Effect of Drilling Parameters on Thrust Force and Torque During Drilling of Aluminium 6061 Alloy - Based on Taguchi Design of Experiments

Sreenivasulu, Reddy; Rao, Chalamalasetti Srinivasa

doi:10.3329/jme.v46i1.32522

Cited by 17 publications

(7 citation statements)

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“…Damage free holes ought to be drilled in the parts to reach precision and high strength (Mazumder et al 2016). Precise selection of drilling conditions have been a major challenge and great deal of research has managed to study the effects of parameters associated with drilling operation on the properties of drilled composites (Sreenivasulu and Rao 2016).…”

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confidence: 99%

Drilling Behavior of Flax/Poly(Lactic Acid) Bio-Composite Laminates: An Experimental Investigation

Lotfi

Dao

2018

Journal of Natural Fibers

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This paper aims to investigate the effects of machining parameters such as spindle speed, feed rate and drill diameter on machinability of flax/poly(lactic acid) bio-composites, to analyze the relations among cutting forces, drillinginduced damages and crack propagation of the drilled samples. In particular, a set of drilling experiments were conducted using different drilling conditions and a new low-cost measurement set-up was developed to measure the cutting force during the drilling operation. In addition, the analysis of variance (ANOVA) was applied to identify the significance of each individual cutting parameter. The experimental results indicate the relation between the thrust force and the machinability parameters of flax fiber reinforced bio-composite.The increase in spindle speed reduces thrust force and delamination size of the drilled holes, whereas an increase in feed and drill diameter leads to a considerable increase in both thrust force and delamination factor. The effect of spindle speed on peripheral damage was not significant for the drills tested, though the feed rate was found to play the key role on the delamination damage area. The best hole quality was achieved with the samples drilled at spindle speed and feed rate of 3000 rpm and 0.11 mm/rev, respectively.

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confidence: 99%

Drilling Behavior of Flax/Poly(Lactic Acid) Bio-Composite Laminates: An Experimental Investigation

Lotfi

Dao

2018

Journal of Natural Fibers

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“…Not but not least, lastly discussed on the works done by Sreenivasulu etal [134][135][136][137][138][139][140][141][142]. They worked more on study of drilling burr formations in different ways of techniques using lot of experimentation at different levels carried out on different aluminium alloys and compared these results with developed analytical and simulation models in Deform-3D.…”

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confidence: 99%

Review on Investigations Carried out on Burr Formation in Drilling During 1975 To 2020

Sreenivasulu¹,

SrinivasaRao

2019

Technological Engineering

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Burr formation during machining process is a vital role in the assembly lines, even though it is a non value added process but also care should be taken while machining due to non avoiding output generated at the end of material removal process. At present almost all manufacturing sectors faces lot of problems due to these issues and invest more money towards deburring still advanced manufacturing methods available. So, complete burr removal is not possible and only thing is reducing utmost by applying better optimizing techniques, to develop good mechanization methods, selecting optimum process parameters and their conditions. The aim this paper deals about research methods implemented by earlier authors on burr formation especially in drilling. The reason why the present authors selected the drilling is number of automotive and aircraft engineers struggling during structural building works because of these burrs wherever precise measurement needed. In this connection, the authors concentrate their study on previous researcher works related to investigations on experimentation, developing new theoretical mechanisms to minimize burrs, adapt a new technologies available to modify drill bit geometries such that improvement in the minimization of burrs. Finally found that research contributions by changing their drill bit geometry and cutting process parameters have been focused on utilizing the methodologies, changing time to time. In analyzing the performance characteristics with that of input process parameters, several mathematical and empirical models were developed by many researchers so far in their works. Efforts have been made in the direction of optimization of process parameters in drilling for minimizing burr size.

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“…In a rock drilling, the torque and penetration rate of the drill bit could largely influence by operating thrust and speed [23]. Sreenivasulu and Rao [26] studied the significant effect of drill bit diameter, penetration rate, and spindle speed on the bit force and torque while the aluminum alloy is drilling. Analysis of data revealed that bit speed and its diameter impacted both bit force and torque significantly.…”

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Experimental investigation on potential use of drilling parameters to quantify rock strength

Lakshminarayana¹,

Tripathi²,

Pal

2021

Geo-Engineering

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The uniaxial compressive strength (UCS) represents the strength of the rock. It frequently requires during the introductory phase of mining projects such as tunneling, rock excavation, blast hole designs, etc. Usually, the determination of UCS of rocks is carrying out in a concerned laboratory. The main drawback of determining the UCS in a laboratory requires at least five core samples of high-grade quality. Many problems and limitations are associated with removing the core, and also preparing the test specimen for UCS is tedious, time-consuming, and expensive. Therefore an attempt is made to develop an efficient indirect method to estimate the UCS of rocks without using the core samples. In this experimental investigation, the drilling response, such as thrust, is gathered by drill tool dynamometer considering the different drill operating parameters. The prediction model is developed with a regression technique using the measured thrust and calculated torque. The prediction capacity and validation of the model are carried out using the standard procedure. The experimental results show that the model could explain the variance in UCS up to 93.60%. RMSE and MAPE values in terms of percentage are 3.49% and 11.27%, respectively. Besides, the model's validation is checked for sandstone and limestone having the UCS 28 MPa and 35 MPa, respectively, and yielded the best prediction results with an error of 8.51% and 8.01% suggesting that the developed model could predict the UCS of sedimentary rock types within acceptable error limit, and reasonably. The correlation of UCS of rocks and drilling specific energy is also tested and found that linear relationship between them with an R2 value of 92.10%.

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Effect of Drilling Parameters on Thrust Force and Torque During Drilling of Aluminium 6061 Alloy - Based on Taguchi Design of Experiments

Cited by 17 publications

References 0 publications

Drilling Behavior of Flax/Poly(Lactic Acid) Bio-Composite Laminates: An Experimental Investigation

Drilling Behavior of Flax/Poly(Lactic Acid) Bio-Composite Laminates: An Experimental Investigation

Review on Investigations Carried out on Burr Formation in Drilling During 1975 To 2020

Experimental investigation on potential use of drilling parameters to quantify rock strength

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