The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform
Y.s. Wong - One of the best experts on this subject based on the ideXlab platform.
-
a review on high speed machining of titanium alloys
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing, 2006Co-Authors: Mustafizur Rahman, Z.g. Wang, Y.s. WongAbstract:Titanium alloys have been widely used in the aerospace, biomedical and automotive industries because of their good strength-to-weight ratio and superior corrosion resistance. However, it is very difficult to machine them due to their poor machinability. When machining titanium alloys with conventional Tools, the Tool wear rate progresses rapidly, and it is generally difficult to achieve a cutting speed of over 60m/min. Other types of Tool materials, including ceramic, diamond, and cubic boron nitride (CBN), are highly reactive with titanium alloys at higher temperature. However, binder-less CBN (BCBN) Tools, which do not have any binder, sintering agent or catalyst, have a remarkably Longer Tool Life than conventional CBN inserts even at high cutting speeds. In order to get deeper understanding of high speed machining (HSM) of titanium alloys, the generation of mathematical models is essential. The models are also needed to predict the machining parameters for HSM. This paper aims to give an overview of recent developments in machining and HSM of titanium alloys, geometrical modeling of HSM, and cutting force models for HSM of titanium alloys.
-
Tool wear characteristics of binderless cbn Tools used in high speed milling of titanium alloys
Wear, 2005Co-Authors: Z.g. Wang, Mezanur Rahman, Y.s. WongAbstract:Abstract Titanium alloys are difficult-to-cut materials, and the performance of conventional Tools is poor when used to machine them. In this paper, a new Tool material, which is binderless cubic boron nitride (BCBN), is used for high-speed milling of a widely used titanium alloy Ti–6Al–4V. The performance and the wear mechanism of the Tool have been investigated when slot milling this alloy. This type of Tool manifests Longer Tool Life at high cutting speeds. Analyses based on the SEM and EDX suggest that adhesion of workpiece, attrition and diffusion–dissolution are the main wear mechanisms of the BCBN Tool when used in high-speed milling of Ti–6Al–4V.
-
high speed milling of titanium alloys using binderless cbn Tools
International Journal of Machine Tools & Manufacture, 2005Co-Authors: Z.g. Wang, Y.s. Wong, Mezanur RahmanAbstract:Abstract The performance of conventional Tools is poor when used to machine titanium alloys. In this paper, a new Tool material, which is binderless cubic boron nitride (BCBN), is used for high-speed milling of a widely used titanium alloy Ti–6Al–4V. The performance and the wear mechanism of the BCBN Tool have been investigated when slot milling the titanium alloy in terms of cutting forces, Tool Life and wear mechanism. This type of Tool manifests Longer Tool Life at high cutting speeds. Observations based on the SEM and EDX suggest that adhesion of workpiece and attrition are the main wear mechanisms of the BCBN Tool when used in high-speed milling of Ti–6Al–4V.
Z.g. Wang - One of the best experts on this subject based on the ideXlab platform.
-
a review on high speed machining of titanium alloys
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing, 2006Co-Authors: Mustafizur Rahman, Z.g. Wang, Y.s. WongAbstract:Titanium alloys have been widely used in the aerospace, biomedical and automotive industries because of their good strength-to-weight ratio and superior corrosion resistance. However, it is very difficult to machine them due to their poor machinability. When machining titanium alloys with conventional Tools, the Tool wear rate progresses rapidly, and it is generally difficult to achieve a cutting speed of over 60m/min. Other types of Tool materials, including ceramic, diamond, and cubic boron nitride (CBN), are highly reactive with titanium alloys at higher temperature. However, binder-less CBN (BCBN) Tools, which do not have any binder, sintering agent or catalyst, have a remarkably Longer Tool Life than conventional CBN inserts even at high cutting speeds. In order to get deeper understanding of high speed machining (HSM) of titanium alloys, the generation of mathematical models is essential. The models are also needed to predict the machining parameters for HSM. This paper aims to give an overview of recent developments in machining and HSM of titanium alloys, geometrical modeling of HSM, and cutting force models for HSM of titanium alloys.
-
A Review on High-Speed Machining of Titanium Alloys ∗
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing, 2006Co-Authors: Mustafizur Rahman, Z.g. Wang, Yoke San WongAbstract:Titanium alloys have been widely used in the aerospace, biomedical and automotive industries because of their good strength-to-weight ratio and superior corrosion resistance. However, it is very difficult to machine them due to their poor machinability. When machining titanium alloys with conventional Tools, the Tool wear rate progresses rapidly, and it is generally difficult to achieve a cutting speed of over 60m/min. Other types of Tool materials, including ceramic, diamond, and cubic boron nitride (CBN), are highly reactive with titanium alloys at higher temperature. However, binder-less CBN (BCBN) Tools, which do not have any binder, sintering agent or catalyst, have a remarkably Longer Tool Life than conventional CBN inserts even at high cutting speeds. In order to get deeper understanding of high speed machining (HSM) of titanium alloys, the generation of mathematical models is essential. The models are also needed to predict the machining parameters for HSM. This paper aims to give an overview of recent developments in machining and HSM of titanium alloys, geometrical modeling of HSM, and cutting force models for HSM of titanium alloys.
