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Moein Taheri

Moein Taheri

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0001-6583-3925
Education: PhD.
ScopusId: 25640173900
Faculty: Engineering
Address: Arak University
Phone: 086-32625724

Research

Title
Investigation of Current, Duration and Pulse Voltage Factors in EDM Process of Carbon Nanotubes Based on Nanostructure Analysis Using Atomic Force Microscope
Type
Presentation
Keywords
EDM process, AFM, Nanomaterials, Sensitivity Analysis, Sobol method
Year
2021
Researchers Moein Taheri ، Zohreh Moradi

Abstract

Abstract: With the advent of carbon nanotubes, dramatic advances have been made in nanomaterials. Carbon nanotubes with a variety of physical and chemical properties have led to a wide range of new products. Therefore, the use of these highly sensitive materials in the industry is impossible with traditional machining methods and they are used and produced in the industry with non-traditional and modern methods such as EDM. In this method, electrical discharge is done transiently between the electrode (tool) and the work piece, and in each discharge operation, a small part of the metal is removed. The speed of machining in this method depends on the discharge waveform and the time interval between them. In this process, the three main factors of pulse current, pulse duration and pulse voltage are the most significant influencing factors that have been investigated by a powerful sensitivity analysis assistant on the surface roughness output factor. Roughness of surface, which is the main factor for the production and structure of nanoparticles, has been investigated by Sobol sensitivity analysis. Pulse voltage with 46% and pulse current with 33% are crucial factors in the surface roughness of carbon nanotubes in the EDM process.