Surface Roughness Analysis in Machining of Stainless Steel by Trochoidal Milling under Dry and MQL Cutting Environment

Authors : Tuğçenur Özcan, Mustafa Günay

Pages : 1559-1567

Doi:10.29109/gujsc.1798793

View : 30 | Download : 43

Publication Date : 2025-12-29

Article Type : Research Paper

Abstract :Trochoidal milling is a machining technique that enables high-efficiency machining of particularly hard-to-cut materials using a specific tool path at high feed and cutting speeds. This research focused on the impacts of dry and MQL milling on surface roughness (Ra) in trochoidal milling groove opening on AISI 304 stainless steel. Experiments were conducted with a TiAlN-coated carbide end mill using parameters such as variable cutting speed, axial depth of cut (ap), and constant feed. Analysis of variance was used for evaluating the effects of the parameters on surface roughness. While surface roughness increased in dry cutting with increasing ap, it decreased in MQL environment. This result was ascribed to the stable cutting process resulting from the MQL application\\\'s reduction of friction along the milling cutter edge and the prevention of BUE formation. Based on the results, the minimum Ra value of 0.386 μm was acquired in the MQL cutting environment at a cutting speed of 150 m/min and a ap of 8 mm. According to Ra measurements from four groove surfaces, the surface roughness obtained in the MQL environment was on average 17.5% lower than in dry cutting. According to the ANOVA results, cutting speed was the most effective parameter in trochoidal milling under dry and MQL environments. These results prove the positive effect of the MQL application in trochoidal milling operations on increasing machining efficiency.
Keywords : Trokoidal frezeleme, Minimum miktarda yağlama (MQL), Yüzey pürüzlülüğü, Kanal açma, İstatistiksel analiz

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