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All Journal Jurnal Rekayasa Mesin AL-JAZARI JURNAL ILMIAH TEKNIK MESIN MENDIDIK: Jurnal Kajian Pendidikan dan Pengajaran JURNAL KAJIAN TEKNIK MESIN Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Motor Bakar : Jurnal Teknik Mesin
Yohanes Oscar Andrian
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Transportation Other

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Optimasi Parameter Mesin Laser Tube Cutting Terhadap Keakuratan Dimensi dan Kekasaran Permukaan Pada Square Pipe Mild Steel Menggunakan Metode Taguchi Andrian, Yohanes Oscar; Zad, Muhammad Fairuz; Nugraha, Aditya; Rinanto, Andhy
Motor Bakar : Jurnal Teknik Mesin Vol 8, No 2 (2024): Motor Bakar: Jurnal Teknik Mesin
Publisher : Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/mbjtm.v8i2.10950

Abstract

Laser tube cutting merupakan salah satu proses manufaktur sheet metal, material yang dikerjakan berupa pipa (round, square, rectangle) dan profil beam. Proses laser tube cutting dengan material square pipe mild steel 100x100x6 mm terjadi permasalahan pada hasil permukaan potong yang kasar, dimensi tidak akurat karena tatal atau chip, dan kerugian pada konsumsi daya mesin yang tinggi karena ketidaksesuaian variasi parameter. Parameter yang digunakan dalam penelitian ini yaitu laser power, dengan variasi 2400 watt, 2500 watt, 2600 watt, dan 2700 watt. Parameter gas pressure dengan variasi 0,6 bar, 0,8 bar, 1 bar, dan 1,2 bar. Parameter focus line  yaitu 0,5 mm, 1 mm, 1,5 mm, dan 2 mm. Metode Taguchi digunakan untuk mendapatkan variasi parameter yang optimal untuk mendapatkan nilai keakuratan dimensi dan kekasaran permukaan. Kekasaran permukaan diuji menggunakan surface roughness tester, sedangkan keakuratan dimensi diuji menggunakan dial caliper. Besarnya pengaruh setiap parameter terhadap keakuratan dimensi dan kekasaran di analisis menggunakan metode ANOVA. Hasil penelitian menunjukkan parameter gas pressure memiliki pengaruh terbesar terhadap kekasaran permukaan dengan persentase 53,091% dan keakuratan dimensi dengan persentase 37,338%. Nilai kekasaran minimum dan nilai keakuratan dimensi dapat dicapai dengan parameter laser power 2700 watt, gas pressure 0,6 bar, dan focus line 1 mm
PERANCANGAN DAN ANALISIS DESAIN ROTARY TABLE MESIN PUNCH HOSTI PT. ATMI SOLO DENGAN SISTEM PIRING PEMBAGI Andrian, Yohanes Oscar; Narsetya, Laurensius Abed; Nugraha, Aditya; Nugroho, TH Adi
JURNAL KAJIAN TEKNIK MESIN Vol 8, No 2 (2023): Jurnal Kajian Teknik Mesin
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jktm.v8i2.6777

