduction of steps for iron casting one-of-a-kind parts

作者：Rodriguez Adrian^*; Norberto Lopez de Lacalle Luis; Calleja Amaia; Fernandez Asier; Lamikiz Aitzol

来源：Journal of Cleaner Production, 2012, 24: 48-55.

DOI：10.1016/j.jclepro.2011.11.054

• Milling sand blocks
• Casting moulds
• Reverse engineering
• Tool wear
• Pattern-less casting

The direct milling of sand blocks could be a feasible technique when rapid casting is necessary. Avoiding the use of a wood pattern, this technology aims at one-of-a-kind pieces or art pieces, where only one prototype or component is required, but lead times are required to be much reduced. This technology becomes a pattern-less one, reducing production stages, times and costs. %26lt;br%26gt;The key of the procedure is to achieve enough tool life when milling with carbide tools, avoiding the risk of sand destruction or surface damage during the free-form milling process. For this purpose, in this paper a special study of tool wear is presented. Moreover, other problems and difficulties are taker. into account, such as, machine Protection, sand quality or the optimum milling strategies. %26lt;br%26gt;Two examples of unique parts are also presented in this work. Following the proposed methodology, the reduction of time and cost for the rapid reproduction of one-of-a-kind pieces or for very short batches is economically and technologically feasible.

• 出版日期2012-3