Surface integrity in cryogenic machining of nickel based alloy-Inconel 718
Surface integrity in cryogenic machining of nickel based alloy-Inconel 718
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DOI：
10.1016/j.jmatprotec.2010.12.013
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发表时间：
2011-04-01
影响因子：
6.3
通讯作者：
Jawahir, I. S.
中科院分区：
文献类型：
--
作者：
Pusavec, F.;Hamdi, H.;Jawahir, I. S.
在加工过程中，与质量相关的主要输出是加工零件表面的完整性。在加工难切削材料时，刀具寿命的急剧下降使得加工过程变得更加困难。通过考虑针对可持续运营定制的加工系统的更广泛的视角，在这项工作中，评估了替代低温加工的加工性能。针对冷却/润滑加工条件的不同组合，分析了加工表面的表面完整性特征作为深度的函数。加工表面和亚表面上的残余应力、表面硬度和表面粗糙度是本次工作中研究的重要特征。结果表明，低温加工工艺可以改善所有主要表面完整性特征，从而提高最终产品的质量水平。 (C) 2010 Elsevier B.V. 保留所有权利。
In machining processes, a major quality related output is integrity of the machined part surface. In machining of difficult-to-cut materials, a drastic decrease in tool-life makes the machining process even more difficult. By considering the broader perspective of the machining system tailored towards sustainable operations, in this work an alternative cryogenic machining is evaluated for machining performance. The surface integrity characteristics of machined surface as a function of depth have been analyzed for different combinations of cooling/lubrication machining conditions. The residual stresses on the machined surface and sub-surface, surface hardness, and surface roughness are among the significant characteristics studied in this work. The results show that cryogenic machining processes can be implemented to improve all major surface integrity characteristics, thus improving the final product quality level. (C) 2010 Elsevier B.V. All rights reserved.