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End milling of Ti-48Al-2Cr-2Nb under high-feed conditions

Finkeldei Daniel, Bleicher Friedrich

Journal of Machine Engineering

2019

Vol. 19, No. 2

63--72

Gamma titanium aluminides are fast developing materials and particularly in use for aerospace and automotive components. Due to the high cutting forces and raised cutting temperatures achieved during milling of this material, tool-wear is a crucial factor. Thus, increasing of the cutting speed leads to a significant rise of the cutting temperature. On the one hand, the implementation of innovative cooling strategies can reduce the heat flux in the cutting tool. On the other hand, analysing of the heat generation during the cutting process can lead to improved machining strategies. Previous research attempts assess microstructural and chip formation, as well as tool-wear in finish milling of this material. However, few have investigated the optimal cutting strategies in roughing and finishing of titanium aluminides. In this study, the milling operation under high feed rate should be investigated and the potential to improve chip removal rate and tool life should be determined.

Milling of AZ91 and AlSi12 using different edge geometries of CVD diamond thick film

Ozsvath P., Szmejkal A., Takacs J.

International Journal of Applied Mechanics and Engineering

2010

Vol. 15, no 2

335-342

The couple of magnesium alloy and aluminium alloy is a typical example of a hybrid material which is used in some high-tech engine blocks. The machinability of the constuituents in a hybrid workpiece is different which means the cutting edge material and its geometry has to be optimized for the best compromise. Since the CVD diamond thick film is an up-to-date edge material for light metals, it is a promising choice for machining of magnesium-aluminium hybrid material. The paper presents the influence of cutting edge geometry on the cutting force and specific cutting force during face milling of AZ91 magnesium alloy and AlSi12 aluminium alloy using CVD diamond thick film without coolant-lubricant.

Opór właściwy skrawania w procesie frezowania walcowego stali WCL

Miernikiewicz A., Paśko R., Struzikiewicz G.

Czasopismo Techniczne. Mechanika

2005

R. 102, z. 14-M

21--39

W niniejszym artykule przedstawiono wyniki prac badawczych związanych z określeniem wartości oporu właściwego skrawania przy frezowaniu walcowym. Obliczono pole poprzeczne przekroju warstwy skrawanej przy frezowaniu walcowym. Wykonano badania doświadczalne zależności oporu właściwego skrawania od wielkości posuwu na ostrze oraz prędkości skrawania.

This paper presents the results of experimental research work concerning the values of specific cutting force in peripheral milling. Transverse cut of layer field in milling was calculated. Experimental research in the field of the relations among specific cutting force and feed per tooth and cutting speed was conducted.