Abstract

AbstrakMesin adalah salah satu faktor utama penunjang keberhasilan produksi. Mesin punch hosti adalah salah satu dari mesin untuk tujuan khusus yang digunakan untuk memotong lembaran hosti menjadi beberapa ukuran tertentu. Penelitian ini menyampaikan  proses perancangan rotary table mesin punch hosti dengan sistem piring pembagi. Metode penelitian yang digunakan adalah dengan pendekatan studi literatur metode VDI 2222. Rotary table dirancang dengan memperhatikan sistem piring pembagi dan menyesuaikan mesin punch hosti yang telah ada. Kegiatan penelitian melakukan analisis terhadap sistem mekanisme kerja dan konstruksi roda gigi. Sisa limbah hasil pemotongan hosti menggunakan rotary table dengan sistem piring pembagi adalah 41,7% dimana angka presentase tersebut lebih kecil dari 50%. Dengan penambahan alat bantu berupa rotary table dengan sistem piring pembagi dengan biaya tidak lebih dari 30% dari harga mesin punch hosti, mampu memotong hosti secara konsisten.Kata Kunci: Mesin Punch Hosti, Rotary Table, Piring Pembagi, VDI 2222.AbstractThe machine is one of the main factors supporting the success of production. The host punch machine is one of the special purpose machines used to cut the host sheets into certain sizes. This study describes the process of designing a rotary table host punch machine with a dividing plate system. The research method used was a literature study approach using the VDI 2222 method. The rotary table was designed by taking into account the dividing plate system and adjusting existing host punch machines. The research activity carried out an analysis of the working mechanism system and gear construction. The remaining waste from cutting hosts using a rotary table with a dividing plate system is 41.7%, where the percentage is less than 50%. With the addition of tools in the form of a rotary table with a dividing plate system at a cost of not more than 30% of the price of a host punch machine, it is able to cut hosts consistently.Keywords: Host Punch Machine, Rotary Table, Divider Plate, VDI 2222.
Analisis Motivasi dan Persepsi Mahasiswa PPG Calon Guru Melalui Pengembangan Media Ajar Interaktif Wresni, Dhina Shinto; Prihastari, Ema Butsi; Sari, Ayu Istiana; Enggarwati, Ressa; Anggraeni, Novitasari Dyah; Andrian, Yohanes Oscar
MENDIDIK: Jurnal Kajian Pendidikan dan Pengajaran Vol 11 No 1 (2025)
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30653/003.2025111.384

Abstract

This study aims to analyze the motivation and perceptions of pre-service teacher education students in the English Language Education Program at Universitas Slamet Riyadi regarding the implementation of the Leadership Project in the form of developing interactive teaching media for English language learning. The study employed a qualitative descriptive approach with 32 participants from the 2024/2025 academic year. Data were collected through an online questionnaire using Google Forms, consisting of Likert scale items and open-ended questions, as well as weekly student reflections during the implementation at partner schools. The data were analyzed using thematic analysis, which involved data reduction, theme categorization, meaning interpretation, and descriptive narrative presentation. The findings revealed that 80% of respondents had high initial motivation, maintained positive perceptions before and after implementation, and rated the developed media as “useful” or “very useful” for learning. The types of media produced included educational board games, digital quizzes, e-magazines, ReadVenture, and AR Books, all of which effectively enhanced students’ cognitive and psychomotor engagement. The study recommends expanding the research subjects to other study programs, employing experimental designs to measure learning outcomes, and incorporating cost-benefit analysis to ensure the sustainability of interactive teaching media.
THE DESIGN OF DEBURRING AIDS TO INCREASE THE PRODUCTION EFFICIENCY OF KN0081 SPACERSAT PT. XYZ Andrian, Yohanes Oscar; Zefanya Rangga Prangestya2; Sutrisno; Yohanes Nugroho; Archi Kun Cahyo Utomo
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol. 15 No. 3 (2025): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/7kkf5d09

Abstract

Deburring is one of the important production processes in part manufacturing. Spacer KN0081 is one of the parts of the fuel bracket protractor that functions as a distance guard between the bracket and components in the car engine system. The focus of the deburring process is the quality of the deburring and the cycle time of the process. The quality and efficiency of the deburring process can be improved by using tools for the deburring process. The design of the deburring tool uses a collet clamping mechanism and an interlock system. The spacer is clamped using a collet, then deburred. The interlock mechanism allows the adjustment of the tool's rotation angle to facilitate the setting process. The research method used is VDI 2221 as a design tool and SOLIDWORKS software as a device for creating the design. The best variant design was selected based on technical and economic assessments resulting in a design solution for the deburring spacer product KN0081. The result of the process cycle time analysis is 0.55 minutes for the processing of 1 spacer. Based on cycle time analysis calculations, deburring tools can improve spacer quality and reduce deburring process cycle time to 80% more efficient.
Effects of Welding Current and Material Thickness on Hardness and Tensile Strength of SPCC Steel Welded Using the Metal Inert Gas (MIG) Process Sutrisno, Sutrisno; S, Yohanes Maria Astomo Dwi; Nugraha, Aditya; Hutama, Adhi Setya; Kristianto, Rudi; Andrian, Yohanes Oscar
Jurnal Rekayasa Mesin Vol. 21 No. 1 (2026): Volume 21, Nomor 1, April 2026
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v21i1.7211

