On the precipitation behaviour of 7055 aluminium alloy during high-speed cutting

Zhang, Ping; Wang, Youqiang; Wang, Qing

doi:10.1080/02670836.2018.1471378

Cited by 3 publications

(2 citation statements)

References 27 publications

(31 reference statements)

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“…Zinovieva et al [7] investigate the combined effect of grain structure and loading conditions on the evolution of the stress-strain state in additively manufactured specimens. Zhang et al [8] monitor the changes in the microstructure of 7055 aluminium alloy induced by high speed cutting under various treatment processes. TEM allows showing particles reduction and pinning.…”

Section: Materials Characterisation and Modelling On The Small Scalementioning

confidence: 99%

Materials characterisation and modelling on the small scale

Dimitrakopulos

Walther

Pinna

et al. 2018

Materials Science and Technology

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Section: Materials Characterisation and Modelling On The Small Scalementioning

confidence: 99%

Materials characterisation and modelling on the small scale

Dimitrakopulos

Walther

Pinna

et al. 2018

Materials Science and Technology

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“…Ding et al [12] conducted cutting experiments on polycrystalline Al 6061 T6 and analyzed the changes in the cutting forces and machined surface finish; they found that the grain size and grain orientation have important effects on machinability. Zhang et al [13,14] took 7055 aluminum alloy under different heat treatments as the research object, and analyzed its microstructure and crystal orientation before and after cutting via transmission electron microscopy (TEM) and electron backscatter diffraction (EBSD) technology. Pang et al [15] investigated the machined surface properties of TC4 titanium alloy, simulated the surface texture with the help of VPSC software, obtained its pole figure and orientation distribution function (ODF) map, and further analyzed the typical shear texture of the surface.…”

Section: Introductionmentioning

confidence: 99%

Study on the surface integrity of 7050 aluminum alloy with different crystal orientations during high-speed machining

Zong

et al. 2022

Int J Adv Manuf Technol

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This paper investigates the effect of crystal orientations and machining parameters on the surface integrity of 7050 aluminum alloy in high-speed machining. Three groups of pre-compression deformations (10%, 15%, and 20%) are performed on the aluminum alloy to fabricate specimens with different crystal orientations. A single-factor dry cutting experiment was designed, and the surface roughness, surface morphology and defects, work hardening, and X-ray diffraction (XRD) were tested. The results show that the 15% pre-deformed 7050 aluminum alloy specimen had lower surface roughness and the best surface quality under the same cutting parameters. The surface roughness of 7050 aluminum alloy with different crystal orientations tended to first increase and then decrease with the increase of the cutting speed, and the surface roughness was positively correlated with the cutting depth and feed rate. Under different cutting parameters, the machined surfaces of 7050 aluminum alloy specimens with different crystal orientations exhibited different degrees of plowings, apophysis, sticky chips and pits. Moreover, the degree of work hardening of the 15% pre-deformed 7050 aluminum alloy specimen was small, while that of the 20% predeformed specimen was more serious. XRD analysis demonstrated that the diffraction peak width of the 10% pre-deformed 7050 aluminum alloy specimen slightly increased with the increase of the cutting depth. Moreover, the (111) and ( 200) diffraction peak intensities of the 15% pre-deformed 7050 aluminum alloy specimen increased with the increase of the cutting speed, and there was no obvious Al 2CuMg phase on the machined surface of the 20% pre-deformed specimen.

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Study on the Surface Integrity of 7050 Aluminum Alloy with Different Crystal Orientations During High-Speed Machining

Zong²,

Ni³

et al. 2022

Preprint

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This paper investigates the effect of crystal orientations and machining parameters on the surface integrity of 7050 aluminum alloy in high-speed machining. Three groups of pre-compression deformations (10%, 15%, and 20%) are performed on the aluminum alloy to fabricate specimens with different crystal orientations. A single-factor dry cutting experiment was designed, and the surface roughness, surface morphology and defects, work hardening, and X-ray diffraction (XRD) were tested. The results show that the 15% pre-deformed 7050 aluminum alloy specimen had lower surface roughness and the best surface quality under the same cutting parameters. The surface roughness of 7050 aluminum alloy with different crystal orientations tended to first increase and then decrease with the increase of the cutting speed, and the surface roughness was positively correlated with the cutting depth and feed rate. Under different cutting parameters, the machined surfaces of 7050 aluminum alloy specimens with different crystal orientations exhibited different degrees of plowings, apophysis, sticky chips and pits. Moreover, the degree of work hardening of the 15% pre-deformed 7050 aluminum alloy specimen was small, while that of the 20% pre-deformed specimen was more serious. XRD analysis demonstrated that the diffraction peak width of the 10% pre-deformed 7050 aluminum alloy specimen slightly increased with the increase of the cutting depth. Moreover, the (111) and (200) diffraction peak intensities of the 15% pre-deformed 7050 aluminum alloy specimen increased with the increase of the cutting speed, and there was no obvious Al 2 CuMg phase on the machined surface of the 20% pre-deformed specimen.

show abstract

On the precipitation behaviour of 7055 aluminium alloy during high-speed cutting

Cited by 3 publications

References 27 publications

Materials characterisation and modelling on the small scale

Materials characterisation and modelling on the small scale

Study on the surface integrity of 7050 aluminum alloy with different crystal orientations during high-speed machining

Study on the Surface Integrity of 7050 Aluminum Alloy with Different Crystal Orientations During High-Speed Machining

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