scholarly journals High Speed Dry End Milling of Titanium Alloys with Coated Carbide Tool

Author(s):  
Hiroshi USUKI ◽  
Kiminori SATO ◽  
Satoshi FURUYA
2018 ◽  
Author(s):  
Kai Guo ◽  
Bin Yang ◽  
Jie Sun ◽  
Vinothkumar Sivalingam

Titanium alloys are widely utilized in aerospace thanks to their excellent combination of high-specific strength, fracture, corrosion resistance characteristics, etc. However, titanium alloys are difficult-to-machine materials. Tool wear is thus of great importance to understand and quantitatively predict tool life. In this study, the wear of coated carbide tool in milling Ti-6Al-4V alloy was assessed by characterization of the worn tool cutting edge. Furthermore, a tool wear model for end milling cutter is established with considering the joint effect of cutting speed and feed rate for characterizing tool wear process and predicting tool wear. Based on the proposed tool wear model equivalent tool life is put forward to evaluate cutting tool life under different cutting conditions. The modelling process of tool wear is given and discussed according to the specific conditions. Experimental work and validation are performed for coated carbide tool milling Ti-6Al-4V alloy.


2014 ◽  
Vol 564 ◽  
pp. 566-571
Author(s):  
K. Kamdani ◽  
Sulaiman Hasan ◽  
Mohd Amri Lajis

Inconel 718 is a registered trademark of Special Metals Corporation that refers to a family of austenitic nickel-chromium-based super alloys. This material usually being used or operate in high temperature and extreme condition like aerospace industry, turbocharger rotors and seals. This research presents an experimental study of the cutting force variation, surface roughness, tool life and tool wear in end milling Inconel 718. The experimental results showed that flank wear was the predominant failure mode affecting tool life for TiAlN and TiN coated carbide tool. TiAlN is the better coated tool than TiN because it produce better surface finish and resultant force. Feed rate is one of the parameter that effecting results in this experiment. The higher feed rate will shorten the life of the tool. Although for the cutting condition, the situation is quite different where the proper cutting speed will maintain the tool life and tool wear for cutting tool. The overall study shows that TiAlN coated carbide tool with cutting speed 100 m/min, depth of cut 0.5 mm and feed rate 0.1 mm/tooth is the optimum parameter in this experiment.


2014 ◽  
Vol 800-801 ◽  
pp. 526-530 ◽  
Author(s):  
Shu Cai Yang ◽  
Yu Hua Zhang ◽  
Quan Wan ◽  
Jian Jun Chen ◽  
Chuang Feng

The milling experiments were carried out using TiAlN and PCD coated carbide tools in high speed milling Ti6Al4V to compare and analyze tool wear and tool life of the two kinds of coating carbide tools. In addition, the effect of cooling and lubricating on tool wear is also studied. The results showed that fluid environment is not suitable for milling Ti6Al4V. PCD coating carbide tool can effectively increase the life of tool in high speed milling of Ti6Al4V.


2013 ◽  
Vol 651 ◽  
pp. 436-441
Author(s):  
Wei Wei Liu ◽  
Xu Sheng Wan ◽  
Yuan Yu ◽  
Feng Li ◽  
Hao Chen

Through the orthogonal test of the TiALN coated carbide tool high-speed milling of high-temperature alloy GH4169, the empirical formula of the tool life are acquired by using multiple linear regression method. On the basis of this formula, studying the absolute sensitivity and relative sensitivity of TiALN coated carbide tool life for milling speed, depth of cut and feed; The results showed that in the process of high-speed milling of high-temperature alloy GH4169, tool life decreased with the increase of milling speed, feed and depth of cut; tool life is most sensitive to the change of milling speed; change of feed take second place and milling depth is the least sensitive.


2011 ◽  
Vol 264-265 ◽  
pp. 1228-1233 ◽  
Author(s):  
A. Daymi ◽  
M. Boujelbene ◽  
E. Bayraktar ◽  
A. Ben Amara ◽  
D. Katundi

Titanium alloys have been widely used in industries, especially aerospace, energy and medical industries, due to their good mechanical and chemical properties. However, titanium alloys are typically difficult-to-cut materials. Milling induced surface integrity, including anisotropic surface roughness, residual stress, surface microstructure alterations and microhardness, has received little attention. This work investigated the effect of machining conditions, especially the federate, on surface integrity of workpiece of Ti-6Al-4V alloy machined using high speed ball end milling process. The experimental tests were performed at various cutting parameters and carried out in dry conditions on a vertical five-axis CNC milling machine, using a coated carbide tool. Surface finish was studied based on 3D topographic maps and microhardness depth profiles beneath the machined surface. Microstructure of the sub-machined surface was observed using an optical microscope in order to investigate the metallurgical deformation. X-ray diffraction analysis is performed to obtain the residual stress distribution beneath the surface.


2016 ◽  
Vol 2016.11 (0) ◽  
pp. A36
Author(s):  
Reiji SUZUKI ◽  
Masato OKADA ◽  
Hidehito WATANABE ◽  
Masaaki OTSU

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