Experimental Evaluation of Machinability of Monel 400 Alloy During High Speed Micro Milling Using Various Tool Coatings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F24%3A10256612" target="_blank" >RIV/61989100:27230/24:10256612 - isvavai.cz</a>

Result on the web

<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:001310386300026" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:001310386300026</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12913/22998624/190624" target="_blank" >10.12913/22998624/190624</a>

Result language

angličtina

Original language name

Experimental Evaluation of Machinability of Monel 400 Alloy During High Speed Micro Milling Using Various Tool Coatings

Original language description

Quality of finished miniature products is characterized by surface roughness as well as burr formation after manufacturing processes. It gains more significance when it is gauged in terms of high precision and dimensional accuracy of final micro parts. The requirement of complex features in 3D micro parts also figures out its significance. Similarly, tool wear is an important indicator of production efficiency and quality related to finished parts. In the current research, the impact of key input parameters like depth of cut, feed rate, cutting speed and various tool coatings (TiAlN, TiSiN, nACo, including an uncoated tool) were statistically analyzed while carrying out micro-milling of Monel 400 super alloy. Surface roughness along with burr formation and tool wear were considered as response parameters due to their significant nature. Machining experiments were performed up to 80,000 rpm (high-speed range). Feed rate values were selected in comparison with cutting tool edge radius. The selected values of feed rate were taken into consideration at moderate and high-speed ranges while selecting the values equal to below and above the values of cutting-edge radius. Digital microscopy and scanning electron microscope (SEM) were utilized for analysis in addition to statistical techniques for response parameters. Methodology utilizes Taguchi&apos;s Experimental design. L16 orthogonal array was formulated to carry out micro milling experiments on Monel 400 specimen, having dimensions 20x30x40 mm. Contribution ratio (CR) of individual input parameter was calculated through Analysis of Variance (ANOVA). The outcome of experimental work indicated that feed rate was the most significant factor for surface roughness with CR 27.86%. It also became most significant factor for top burr width in both categories (Up-milling &amp; down-milling) with CR 56.56% and 56.60% respectively. Moreover, it was also most significant factor for top burr height in both categories (Up-milling and down-milling) with CR 23.84% and CR 28.47% respectively. Whereas in case of tool wear, the depth of cut and tool coatings were significant factors with CR 19.46% and 28.47% respectively. The findings in this work highlighted the importance of selection of suitable cutting conditions with appropriate tool coatings in micro-machining in enhancing productivity, quality and cost effect. In addition, the significance of burr height parameter, mainly unexplored till now, has also been underlined.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20301 - Mechanical engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Advances in Science and Technology Research Journal

ISSN

2080-4075

e-ISSN

2299-8624

Volume of the periodical

18

Issue of the periodical within the volume

5

Country of publishing house

PL - POLAND

Number of pages

20

Pages from-to

298-317

UT code for WoS article

001310386300026

EID of the result in the Scopus database

2-s2.0-85201573990