The Experts below are selected from a list of 1533234 Experts worldwide ranked by ideXlab platform
Matthew S Dargusch - One of the best experts on this subject based on the ideXlab platform.
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an investigation of cutting forces and cutting temperatures during laser assisted machining of the ti 6cr 5mo 5v 4al beta titanium alloy
International Journal of Machine Tools & Manufacture, 2012Co-Authors: R Rahman A Rashid, Gui Wang, Matthew S DarguschAbstract:Beta titanium alloys are increasingly attractive because of their superior combination of properties such as high strength and fracture toughness. These alloys are finding potential applications in the manufacture of aircraft components such as landing gear, springs and nacelles. Innovative machining solutions are required to reduce the cost of production of beta titanium components and improve cycle time. Previous research has reported that these alloys have poor machinability compared to the more common Ti–6Al–4V titanium alloy. This paper aims to investigate the behaviour of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy using laser assisted machining (LAM). The LAM technique utilises a laser beam which is applied onto the workpiece surface locally in front of the cutting tool in order to provide external heat to significantly reduce the yield strength of the material. This reduces the cutting forces required to machine the workpiece and increases metal removal rates. In this study, the effect of the laser beam on the cutting forces and cutting temperature is critically analysed over a wide range of feed rates and cutting speeds and is compared to the results obtained from conventional (un-assisted) machining of this beta titanium alloy. This investigation has shown that LAM significantly reduces cutting forces within a certain range of cutting parameters. Maximum benefit was achieved at feed rates between 0.15 and 0.25 mm/rev and cutting speeds between 25 and 100 m/min at a laser power of 1200 W during LAM of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy.
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An investigation of cutting forces and cutting temperatures during laser-assisted machining of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy
International Journal of Machine Tools and Manufacture, 2012Co-Authors: R.a. Rahman Rashid, Gui Wang, Shoujin Sun, Matthew S DarguschAbstract:Beta titanium alloys are increasingly attractive because of their superior combination of properties such as high strength and fracture toughness. These alloys are finding potential applications in the manufacture of aircraft components such as landing gear, springs and nacelles. Innovative machining solutions are required to reduce the cost of production of beta titanium components and improve cycle time. Previous research has reported that these alloys have poor machinability compared to the more common Ti–6Al–4V titanium alloy. This paper aims to investigate the behaviour of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy using laser assisted machining (LAM). The LAM technique utilises a laser beam which is applied onto the workpiece surface locally in front of the cutting tool in order to provide external heat to significantly reduce the yield strength of the material. This reduces the cutting forces required to machine the workpiece and increases metal removal rates. In this study, the effect of the laser beam on the cutting forces and cutting temperature is critically analysed over a wide range of feed rates and cutting speeds and is compared to the results obtained from conventional (un-assisted) machining of this beta titanium alloy. This investigation has shown that LAM significantly reduces cutting forces within a certain range of cutting parameters. Maximum benefit was achieved at feed rates between 0.15 and 0.25 mm/rev and cutting speeds between 25 and 100 m/min at a laser power of 1200 W during LAM of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy.
R Rahman A Rashid - One of the best experts on this subject based on the ideXlab platform.
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an investigation of cutting forces and cutting temperatures during laser assisted machining of the ti 6cr 5mo 5v 4al beta titanium alloy
International Journal of Machine Tools & Manufacture, 2012Co-Authors: R Rahman A Rashid, Gui Wang, Matthew S DarguschAbstract:Beta titanium alloys are increasingly attractive because of their superior combination of properties such as high strength and fracture toughness. These alloys are finding potential applications in the manufacture of aircraft components such as landing gear, springs and nacelles. Innovative machining solutions are required to reduce the cost of production of beta titanium components and improve cycle time. Previous research has reported that these alloys have poor machinability compared to the more common Ti–6Al–4V titanium alloy. This paper aims to investigate the behaviour of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy using laser assisted machining (LAM). The LAM technique utilises a laser beam which is applied onto the workpiece surface locally in front of the cutting tool in order to provide external heat to significantly reduce the yield strength of the material. This reduces the cutting forces required to machine the workpiece and increases metal removal rates. In this study, the effect of the laser beam on the cutting forces and cutting temperature is critically analysed over a wide range of feed rates and cutting speeds and is compared to the results obtained from conventional (un-assisted) machining of this beta titanium alloy. This investigation has shown that LAM significantly reduces cutting forces within a certain range of cutting parameters. Maximum benefit was achieved at feed rates between 0.15 and 0.25 mm/rev and cutting speeds between 25 and 100 m/min at a laser power of 1200 W during LAM of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy.
Gui Wang - One of the best experts on this subject based on the ideXlab platform.
