期刊
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
卷 170, 期 3, 页码 516-523出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2005.05.055
关键词
rapid prototyping; tool steel; laser sintering
The effect of processing parameters and scanning strategies on the processing of H13 tool steel by direct laser re-melting (DLRM) has been investigated. The density of samples produced was significantly increased by the use of a modified knit-scan strategy. The effects of line spacing and scan speed were also studied, with optimum values of 0.10mm, and 100-150mm/s, respectively, being established. Even with the optimum conditions, the maximum density achieved with H13 tool steel was about p = 6.47 g/cm(3) (about 84% of its theoretical value), significantly lower than that which has been obtained with 316L stainless steels. (c) 2005 Elsevier B.V. All rights reserved.
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