Experimental investigation on material removal rate and chip forms during turning T6 tempered Al 7075 alloy

Das, Diptikanta; Sahoo, Barada Prasanna; Bansal, Saras; Mishra, Prachi

doi:10.1016/j.matpr.2017.11.566

Cited by 13 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1. Introduction 7xxx series with chromium alloying elements are replacing many structural parts due to the stress corrosion cracking tendency of other series aluminum alloys [1]. AA7075 (Al-Zn-Mg-Cu) is used in aircraft, aerospace, automobile, and transportation industries to make durable and lightweight structural components [2,3].…”

Section: Graphical Abstractmentioning

confidence: 99%

Comparative Analysis in Drilling Performance of AA7075 in Different Temper Conditions

Yarar

et al. 2021

Preprint

View full text Add to dashboard Cite

AA7075 is one of the most suitable materials for aerospace, aircraft, and defense applications with its high yield strength and low-density. In many other modern machining methods, conventional drilling remains the most extensive material removal process in industrial components. The main objective of this study is examining the machinability and surface quality conditions of the AA7075 material with different temper conditions. For this purpose, various temper treatments are implemented to evaluate the impact of microstructural properties on tool wear and surface quality of the drilled holes. The drilling operations have been done on O, F, T4, T6, and T7 temper conditions. Process parameters were three different spindle speeds (715, 1520, and 3030 rev/min) and three feed rates (0.1, 0.2, and 0.3 mm/rev) with HSS-G high-performance ground standard twist drill bit. The present work deals with the effects of temper conditions on thrust force, drilling temperature, tool wear, surface integrity, and chip morphology. Drilling performance is related to the intrinsic microstructural properties of temper conditions. Response surface methodology was used in the evaluation of experiment results. The optimization results showed that while thrust force and torque are not significantly affected by change in spindle speed, they are sensitive to increase in feed rate. Heat-generation on the drill bit is the lowest at low levels of both the feed rate and spindle speed parameters. Among different temper conditions, the AA7075-T6 condition sample is processed with continuous chip formation and resulted in the best hole surface quality. The 3D finite element modelling of the drilling process was carried out, and the drilling performance of AA7075-T6 was evaluated in terms of thrust force, heat generation, and chip formation.

show abstract

Section: Graphical Abstractmentioning

confidence: 99%

Comparative Analysis in Drilling Performance of AA7075 in Different Temper Conditions

Yarar

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…However, the spindle speed showed the least influence on the forces. Das et al (2018); investigated the effect of parameters such as speed, and depth of a cut on material removal rate in turning T6 tempered Al 7075 alloy with uncoated tungsten carbide inserts in a dry environment. The results indicated that spindle speed was the most significant parameter taken after the feed, and the influence of depth of cut was insignificant.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and Optimization of Machining Parameters in Turning of Aluminum Alloy 075-T651

Srivastava

Verma

Niranjan

et al. 2021

Production Engineering Archives

View full text Add to dashboard Cite

Aluminum alloy 7075-T651 is a widely used material in the aviation, marine, and automobile sectors. The wide application marks the importance of this material’s research in the manufacturing field. This research focuses on optimizing input process parameters of the turning process in the machining of Aluminum 7075-T651 with a tungsten carbide insert. The input machining parameters are cutting speed, feed, and depth of cut for the output response parameters cutting force, feed force, radial force, material removal, and surface roughness of the workpiece. For optimization of process parameters, the Taguchi method, with standard L9 orthogonal array, is used. ANOVA is applied to obtain signifi-cant factors and optimal combinations of process parameters.

show abstract

“…The serration formation on the removed chips may be able to attribute to the repeated catastrophic shearing instability due to the thermo-plasticity influence. The resulting instability in the shear zone also is an identifier for the vibration level of the operation [14]. Furthermore, the removed bur shape is a crucial outcome to show the magnitude of the vibration amplitude, microwaves, instabilities of multiple shear bands, and chatters, which degrade the surface quality [15].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the effect of Chip Slenderness Ratio and Cutting Tool Approach Angle on Vibration Amplitudes and Chip Morphology

Demir

Adiyaman

2019

Celal Bayar Üniversitesi Fen Bilimleri Dergisi

View full text Add to dashboard Cite

Machinability, especially turning process, is a significant manufacturing method, but the vibrations, come about the real mechanism of the operation, make difficulties. Unnumbered parameters influence the process outcomes such as machined face raggedness, chip morphology, and vibration amplitudes. In the present research, the effect of tool approaching inclination and chip slenderness ratio (CSR) on the deflection amplitudes, StDev in vibrations, and chip morphology were investigated. For this purpose, 15 o , 30 o , and 45 o approaching inclinations, 1, 3, 5, 10, and 15 CSR also depending on CSR values 0,1 mm/rev, 0,15 mm/rev, 0,45 mm/rev, and 0,5 mm/rev feed rates, 0,5 mm, 1 mm, 1,5 mm, and 2,25 mm cutting depths were chosen. It was investigated that according to both vibration amplitudes and chip morphology criterion, the most appropriate cutting tool approach angle was 30 o , and CSR values were 10 and 15. Besides, as the cutter approaching inclination progress, the deflection magnitudes in the X (removing deepness) direction were deteriorated, but at small CSR values, they were increased. The optimum feed rates were to be 0,1 mm/rev and 0,15 mm/rev, but the influence of the cutting depth showed differences depending on the values of the selected feed rates. Surface quality was improved at 30 o and 45 o approach angles, 0,1mm/rev and 0,15 mm/rev proceeding speeds and10 and 15 CSR valences. The chips in lamellas form, without sharp deformation breaks and serration generations were perceived at 30 o approaching inclination, 0,1 mm/rev and 0,15 mm/rev proceeding speeds also at 10 and 15 CSR values.

show abstract

Experimental investigation on material removal rate and chip forms during turning T6 tempered Al 7075 alloy

Cited by 13 publications

References 5 publications

Comparative Analysis in Drilling Performance of AA7075 in Different Temper Conditions

Comparative Analysis in Drilling Performance of AA7075 in Different Temper Conditions

Experimental Investigation and Optimization of Machining Parameters in Turning of Aluminum Alloy 075-T651

Investigation of the effect of Chip Slenderness Ratio and Cutting Tool Approach Angle on Vibration Amplitudes and Chip Morphology

Contact Info

Product

Resources

About