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an investigation of cutting forces and cutting temperatures during laser assisted machining of the ti 6cr 5mo 5v 4al beta titanium alloy
International Journal of Machine Tools & Manufacture, 2012Co-Authors: R Rahman A Rashid, Gui Wang, Matthew S DarguschAbstract:Beta titanium alloys are increasingly attractive because of their superior combination of properties such as high strength and fracture toughness. These alloys are finding potential applications in the manufacture of aircraft components such as landing gear, springs and nacelles. Innovative machining solutions are required to reduce the cost of production of beta titanium components and improve cycle time. Previous research has reported that these alloys have poor machinability compared to the more common Ti–6Al–4V titanium alloy. This paper aims to investigate the behaviour of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy using laser assisted machining (LAM). The LAM technique utilises a laser beam which is applied onto the workpiece surface locally in front of the cutting tool in order to provide external heat to significantly reduce the yield strength of the material. This reduces the cutting forces required to machine the workpiece and increases metal removal rates. In this study, the effect of the laser beam on the cutting forces and cutting temperature is critically analysed over a wide range of feed rates and cutting speeds and is compared to the results obtained from conventional (un-assisted) machining of this beta titanium alloy. This investigation has shown that LAM significantly reduces cutting forces within a certain range of cutting parameters. Maximum benefit was achieved at feed rates between 0.15 and 0.25 mm/rev and cutting speeds between 25 and 100 m/min at a laser power of 1200 W during LAM of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy.
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An investigation of cutting forces and cutting temperatures during laser-assisted machining of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy
International Journal of Machine Tools and Manufacture, 2012Co-Authors: R.a. Rahman Rashid, Gui Wang, Shoujin Sun, Matthew S DarguschAbstract:Beta titanium alloys are increasingly attractive because of their superior combination of properties such as high strength and fracture toughness. These alloys are finding potential applications in the manufacture of aircraft components such as landing gear, springs and nacelles. Innovative machining solutions are required to reduce the cost of production of beta titanium components and improve cycle time. Previous research has reported that these alloys have poor machinability compared to the more common Ti–6Al–4V titanium alloy. This paper aims to investigate the behaviour of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy using laser assisted machining (LAM). The LAM technique utilises a laser beam which is applied onto the workpiece surface locally in front of the cutting tool in order to provide external heat to significantly reduce the yield strength of the material. This reduces the cutting forces required to machine the workpiece and increases metal removal rates. In this study, the effect of the laser beam on the cutting forces and cutting temperature is critically analysed over a wide range of feed rates and cutting speeds and is compared to the results obtained from conventional (un-assisted) machining of this beta titanium alloy. This investigation has shown that LAM significantly reduces cutting forces within a certain range of cutting parameters. Maximum benefit was achieved at feed rates between 0.15 and 0.25 mm/rev and cutting speeds between 25 and 100 m/min at a laser power of 1200 W during LAM of the Ti–6Cr–5Mo–5V–4Al beta titanium alloy.
M.c. Marco De Lucas - One of the best experts on this subject based on the ideXlab platform.
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High temperature oxidation resistance and microstructure of laser-shock peened Ti-Beta-21S
Surface and Coatings Technology, 2020Co-Authors: L. Lavisse, A. Kanjer, P. Berger, V. Optasanu, Cyril Gorny, Patrice Peyre, T. Montesin, M.c. Marco De LucasAbstract:Improving the high temperature (HT) resistance of titanium alloys is currently a technological challenge for extending their use in aerospace engines. Ti-Beta-21S is a metastable $\beta$ titanium alloy specifically designed for high temperature applications up to 593 °C. We report the effect of a surface treatment by laser-shock peening (LSP) on the high temperature behavior of Ti-Beta-21S in order to increase further its maximum service temperature. The oxidation kinetics at 700 °C for duration up to 3000 h showed that the LSP treatment increases the oxidation resistance of Ti-Beta-21S. The effects of the LSP treatment on the alloy microstructure, its evolution at high temperature and the diffusion of light atmospheric elements (oxygen and nitrogen) are also reported.
L. Lavisse - One of the best experts on this subject based on the ideXlab platform.
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High temperature oxidation resistance and microstructure of laser-shock peened Ti-Beta-21S
Surface and Coatings Technology, 2020Co-Authors: L. Lavisse, A. Kanjer, P. Berger, V. Optasanu, Cyril Gorny, Patrice Peyre, T. Montesin, M.c. Marco De LucasAbstract:Improving the high temperature (HT) resistance of titanium alloys is currently a technological challenge for extending their use in aerospace engines. Ti-Beta-21S is a metastable $\beta$ titanium alloy specifically designed for high temperature applications up to 593 °C. We report the effect of a surface treatment by laser-shock peening (LSP) on the high temperature behavior of Ti-Beta-21S in order to increase further its maximum service temperature. The oxidation kinetics at 700 °C for duration up to 3000 h showed that the LSP treatment increases the oxidation resistance of Ti-Beta-21S. The effects of the LSP treatment on the alloy microstructure, its evolution at high temperature and the diffusion of light atmospheric elements (oxygen and nitrogen) are also reported.