Investigation of surface integrity in dry machining of Inconel 718
Investigation of surface integrity in dry machining of Inconel 718
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DOI：
10.1007/s00170-013-5198-0
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发表时间：
2013-12-01
影响因子：
3.4
通讯作者：
Umbrello, Domenico
中科院分区：
文献类型：
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作者：
Umbrello, Domenico
近年来，先进航空航天材料的加工有所增长，尽管钛或镍基合金等合金的难加工特性导致更高的切削力、快速的刀具磨损和更多的热量产生。因此，通常使用冷却润滑剂进行加工。为了降低生产成本并使加工过程对环境安全，目标是通过消除切削液走向干切削。这一目标可以通过使用涂层刀具，通过提高切割速度，并在表面完整性和产品质量方面改善产品性能来实现。研究了涂层刀具干式加工Inconel718合金时，加工速度和进给量对表面完整性的影响。重点研究了加工条件对表面粗糙度、影响层、显微硬度、晶粒度和显微组织变化的影响。结果表明，加工条件对影响产品整体性能的表面完整性相关参数有显着影响。
Machining of advanced aerospace materials have grown in the recent years although the diffucult-to-machine characteristics of alloys like titanium or nickel-based alloys cause higher cutting forces, rapid tool wear, and more heat generation. Therefore, machining with the use of cooling lubricants is usually carried out. To reduce the production costs and to make the processes environmentally safe, the goal is to move toward dry cutting by eliminating cutting fluids. This objective can be achieved by using coated tool, by increasing cutting speed, and by improving the product performance in term of surface integrity and product quality. The paper addresses the effects of cutting speed and feed on the surface integrity during dry machining of Inconel 718 alloy using coated tools. In particular, the influence of the cutting conditions on surface roughness, affected layer, microhardness, grain size, and microstructural alteration was investigated. Results show that cutting conditions have a significant effect on the parameters related to the surface integrity of the product affecting its overall performance.