-
Tool wear characteristics of binderless cbn Tools used in high speed milling of titanium alloys
Wear, 2005Co-Authors: Z.g. Wang, Mezanur Rahman, Y.s. WongAbstract:Abstract Titanium alloys are difficult-to-cut materials, and the performance of conventional Tools is poor when used to machine them. In this paper, a new Tool material, which is binderless cubic boron nitride (BCBN), is used for high-speed milling of a widely used titanium alloy Ti–6Al–4V. The performance and the wear mechanism of the Tool have been investigated when slot milling this alloy. This type of Tool manifests Longer Tool Life at high cutting speeds. Analyses based on the SEM and EDX suggest that adhesion of workpiece, attrition and diffusion–dissolution are the main wear mechanisms of the BCBN Tool when used in high-speed milling of Ti–6Al–4V.
-
high speed milling of titanium alloys using binderless cbn Tools
International Journal of Machine Tools & Manufacture, 2005Co-Authors: Z.g. Wang, Y.s. Wong, Mezanur RahmanAbstract:Abstract The performance of conventional Tools is poor when used to machine titanium alloys. In this paper, a new Tool material, which is binderless cubic boron nitride (BCBN), is used for high-speed milling of a widely used titanium alloy Ti–6Al–4V. The performance and the wear mechanism of the BCBN Tool have been investigated when slot milling the titanium alloy in terms of cutting forces, Tool Life and wear mechanism. This type of Tool manifests Longer Tool Life at high cutting speeds. Observations based on the SEM and EDX suggest that adhesion of workpiece and attrition are the main wear mechanisms of the BCBN Tool when used in high-speed milling of Ti–6Al–4V.
Mezanur Rahman - One of the best experts on this subject based on the ideXlab platform.
-
Tool wear characteristics of binderless cbn Tools used in high speed milling of titanium alloys
Wear, 2005Co-Authors: Z.g. Wang, Mezanur Rahman, Y.s. WongAbstract:Abstract Titanium alloys are difficult-to-cut materials, and the performance of conventional Tools is poor when used to machine them. In this paper, a new Tool material, which is binderless cubic boron nitride (BCBN), is used for high-speed milling of a widely used titanium alloy Ti–6Al–4V. The performance and the wear mechanism of the Tool have been investigated when slot milling this alloy. This type of Tool manifests Longer Tool Life at high cutting speeds. Analyses based on the SEM and EDX suggest that adhesion of workpiece, attrition and diffusion–dissolution are the main wear mechanisms of the BCBN Tool when used in high-speed milling of Ti–6Al–4V.
-
high speed milling of titanium alloys using binderless cbn Tools
International Journal of Machine Tools & Manufacture, 2005Co-Authors: Z.g. Wang, Y.s. Wong, Mezanur RahmanAbstract:Abstract The performance of conventional Tools is poor when used to machine titanium alloys. In this paper, a new Tool material, which is binderless cubic boron nitride (BCBN), is used for high-speed milling of a widely used titanium alloy Ti–6Al–4V. The performance and the wear mechanism of the BCBN Tool have been investigated when slot milling the titanium alloy in terms of cutting forces, Tool Life and wear mechanism. This type of Tool manifests Longer Tool Life at high cutting speeds. Observations based on the SEM and EDX suggest that adhesion of workpiece and attrition are the main wear mechanisms of the BCBN Tool when used in high-speed milling of Ti–6Al–4V.
Susanne Norgren - One of the best experts on this subject based on the ideXlab platform.
-
study of Tool wear and chemical interaction during machining of ti6al4v
International Journal of Refractory Metals & Hard Materials, 2018Co-Authors: Bartek Kaplan, S Odelros, M Kritikos, R Bejjani, Susanne NorgrenAbstract:Abstract The present study concerns an investigation of the wear on three uncoated cemented carbide grades, with differing binder content and grain size, during longitudinal turning of Ti6Al4V as a function of cutting speed. The creater wear at end of Tool Life is studied in detail using electron microscopy and X-ray diffraction. It is observed that decreasing binder content results in slower wear progression and Longer Tool Life. The microstructure of the adhered layer is also dependent on the binder content, where a lower amount of binder results in an increase of dark precipitates in the adhered layer. X-ray diffraction confirms the presence of bcc-W as a chemical wear product at the interface. Diffraction peaks corresponding to cubic (Ti,V)C are also occasionally observed.
O Cakir - One of the best experts on this subject based on the ideXlab platform.
-
surface integrity of finished turned ti 6al 4v alloy with pcd Tools using conventional and high pressure coolant supplies
International Journal of Machine Tools & Manufacture, 2007Co-Authors: E O Ezugwu, J Bonney, Rosemar Batista Da Silva, O CakirAbstract:Abstract Surfaces generated when machining Ti–6Al–4V alloy with PCD Tools using conventional and high pressure coolant supplies was investigated. Longer Tool Life was recorded when machining Ti–6Al–4V with high-pressure coolant supplies and the recorded surface roughness Ra values were well below the Tool rejection criterion (1.6 μm) for all cutting conditions investigated. The micro-structure of the machined surfaces were examined on a scanning electron microscope. Micrographs of the machined surfaces show that micro-pits and re-deposited work material were the main damages to the surfaces. Micro-hardness analysis showed hardening of the top machined surfaces when machining with conventional coolant while softening of the subsurface layer was observed when machining under high-pressure coolant supplies. The later is probably due to lower heat generated, with the consequent tempering action when machining with PCD Tools with high-pressure coolant supplies. The microstructure below the machined surfaces had minimal or no plastic deformation when machining with conventional and high-pressure coolant supplies.
