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Sigit Yoewono Martowibowo
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Mesin

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Studi Eksperimental Hubungan Parameter Proses Pemesinan Wire EDM dengan Kekerasan Permukaan untuk Material AISI 1148 Martowibowo, Sigit Yoewono; Pinandito, Satrio
Mesin Vol 15, No 2 (2000)
Publisher : Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.198 KB)

Abstract

Technology development advances in recent years produce materials having higher strength, complicated shape and high accuracy. These have placed demands on the new technology in machining processes. Non-conventional machining processes are providing effective solutions to the problem mentioned above.Wire EDM machining is one of some non-conventional machining processes which is using wire as tool. The limitation of this technique as also happened with other non-conventional machining processes is a lower rate of material removal comparing to the conventional processes.This study was conducted to obtain data in order to optimize machining condition of medium carbon steel using for die material.
OPTIMISASI PROSES PEMESINAN EDM WIRE CUT UNTUK MODUS GERAK SIRKULAR MENGGUNAKAN ALGORITMA GENETIK Martowibowo, Sigit Yoewono; Adriansyah, Adriansyah
Mesin Vol 22, No 2 (2007)
Publisher : Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (847.607 KB)

Abstract

Electro Discharge Machining Wire Cut (EDM Wire Cut) is one of non-conventional machining process which is used by many manufacturer industries. Technology development demands this process can produce high quality product with good productivity. To fulfill this demand, optimization of machining processes that involves several variables can be done. When doing the optimization of machining condition, an algorithm using mathematical model is needed to calculate the optimum values of process variables. There are many optimization techniques and methods which can be chosen, one of them is Genetic Algorithm. In this research work, an implementation of Genetic Algorithm in machining process optimization is presented. As the optimization parameters, feed rate and surface roughness selected. Based on the above parameters and considering the capability of the existing EDM Wire Cut, five input parameters are determined with right combination, namely no load voltage, capacitor, on time, off time and servo voltage. The output has been compared to other optimization method and it appears that the Genetic Algorithm shows promising results and thus may be proposed as an alternative tool in machining process optimization.
PEMBUATAN PERANGKAT LUNAK CAM UNTUK MESIN CNC FREIS 3 SUMBU PADA AutoCAD Martowibowo, Sigit Yoewono; Daai, Wildan Rojuli
Mesin Vol 19, No 1 (2004)
Publisher : Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (881.806 KB)

Abstract

This study is aimed to produce CAM software run under AutoCAD 2000 or latest version using Visual Basic for Application (VBA) program. Machining processes are carried out using endmill cutter at X-Y plane. Input of this software is 3-D drawings of the model. The output of this software are G-Code of cutting tool path. The software also provides fasilities to approach spline and ellips with connected lines but still considering geometric tolerances of line profile.
Studi Eksperimental Hubungan Parameter Proses Pemesinan Wire EDM dengan Kekerasan Permukaan untuk Material AISI 1148 Sigit Yoewono Martowibowo; Satrio Pinandito
Mesin Vol. 15 No. 2 (2000)
Publisher : Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Technology development advances in recent years produce materials having higher strength, complicated shape and high accuracy. These have placed demands on the new technology in machining processes. Non-conventional machining processes are providing effective solutions to the problem mentioned above.Wire EDM machining is one of some non-conventional machining processes which is using wire as tool. The limitation of this technique as also happened with other non-conventional machining processes is a lower rate of material removal comparing to the conventional processes.This study was conducted to obtain data in order to optimize machining condition of medium carbon steel using for die material.
PEMBUATAN PERANGKAT LUNAK CAM UNTUK MESIN CNC FREIS 3 SUMBU PADA AutoCAD Sigit Yoewono Martowibowo; Wildan Rojuli Daa'i
Mesin Vol. 19 No. 1 (2004)
Publisher : Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study is aimed to produce CAM software run under AutoCAD 2000 or latest version using Visual Basic for Application (VBA) program. Machining processes are carried out using endmill cutter at X-Y plane. Input of this software is 3-D drawings of the model. The output of this software are G-Code of cutting tool path. The software also provides fasilities to approach spline and ellips with connected lines but still considering geometric tolerances of line profile.
OPTIMISASI PROSES PEMESINAN EDM WIRE CUT UNTUK MODUS GERAK SIRKULAR MENGGUNAKAN ALGORITMA GENETIK Sigit Yoewono Martowibowo; Adriansyah Adriansyah
Mesin Vol. 22 No. 2 (2007)
Publisher : Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Electro Discharge Machining Wire Cut (EDM Wire Cut) is one of non-conventional machining process which is used by many manufacturer industries. Technology development demands this process can produce high quality product with good productivity. To fulfill this demand, optimization of machining processes that involves several variables can be done. When doing the optimization of machining condition, an algorithm using mathematical model is needed to calculate the optimum values of process variables. There are many optimization techniques and methods which can be chosen, one of them is Genetic Algorithm. In this research work, an implementation of Genetic Algorithm in machining process optimization is presented. As the optimization parameters, feed rate and surface roughness selected. Based on the above parameters and considering the capability of the existing EDM Wire Cut, five input parameters are determined with right combination, namely no load voltage, capacitor, on time, off time and servo voltage. The output has been compared to other optimization method and it appears that the Genetic Algorithm shows promising results and thus may be proposed as an alternative tool in machining process optimization.
Co-Authors Adriansyah Adriansyah Daai, Wildan Rojuli Ervin Dwi Saputro Fredinan Yulianda Hendi Riyanto, Hendi Pinandito, Satrio Putra, William Maha Satrio Pinandito Tabah, Gagan Ganjar Wildan Rojuli Daa'i