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All Journal Justek : Jurnal Sains Dan Teknologi Majalah Teknik Mesin
Abdul Munir Hidayat Syah Lubis
Universitas Muhammadiyah Surakarta
Automotive Engineering Computer Science & IT Control & Systems Engineering Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics

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Pengaruh Penambahan Nano Zinc Oxide dan Nano Graphite pada Aluminium Alloy 6061 melalui Proses Pengadukan GesekFriction Stir Processing terhadap Kekerasan Permukaan Bagas Kurniawan; Abdul Munir Hidayat Syah Lubis; Ngafwan Ngafwan; W. Setiyawan; Rosy Hilal Mahendra
Justek : Jurnal Sains dan Teknologi Vol 6, No 2 (2023): Juni
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v6i2.14494

Abstract

Abstract:  This study aims to determine whether there is an effect of adding nano zinc oxide and nano graphite to aluminum alloy 6061 through the Friction Stir Processing (FSP) process on surface hardness and wear. The type of research used was quantitative using several tools and materials, namely FSP samples, FSP Chisels, HEM (High Energy Milling) Machines, Sitting Drilling Machines, FSP Machines, Hardness Tester Machines, SEM (Scanning Electron Microscopy) and Optical Microscopes. The results of this study were an increase in hardness after Zn and C application.Abstrak: Penelitian ini bertujuan untuk mengetahui ada tidaknya pengaruh penambahan nano zinc oxide dan nano graphite pada aluminium alloy 6061 melalui proses Friction Stir Processing (FSP) terhadap kekerasan dan keausan permukaan. Jenis penelitian yang digunakan adalah kuantitatif dengan menggunakan beberapaalat dan bahan yaitu sampel FSP, Pahat FSP, Mesin HEM (High Energy Milling), Mesin Bor Duduk, Mesin FSP, Mesin Hardness Tester, SEM (Scanning Electron Microscopy) dan Mikroskop Optikal. Hasil dari penelitian ini adalah terjadi peningkatan kekerasan setelah pemberian Zn dan C.
Pengaruh Penambahan Partikel Hexagonal Boron Nitride Dan Carbon Pada AA 7075 Melalui Proses Friction Stir Processing Terhadap Kekerasan Permukaan Rosy Hilal Mahendra; Abdul Munir Hidayat Syah Lubis; Ngafwan Ngafwan; W. Setiyawan; B. Kurniawan
Justek : Jurnal Sains dan Teknologi Vol 6, No 2 (2023): Juni
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v6i2.14430

Abstract

Abstract:  reinforcement of AA 7075 material with nanoparticles may be developed. Therefore the authors wanted to conduct research on the effect of adding hexagonal boron nitride and coconut shell nano carbon particles to aluminum alloy 7075 through the friction stir processing (FSP) process on surface hardness and wear. Rpm to see a comparison of the speed of the mixture in aluminum, a mixture of hexagonal boron nitride particles and coconut shell nano carbon with the variants HBN25% : C75%, HBN50% : C50%, HBN75% : C25%. run the machine horizontally the process is repeated back and forth. The minimum hardness is 60.39 HRF 50% HBN material: C 50% rpm 2280, and the maximum hardness is 95.04 HRF 75% HBN material: C 25% rpm 2280. Pure 7075 aluminum is 90 HRF.Abstrak: Penguatan bahan AA 7075 dengan partikel nano melalui mungkin dapat dikembangkan. Oleh karena itu penulis ingin melakukan penelitian tentang pengaruh penambahan partikel hexagonal boron nitride dan nano carbon batok kelapa pada aluminium alloy 7075 melalui proses friction stir processing (fsp) terhadap kekerasan dan keausan permukaan.mesin fsp diatur speed dengan varian kecepatan 910, 1500, dan 2280 Rpm untuk melihat perbandingan dari speed terhadap campuran pada alumunium, campuran partikel hexagonal boron nitride dan nano Carbon batok kelapa dengan varian HBN25% : C75%, HBN50% : C50%, HBN75% : C25%. jalankan mesin secara horizontal proses diulang secara bolak balik.kekerasan minimum yaitu 60.39 HRF bahan HBN 50% : C 50% rpm 2280, dan kekerasan maksimum yaitu 95.04 HRF bahan HBN 75% : C 25% rpm2280. alumunium 7075 murni yaitu 90 HRF.
EFFECT OF ZIGZAG AND LINE PRINTING PATTERN ON TENSILE STRENGTH AND SURFACE ROUGHNESS OF FUSED DEPOSITION MODELING PRODUCT Sari, Ayu Perwita; Rhohman, Fatkur; Winata, Ayis Nuredi; Herlanto, Frendy Edo; Lubis, Abdul Munir Hidayat Syah; Anggono, Agus Dwi
Media Mesin: Majalah Teknik Mesin Vol. 25 No. 1 (2024)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v25i1.3284

Abstract

This research aims to test the results of 3D printing using Polylactic acid (PLA) filament on surface roughness and tensile strength. Experiments were carried out by adjusting the differences in printing fill density for the pattern used. Filling density uses variations of 60%, 80%, and 100%. The tensile test is used to measure the tensile mechanical properties of polymers (σ). The roughness test is obtained to determine the average surface roughness (Ra), root mean square roughness (Rq), and ten-point height (Rz). The test specimen uses the ASTM D638 type 4 standard model and size. The nozzle diameter is 0.4 mm, the temperature is 220 °C, and the heat bed temperature is 60 °C. The mechanical properties test results of the printing pattern showed that the zigzag pattern had the highest yield strength, maximum load, and elongation values, namely 0.97 N/mm2, 52.99 N, and 9.43%. Meanwhile, in the line pattern, the highest yield strength, maximum load, and elongation values were 1.51 N/mm2, 62.72 N, and 3.54% and the highest yield of the two patterns was in the highest printing pattern, namely 100%. It was concluded that the larger the printing pattern, the wider the filament will be, as a, result the level of surface roughness will also be higher.
Co-Authors Agus Dwi Anggono B. Kurniawan Bagas Kurniawan Fatkur Rhohman, Fatkur Herlanto, Frendy Edo Ngafwan Ngafwan Rosy Hilal Mahendra Rosy Hilal Mahendra Sari, Ayu Perwita W. Setiyawan Winata, Ayis Nuredi