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All Journal Jurnal Elemen V-MAC (Virtual of Mechanical Engineering Article)
Hari Boedi Wahjono
Politeknik Perkeretaapian Indonesia
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Pengaruh Parameter Pemotongan Dan Nose Radius Pahat Insert W-Style Pada Pembubutan Baja S45c Henry Widya Prasetya; Hari Boedi Wahjono
Virtual of Mechanical Engineering Article Vol 5 No 2 (2020): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v5i2.1054

Abstract

In the manufacturing industry, the cutting process, especially lathes, has developed rapidly, one of which is in the rail transportation industry sector. The purpose of this study was to determine the effect of cutting parameters and the nose radius of the W-style insert tool on the level of surface roughness in the turning process of S45C steel. This research uses experimental research methods. In this study, using a variation of cutting parameters and nose radius. Variations in cutting parameters using cutting speeds of 195 Rpm, 300 Rpm and 440 Rpm. Variation of the depth of cut 1 mm and 2 mm. Variation of feed speed 0.1 mm / rev, 0.2 mm / rev and 0.3 mm / rev. While the variation of the nose tool radius for inserting W-style is 0.4 mm and 0.8 mm. After turning the surface roughness test was carried out using the Surface Roughness Tester. The results of this study indicate that the increasing cutting speed and nose radius of the insert tool, decreasing feeding velocity and cutting depth results in good surface quality. Keyword: W-series insert tool, nose radius, surface roughness.
PENGARUH PERLAKUAN MEDIA PENDINGIN NaCl TERHADAP PELAPISAN PERMUKAAN SURFACE TREATMENT PADA REL KERETA API UIC R54 Hari Boedi Wahjono; Rafli Rianzah Putra; Willy Artha Wirawan; Fadli Rozaq; Rezki Putra
ELEMEN : JURNAL TEKNIK MESIN Vol. 9 No. 2 (2022)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v9i2.213

Abstract

This study aims to understand and determine how effective the addition of NaCl in the quenching surface treatment media for the UIC R54 railroad. This study applies a method that refers to the theory of surface treatment. First, the surface treatment process is carried out on the surface of the rail specimen. The cooling medium used in the surface treatment process is a mixture of NaCl of 200-800gr NaCl at intervals of 200gr with 1000ml of water. Furthermore, observations of the microstructure and measurement of the hardness value on the surface of the rail specimen were carried out. The average hardness value for raw material specimens is 283.52 BHN. The highest hardness value in specimens that have been surface treated is 346.36 BHN in the treatment of adding 60% NaCl to the quenching medium. In raw material specimens, the phase formed is dominated by ferrite and pearlite. Meanwhile, the phase formed after the surface treatment process is martensite. From these results it can be concluded that a mixture of 60% NaCl with water used as a cooling medium is effective in increasing the hardness value of the rail.
Co-Authors Fadli Rozaq Henry Widya Prasetya Rafli Rianzah Putra Rezki Putra Wirawan, Willy Artha