Taguchi Analysis of surface roughness and delamination associated with various cemented carbide K10 end mills in milling of GFRP

Abstract

This Paper presents a study of surface roughness, precision and delamination factor in use of Ti-Namite carbide K10 end mill, Solid carbide K10 end mill and Tipped Carbide K10 end mill. A plan of experiment based on Taguchi was established with prefixed cutting parameters and the machining was performed. An Surfcoder to examine the surface roughness and Infrared Thermography to examine the delamination of chopped Glass fiber-reinforced plastic (GFRP) laminates was used. Earlier works reports that cutting velocity and feed rate makes significant contribution to overall performance. But, the experimental results of this paper indicates that the depth of cut are recognised to make the most significant contribution to the overall performance as compared to cutting velocity and feed rate. The objective was to establish a correlation between cutting velocity, feed rate and depth of cut with surface roughness and delamination in a GFRP laminate. The correlation was obtained by multiple-variable linear regression using Minitab14 software.

Laminant Kompozitin Cep Frezelenmesinde Yüzey Pürüzlülüğü Ve Boyutsal Tamlığın Değerlendirilmesi

“…LK'lerin işlenmesi ile ilgili çalışmaların çoğunluğu delme üzerinedir. Kompozitin türü ve malzemesi olarak bakıldığında ise LK'lerin frezelenmesi ile ilgili araştırmaların sayısı oldukça sınırlı olup çalışmalar daha çok karbon elyaf takviyeli plastik (CFRP) [1][2][3][4][5][6][7][8][9][10] ve cam elyaf takviyeli plastik (GFRP) [11][12][13][14][15] LK'lerin frezelenmesi üzerinedir. Valarmathi vd, orta yoğunlukta lif levha ahşap kompozit panellerin yüksek hız çeliği (HSS) takımlarla işlenmesinde minimum yüzey pürüzlülüklerinin elde edilmesi için düşük ilerleme miktarı ve yüksek kesme hızının seçilmesi gerektiğini bildirmişlerdir [1].…”

“…Raj ve Perumal tarafından yapılan çalışmanın amacı parçacıklı GFRP laminatların Ti-Namite WC parmak freze, WC parmak freze ve dökme uçlu WC parmak freze takımlarla frezelenmesinde kesme hızı, ilerleme miktarı ve kesme derinliği ile yüzey pürüzlülüğü ve delaminasyon arasındaki ilişkiyi araştırmaktır. Araştırmanın sonuçları kesme derinliğinin kesme hızı ve ilerleme miktarına kıyasla genel performansa en fazla katkıda bulunduğunu göstermiştir [15]. Goli vd.…”

Taguchi analysis of tool wear and delamination in milling of GFRP composite using coated K10 end mill

“…The width of the wear land is usually taken as a measure of the amount of wear and can be readily determined by means of a toolmaker's microscope. In the end, excessive flank wear will be lead to poor surface texture, inaccuracy and increasing friction as the edge changes shape (Tsao, 2008: Raj andElaya Perumal, 2010;Ashok et al, 2013;Babu et al, 2015;Shunmugesh et al, 2016;IGI Global, 2017).…”

Parametric analysis of GFRP composites in CNC milling machine using Taguchi method

“…They established a correlation between cutting velocity, feed rate and depth of cut with surface roughness and delamination in a GFRP laminates. The investigation reveals that, Ti-Namite coated carbide end mill and tipped carbide end mill produces less damage on GFRP composite material than the solid carbide end mill [11]. The influence of cutting conditions on surface roughness during turning by design of experiments and regression analysis was studied by Paulo Davim [12].…”