Abstract

This study investigates the effect of welding current and material thickness on the hardness and tensile strength of cold-rolled SPCC steel welded using the Metal Inert Gas (MIG) process. Welding current was varied at 80 A, 90 A, and 100 A, while material thicknesses of 0.9 mm, 1.4 mm, and 2.0 mm were used. Specimens were prepared according to the ASTM E8 standard for tensile testing. Hardness measurements were conducted in the heat-affected zone (HAZ) and base metal using the Leeb hardness method, while tensile properties were evaluated through tensile testing. The results show that welding current and material thickness significantly affect the mechanical properties of the welded joints. The highest hardness value of 672 HLD was obtained at a welding current of 100 A with a plate thickness of 0.9 mm, whereas the lowest hardness value of 232 HLD occurred at 80 A with a thickness of 2.0 mm. The highest average tensile strength of 340.56 N/mm² was achieved at 90 A with a thickness of 1.4 mm. The results indicate that a moderate welding current provides optimal tensile performance, whereas higher current levels increase hardness due to greater heat input during the welding process. Therefore, appropriate parameter selection is essential to achieve optimal welding performance in thin SPCC steel plates.  
Pengembangan Sistem Pencekaman Milling Toolboy untuk Meningkatkan Stabilitas Arbor BT40 pada Rotasi 180° Adi, Albertus Yustinus Novi Misgi Prabowo; Andrian, Yohanes Oscar; Suyanto, Suyanto; Saputro, Franciscus Xaverius Ristiawan Tri; Setyawan, Gabriel Yuvicko Eda
AL JAZARI : JURNAL ILMIAH TEKNIK MESIN Volume 11, Issue 1, Mei 2026
Publisher : Universitas Islam Kalimantan Muhammad Arsyad Al Banjari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/al-jazari.v11i1.23020

Abstract

Milling toolboy merupakan alat bantu untuk menahan arbor saat proses pemasangan dan pelepasan alat potong serta pull stud. Pada kondisi eksisting di Bengkel WAD Politeknik ATMI Surakarta, sistem pencekaman berbasis pegas tidak mampu mempertahankan arbor BT40 pada posisi rotasi 180°, terutama untuk massa di atas 2,5 kg, sehingga berpotensi menyebabkan arbor terlepas dan membahayakan operator. Penelitian ini bertujuan untuk mengembangkan sistem pencekaman milling toolboy dengan mengganti mekanisme pegas menjadi sistem ulir berbasis baut M10 yang dilengkapi guide pin. Metode penelitian meliputi analisis teoritis gaya berat arbor, gaya pegas, gaya aksial baut, serta perhitungan faktor keamanan, kemudian dilanjutkan dengan pengujian fungsional pada variasi massa arbor 2 kg hingga 3,5 kg. Hasil analisis menunjukkan bahwa sistem pegas hanya menghasilkan gaya 16 N dengan faktor keamanan 0,47, sedangkan sistem ulir menghasilkan gaya aksial 2500 N dengan faktor keamanan 72,8. Pengujian fungsional menunjukkan bahwa sistem lama tidak mampu menahan arbor pada massa di atas 2,5 kg, sementara sistem baru mampu mempertahankan seluruh variasi massa secara stabil pada posisi 180°. Meskipun waktu pengoperasian sedikit lebih lama, sistem baru memberikan peningkatan signifikan pada aspek keselamatan dan keandalan. Pengembangan ini terbukti meningkatkan fungsi dan stabilitas milling toolboy dalam kondisi kerja aktual.
Co-Authors Adhi Setya Hutama Adi, Albertus Yustinus Novi Misgi Prabowo Aditya Nugraha Anggraeni, Novitasari Dyah Archi Kun Cahyo Utomo Ayu Istiana Sari Ema Butsi Prihastari Ratna Widyaningrum, Ema Butsi Prihastari Enggarwati, Ressa Kristianto, Rudi Narsetya, Laurensius Abed Rinanto, Andhy S, Yohanes Maria Astomo Dwi Saputro, Franciscus Xaverius Ristiawan Tri Setyawan, Gabriel Yuvicko Eda SUTRISNO Sutrisno, Sutrisno Suyanto Suyanto TH Adi Nugroho Wresni, Dhina Shinto Yohanes Nugroho Zad, Muhammad Fairuz Zefanya Rangga Prangestya2