Effect of cutting parameters and tool rake angle on the chip formation and adiabatic shear characteristics in machining Ti-6Al-4V titanium alloy

Li, Anhai; Zang, Jianbing; Zhao, Jun

doi:10.1007/s00170-020-05145-9

Cited by 25 publications

(8 citation statements)

References 27 publications

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“…When the cutting speed is 40~60 m/min, the cutting force further increases with the increasing cutting speed [ 22 ]. Li et al [ 23 ] pointed out that when the cutting speed is 40~80 m/min, the cutting force increases, that is, the material is mainly plastic deformation, and the strength is enhanced. According to the literature [ 24 , 25 ], the relationship between the cutting force and cutting speed during the machining of Ti6Al4V is also influenced by the interface conditions of the rake face.…”

Section: Resultsmentioning

confidence: 99%

Study on Characteristics for Reaming Titanium Alloy Ti6Al4V with Two Kinds of Cemented-Carbide Groove Reamers

Zhang

Wang

Han³

2022

Materials

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Titanium alloys have been extensively used in practical machining owing to their outstanding mechanical properties, high specific strength and low thermal deformation. In this study, the cutting experiments are carried out on Ti6Al4V material with right-hand and straight cemented-carbide groove reamers. The experimental results show that the cutting force with the right-hand reamer is smaller compared to straight groove reamer due to the groove structure. The main tool wear forms are micro-chipping, adhesive wear, abrasive wear, and coating falling off on the right-hand reamer, while there is a built-up edge and serious damage failure on the cutting edge of the straight groove reamer. Notch wear and pitting on the surface of the hole wall are mainly caused by chip adhesion and tool wear. The surface-roughness value is the lowest as the cutting speed is 60 m/min and the feed rate is 0.4 mm/rev. The holes machined by the right-hand reamer have a low hole diameter deviation with various cutting parameters. The geometric accuracy of cylindricity is higher as the feed rate is 0.4 mm/rev and the cutting speed is 40 m/min for both kinds of reamers, and the cylindricity is better with the right-hand reamer.

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Section: Resultsmentioning

confidence: 99%

Study on Characteristics for Reaming Titanium Alloy Ti6Al4V with Two Kinds of Cemented-Carbide Groove Reamers

Zhang

Wang

Han³

2022

Materials

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“…As a result, the degree to which the material softens in the shear zone increases. Under the burnishing effect of cutting tools, severe plastic deformation process lead to material softening effect and increase in deformation heat [20]. Consequently, the temperature along the adiabatic shear band rises with the cutting speed which occurred as well in cutting titanium and aluminium [20][16].…”

Section: Serrated Chip Formationmentioning

confidence: 99%

Finite Element Modelling of Serrated Chip Formation During Turning AZ31 Magnesium Alloy

Zakaria,

Mustapha,

Azmi

et al. 2023

J. Phys.: Conf. Ser.

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Machining metal alloys such as AZ31 magnesium alloy involve thermomechanical behavior between workmaterial and cutting tools. The interaction between workmaterial and cutting tools has affected the chip formation in metal cutting and cutting performance. This paper developed a finite element model (FEM) by using Abaqus software to simulate the chip formation in cutting AZ31 magnesium alloy under dry condition. The study revealed that serrated chips were formed in dry condition. Chip segmentation increased proportionally with cutting speed as generated heat concentrated in a narrow zone, promoting the formation of an adiabatic shear band.

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“…Li et al [39] utilized Abaqus finite element software to create a simulation model and investigated serrated chip formation at different tool rake angles and cutting speeds, offering theoretical insights for Ti-6Al-4V cutting. Additionally, they studied stress and strain characteristics within adiabatic shear bands, concluding that serrated chip formation in titanium alloy machining leads to significant changes in shear strain and stress within adiabatic shear bands, particularly when rake angles range from 0 • to 5 • .…”

Section: Introductionmentioning

confidence: 99%

Influence of Technological Parameters on Chip Formation and Chip Control in Precision Hard Turning of Ti-6Al-4V

Abdelnasser,

El-Sanabary,

Nassef

et al. 2023

Micromachines

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This article presents the results of an experimental investigation into the effect of process parameters in the precision hard turning of Ti-6Al-4V on chip morphology at both macro and micro levels. It also reports on the control of chip generation to improve chip evacuation and breakability at the macro level by varying the process parameters, namely, feed rate, cutting speed and depth of cut during turning tests. A scanning electron microscope (SEM) was used to examine the chips produced for a better understanding of chip curling mechanisms at the micro level. Surface roughness of the machined specimens was measured to assess the effect of chip evacuation on obtainable surface quality. From the results, it was found that the interaction of process parameters has a significant effect on the control of chip formation. In particular, the interaction of higher cutting speeds and greater depths of cut produced chip entanglement with the workpiece for all values of feed rates. Using relatively higher feed rates with a low depth of cut showed good results for chip breaking when machining at higher cutting speeds. Different chip curling mechanisms were identified from the SEM results. Chip side-curl formation showed different segmentation patterns with an approximately uniform chip thickness along the chip width, while chip up-curl occurred due to variations in chip thickness. Finally, it was found that the tangling of the chip with the workpiece has a significant effect on the final surface quality.

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Effect of cutting parameters and tool rake angle on the chip formation and adiabatic shear characteristics in machining Ti-6Al-4V titanium alloy

Cited by 25 publications

References 27 publications

Study on Characteristics for Reaming Titanium Alloy Ti6Al4V with Two Kinds of Cemented-Carbide Groove Reamers

Study on Characteristics for Reaming Titanium Alloy Ti6Al4V with Two Kinds of Cemented-Carbide Groove Reamers

Finite Element Modelling of Serrated Chip Formation During Turning AZ31 Magnesium Alloy

Influence of Technological Parameters on Chip Formation and Chip Control in Precision Hard Turning of Ti-6Al-4V

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