This paper investigates the dimensional accuracy and tool wear rate (TWR) in micro electro discharge (micro-ED) milling of stainless steel (S304) workpiece and tungsten as the tool electrode with control parameter; voltage and feed rate. Dimensional accuracy is represented by the difference of micro-channel width between the two ends of the channel

This study examines the thinking styles and its implications on the development of man’s perception. Applying the textual analysis method, the study analyzes various styles of thinking portrayed in the Qur’an and its impacts on the human intellect and behaviour. The thinking styles of the Qur’an are very effective in bringing the much needed

Electro discharge machining (EDM) is a non-conventional process used in industry for machining various intricate shapes. This process is known for machining hard and brittle conductive metallic materials as it can melt any electrically conductive material regardless of hardness at about 8000-12000 °C. History shows that, in 1770, an English scient

KNOWLEDGE and CIVILISATION in ISLAM KNOWLEDGE AND CIVILIZATION IN ISLAM iii KNOWLEDGE AND CIVILISATION IN ISLAM Edited by KABUYE UTHMAN SULAIMAN International Institute of Islamic Thought International Islamic University Malaysia East and South East Asia Malaysia iv First Edition, 2017 © The International Institute of Islamic Thought (East and Sou

This paper presents the analysis and modelling of material removal rate (MRR) and surface roughness (Ra) by micro wire electro discharge grinding (micro-WEDG) with control parameter of gap voltage, feed rate, and spindle speed. The data were analyzed and empirical models are developed. The optimized values of MRR and Ra are 0.051 mm3/min and 0.25 Î

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Background: Powder mixed dielectric fluid is being used recently to cut difficult to cut ceramic materials such as aluminium oxide (Al2O3) and zirconium oxide (ZrO2) where process development and optimization are found to be critical issues. Object: This paper investigates and compares the average surface roughness (Ra) in micro electrical discharg

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The concept of wasatiyya (moderation), as a principle, has been recognized as the hallmark of Muslim society. But due to various reasons it has not sufficiently been in practice among Muslims at individual and collective levels. We observe trends of reactions, extremism, fanaticism and emotionalism among Muslim societies. Hence, some concentrated e

Alumina is a non-conductive ceramic material which can meet the high demand of industrial applications due to its excellent physical and chemical properties. However, machining of alumina is not possible by using the conventional machining methods due to its inherent brittleness. Recently, electro-discharge machining has been used for structuring a