Results 51 to 60 of about 3,249 (172)

Effects of selective laser melting parameters on relative density of AlSi10Mg [PDF]

open access: yes, 2017
Selective Laser Melting (SLM) is an advance Additive Manufacturing (AM) technique in which a component is manufacturing in a layer by layer manner by melting the top surface of a powder bed with a high intensity laser according to sliced 3D CAD data ...
Ahmed, Aqeel   +3 more
core   +1 more source

Important elements for a framework in designing a mobile learning for English language listening and speaking skills [PDF]

open access: yes, 2020
Based on a literature search, there are a number of mobile learning frameworks mentioned in a previous study that less emphasis on the major element required for English language (listening and speaking skills) specifically for level 2 students ...
Maaruf, Siti Zuraida   +6 more
core   +1 more source

Intuitionistic Fuzzy TOPSIS‐Based Ranking Alternatives of Machining Performance of Ultrasonic‐Assisted Turning in Fabricated Magnesium Alloys for Sustainability

open access: yesJournal of Engineering, Volume 2026, Issue 1, 2026.
This study is aimed at optimizing the machining performance of magnesium alloys in ultrasonic‐assisted turning (UAT) by enhancing surface quality, tool life, and overall efficiency while minimizing tool wear and energy consumption. Magnesium alloys were fabricated using a bottom‐pouring stir casting technique with commercial pure magnesium (99.9 ...
S. P. Sundar Singh Sivam   +4 more
wiley   +1 more source

Hard Machining of Inconel 690 Using Minimum Quantity Nanoparticle‐Enriched Vegetable Oils: A Sustainable Approach

open access: yesEngineering Reports, Volume 7, Issue 10, October 2025.
This study explores alumina and silica nanoparticle‐enriched soybean oil for sustainable machining of Inconel 690. Alumina‐based nanofluid reduced surface roughness, force, temperature, and tool wear significantly. RSM‐GA optimization validated with 3.04% error highlights its eco‐efficiency, tool life enhancement, and potential for greener ...
Jasgurpreet Singh Chohan   +8 more
wiley   +1 more source

Design of pulse jet coolant delivery system for minimal quantity lubricant (IP MQL) operation [PDF]

open access: yes, 2012
Minimum quantity lubrication (MQL) machining is one of the promising solutions to the requirement for reducing cutting fluid consumption. The work here describes MQL machining in a range of lubricant consumption of 2.0-2.355ml/s, which is between 10 ...
Sapian, Nik Fazli
core  

Spline‐Based Framework for Microscopic Contact Zone Modeling in Lubricated Orthogonal Cutting

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 14, 30 July 2025.
ABSTRACT Accurately predicting the coefficient of friction between tool, chip, and workpiece during machining is essential for a reliable and cost‐effective process. In this context, current numerical methods are often based on homogenized approaches with friction models that use constant friction coefficients; thus, failing to capture local effects ...
Jaewook Lee   +9 more
wiley   +1 more source

Cooling and Lubrication Performance Analysis in Ultrasonic Vibration-Assisted Grinding by Heat Pipe Grinding Wheel

open access: yesLubricants
Due to low thermal conductivity and high specific strength, nickel-based superalloys are prone to service performance degradation caused by thermal damage during traditional high-efficiency grinding processes.
Shuai Wang   +6 more
doaj   +1 more source

Nanofluid Assistance in Machining Processes- Properties, Mechanisms and Applications: a Review

open access: yesJournal of Machine Engineering, 2021
A special group of hybrid assisted processes termed media-assisted processes which apply liquid media with special additives in the form of nanoparticles supplied to the cutting zone is overviewed.
Wit Grzesik
doaj   +1 more source

Comparative analysis of aluminium surface roughness in end-milling under dry and minimum quantity lubrication (MQL) conditions [PDF]

open access: yes, 2015
In this study an experimental investigation of effects of cutting parameters on surface roughness during end milling of aluminium 6061 under dry condition and minimum quantity lubrication (MQL) condition were carried out. Spindle speed (N), feed rate (f),
Ezugwu, Chinedu A.K.   +3 more
core   +1 more source

An Urban Stormwater Contaminant Signature: Defining Priority Contaminants for Urban Stormwater Research

open access: yesWater Environment Research, Volume 97, Issue 7, July 2025.
We identified a core suite of frequently detected contaminants in urban stormwater ponds using three complementary sampling methods. This urban stormwater contaminant signature (USCS) highlights cumulative exposures in pond ecosystems and supports more targeted monitoring of urban runoff.
G. Izma   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy