Vibration analysis of cutting force in titanium alloy milling

Antonialli, Armando Ítalo Sette; Diniz, Anselmo Eduardo; Pederiva, Robson

doi:10.1016/j.ijmachtools.2009.09.006

Cited by 62 publications

(16 citation statements)

References 9 publications

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“…In the same vein, vibration is more prone to occur in milling titanium due to self-excited vibrations (i.e. chatter) between the workpiece and cutting tool (owing to its low E modulus) [38]. Localised shearing, which is correlated to the generation of cyclic force, is responsible for self-exited vibration.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of system parameters for minimum cutting fluid consumption when machining Ti-6Al-4V using a novel supply system

Gariani

Shyha

Huo

2017

Int J Adv Manuf Technol

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This paper presents the development of a new controlled cutting fluid impinging supply system (Cut-list) to deliver an accurate quantity of cutting fluid into machining zones through precisely oriented coherent round nozzles. The performance of the new system was evaluated against a conventional system during the step shoulder milling of Ti-6Al-4V using a water-miscible vegetable oil-based cutting fluid, which was phase 1 in this comprehensive study. The use of Cut-list resulted in a significant reduction up to 42% in cutting fluid consumption as well as reductions in cutting force, tool flank wear, average surface roughness (R a ) and burr height (Gariani et al. in Appl Sci 7(6):560, 2017). This paper details phase 2 of the study which was aimed to investigate the effects of working conditions, nozzle positions/angles and impinging distances on key process measures including cutting forces, workpiece temperature, tool wear, burr formation and average surface roughness of the machined surface. Feed rate showed a significant effect on mean values of cutting force, burr formation and surface roughness, whereas average workpiece temperature and flank wear values are very sensitive to cutting speed. Nozzle position at a 15°angle in the feed direction and 45°/60°against feed direction assisted in minimising workpiece temperature. An impinging distance of 55/75 mm is also necessary to control burr formation, workpiece temperature and average surface roughness. It can be concluded that Cut-list gave promising results compared to conventional flood cooling systems in terms of the evaluated machining outputs. Therefore, the new system can be considered as a feasible, efficient and ecologically beneficial solution, giving less fluid consumption in machining processes.

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Section: Introductionmentioning

confidence: 99%

Experimental analysis of system parameters for minimum cutting fluid consumption when machining Ti-6Al-4V using a novel supply system

Gariani

Shyha

Huo

2017

Int J Adv Manuf Technol

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“…The results show that the simulation can predict the actual chatter frequency, which is very helpful for improving thin-wall milling. Armando Ítalo Sette Antonialli [9] studied the influence of tool entering angle and vibration on the stability of the titanium alloy milling process and on tool life. The research found that lower entering angle could make tool life longer,and Lower vibration will prevent damage to the cutting edge caused by fatigue, which can solve the problem of tool wear reduction.…”

Section: Introductionmentioning

confidence: 99%

“…With economic development, many project will be founded in the lower temperature area.In order to display the function of geotextile under the lower temperature, the creep property should be studied. Now many domestic and overseas scholars [2][3][4][5][6][7][8][9][10] have been studied on creep test of geogrids. TGDG25 one-way tensile geogrids is used is indoor test.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on milling force in processing Ti6Al4V thin-walled part

Jiang¹,

Jia²,

Liu³

2017

Proceedings of the 2017 6th International Conference on Measurement, Instrumentation and Automation (ICMIA 2017)

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Abstract. Ti6Al4V thin-walled part have been widely used in the field of aerospace, shipbuilding with the excellent properties of light weight, high strength, good corrosion resistance. But the thin-walled part has lower rigidity; the cutting force and vibration generated in cutting process can deform the work piece easily and make surface quality worse. In order to perfect machining quality and improve processing efficiency of Ti6Al4V thin-walled part, the paper study the significance of cutting speed, feed per tooth, axial cutting depth and radial cutting depth on the milling force, and do a further research on experience formula of milling force. The results show that: the cutting force FX, FY and FZ increase with the increasing of feed per tooth, axial cutting depth and radial cutting depth. The cutting force FX and FY increase firstly then decrease with the increase of cutting speed. The cutting force FZ changes volatility with the increase of cutting speed. The radical cutting depth has the largest significance on cutting force. The error of milling force formula established by experimental date is about 20﹪. So the formula can calculate the milling force well.

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“…Due to the high tendency of vibration in titanium machining and in the milling process (interrupted cutting), it is necessary to keep vibration under control in order to increase tool life and achieve high productivity. Antonialli et al [10] showed that when tool vibration frequency is far from the natural frequency of the system, the tool wears due to the common wear mechanisms (diffusion and adhesion). On the other hand, when this frequency is close to the natural frequency of the system, usually the tool life is shorter due to tool breakage.…”

Section: Introductionmentioning

confidence: 99%

“…In their work, Antonialli et al [10] analyzed the frequency response function (FRF) of the milling cutters and verified that tool vibration was amplified above 400 Hz. Their analysis of cutting forces in the frequency domain showed that the only tool that broke presented the highest radial load in the frequency band between 400 Hz and 1 kHz.…”

Section: Introductionmentioning

confidence: 99%

Correlating tool life and workpiece surface roughness with tool stiffness in the milling of Ti-6Al-4V alloy with toroidal tool

Kull¹,

Diniz²,

Pederiva³

2014

Int J Adv Manuf Technol

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Titanium and its alloys are known as difficult to machine materials because of their unique combination of properties, such as high strength at elevated temperatures, low thermal conductivity, high chemical reactivity with almost all tool materials, and low Young's modulus (which favors vibration). Because of the high tendency of vibration titanium machining (specially milling process) has, it is necessary to keep vibration under control in order to achieve high productivity. This work focused on the study of tool life, cutting forces, and workpiece roughness in the end milling of Ti-6Al-4V alloy. The main objective was to find a kind of tool holder to provide reduction of vibration in the milling process, increasing tool life, and decreasing surface roughness. Besides the conventional tool holders made of steel and of cemented carbide, two others were tried, both made of steel: the first was hollow (the steel tool holder was drilled in its axis direction) and in the second tool holder, the hole was filled with polyurethane (PU). These modified tool holders exhibited higher natural frequency than the conventional holders but, due to its lower stiffness, tool lives in the milling experiments were shorter when they were used. The most rigid tool holders (the conventional ones) were able to resist to the highfrequency vibration caused by both the fluctuation of chip thickness and the segmented chips and, consequently, presented longer tool lives. Adhesion was the main wear mechanism in all tests.

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Vibration analysis of cutting force in titanium alloy milling

Cited by 62 publications

References 9 publications

Experimental analysis of system parameters for minimum cutting fluid consumption when machining Ti-6Al-4V using a novel supply system

Experimental analysis of system parameters for minimum cutting fluid consumption when machining Ti-6Al-4V using a novel supply system

Experimental study on milling force in processing Ti6Al4V thin-walled part

Correlating tool life and workpiece surface roughness with tool stiffness in the milling of Ti-6Al-4V alloy with toroidal tool

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