Mathematical Modelling of Surface Roughness for Evaluating the Effects of Cutting Parameters in Drilling Process

Zhujani, Fatlume; Qehaja, Nexhat; Abdullahu, Fitore; Bruqi, Mirlind

doi:10.2507/27th.daaam.proceedings.029

Cited by 2 publications

(2 citation statements)

References 6 publications

(8 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surface roughness is mainly the result of various controllable or uncontrollable process parameters, and it is difficult to achieve and monitor them. A considerable number of studies have examined the effects of cutting speed, feed, depth of cut, nose radius and other factors on the surface roughness [12].…”

Section: Introductionmentioning

confidence: 99%

Cutting Environment Impact on the Aluminium Alloy Machining

Buranská

Buranský

Kritikos

et al. 2019

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

View full text Add to dashboard Cite

The paper is focused on the experiment where the effects of the cutting environment and feed of drilling on the bores roughness and cylindricity were evaluated. Dry drilling of aluminium alloys (without using cutting fluids) is an environmentally friendly machining process but also an extremely difficult task, which is due to the tendency of aluminium to adhere to the drills made of conventional materials such as high-speed steel; and therefore three cutting environments (namely two different emulsions and compressed air) were used in the experiment. The article demonstrates multicriterial optimization of input factors (cutting environment, feed) for two defined target functions: roughness and cylindricity). The measured values were subjected to mathematico–statistical Analysis of Variance (ANOVA). ANOVA was used for examining the effects of machining parameters and their contribution to the surface roughness and bores cylindricity. The optimal cutting parameters were evaluated for “Smaller-the-Better” quality characteristics of both output responses, as can be seen in our article published previously. Based on the ANOVA, we determined that cutting environment exhibited higher percentage of contribution on bores quality than feed of machining. The results show 77.37 % impact of cutting environment and 8.13 % impact of feed on quality of machined bores.

show abstract

Section: Introductionmentioning

confidence: 99%

Cutting Environment Impact on the Aluminium Alloy Machining

Buranská

Buranský

Kritikos

et al. 2019

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

View full text Add to dashboard Cite

show abstract

“…Surface roughness is mainly the result of various controllable or uncontrollable process parameters, and it is more difficult to achieve and monitor than physical dimensions. A considerable number of studies have examined the effects of cutting speed, feed, depth of cut, nose radius and other factors on the surface roughness [10].…”

Section: Introductionmentioning

confidence: 99%

Cutting Environment Impact on the Aluminium Alloy Machining (DFA)

Buranská¹,

Buranský²

2018

Proceedings of the 29th International DAAAM Symposium 2018

View full text Add to dashboard Cite

During the drilling process of the aluminium alloy, certain specifications are different from milling and turning. The major differences: 1) a variable cutting speed along the main cutting edge, 2) more difficult chip evacuation, 3) poor access of liquids into the cutting area. One of the problems is to select a suitable cutting environment for drilling the aluminium alloy to ensure the required quality of the bore (mainly roughness and cylindricality). Dry drilling of aluminium alloys (without using cutting fluids) is an environmentally friendly machining process but also an extremely difficult task due to the tendency of aluminium to adhere to the drills made from conventional materials such as high-speed steel, therefore three cutting environments (namely two different emulsions and compressed air) were used this experiment. The paper is focused on the experiment where the effects of the cutting environment and feed of machining on the bores roughness and cylindricity are evaluated. The article demonstrates multicriterial optimization of input factors (cutting environment, feed) for two defined target functions roughness and cylindricity). The measured values were subjected to mathematical statistical analysis Desirability Function Analysis (DFA). Based on the experiment and studies on this issue combinations of input factors have been identified that have achieved minimum target function values. The results show that the most appropriate combination of the following input factors has been demonstrated: compressed air and feed setting at the lowest level, ie 0.2 mm.

show abstract

Mathematical Modelling of Surface Roughness for Evaluating the Effects of Cutting Parameters in Drilling Process

Cited by 2 publications

References 6 publications

Cutting Environment Impact on the Aluminium Alloy Machining

Cutting Environment Impact on the Aluminium Alloy Machining

Cutting Environment Impact on the Aluminium Alloy Machining (DFA)

Contact Info

Product

Resources

About