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All Journal Machine : Jurnal Teknik Mesin Bulletin of Community Engagement MACHINERY: Jurnal Teknologi Terapan Journal Serambi Engineering (JSE)
DWI ARNOLDI
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Religion Arts Humanities Automotive Engineering Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Efisiensi Waktu Pengemasan Keripik Menggunakan Alat Pengemas Semi Otomatis Berbasis Internet of Things Arif Suersa; Muhammad Rasid; Dwi Arnoldi
Bulletin of Community Engagement Vol. 4 No. 3 (2024): Bulletin of Community Engagement
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/bce.v4i3.1565

Abstract

This research aims to improve the efficiency and quality of chip packaging by testing four main aspects: stepper motor speed, sensor errors, the effect of sealer temperature on packaging quality, and a comparison of semi-automatic and manual packaging times.  Stepper motor speed testing was conducted to find the optimal speed, which was found to be 300 RPM. At this speed, the average packaging time per product is 7.84 seconds with a total of 36 products packed in 5 minutes. Error testing on the sensors showed that the Ir Proximity and Ultrasonic (Plastic) sensors had a high accuracy of 86.7%, while the Ultrasonic (Chips) sensor had an accuracy of 80%. Sealer temperature testing showed an optimal temperature of 57.9°C to achieve the best packaging quality. High temperatures such as 112.1°C result in poor packaging quality. Comparison of packaging times showed that the semi-automated method with a 300 RPM motor was more efficient, producing an average of 36 products in 5 minutes compared to 16 products using the manual method. The results of this study show that the use of stepper motors at 300 RPM, high-accuracy sensors, proper sealer temperature settings, and semi-automated technology in the packaging process can improve the efficiency, quality, and consistency of chip packaging production.    
Pengaruh Variasi Pukulan terhadap Kekerasan Baja menggunakan Mesin Hammer Otomatis Kiki Qauri Valentino; M. Rasid; Dwi Arnoldi
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study evaluates the effect of varying hammer strokes during the forging process using an automatic hammer machine on the hardness of ST 37 steel, ST 60 steel and automotive leaf springs. The experiments were carried out at a temperature of 600°C to analyse dimensional changes and material hardness resulting from plastic deformation. Data was obtained from thickness and hardness tests using the Vickers method. Variations in hammer strokes (0, 32 and 49 strokes) resulted in a significant increase in material hardness. For ST 37 steel the hardness increased from 137,964 kgf/mm² to 170,088 kgf/mm², for ST 60 steel from 158,781 kgf/mm² to 172,56 kgf/mm² and for automotive leaf springs from 198,442 kgf/mm² to 241,756 kgf/mm². This improvement is attributed to the strain hardening mechanism, which induces the accumulation of dislocations in the microstructure of the material, thereby increasing its resistance to further deformation. The variation in hammer strokes also influenced the changes in material thickness, with different levels of deformation depending on the mechanical properties of each material. ST 60 steel showed a more controlled deformation response compared to ST 37 steel, while automotive leaf springs showed greater deformation due to their more ductile nature. These results emphasise that forging process parameters, such as the number of hammer strokes, play a crucial role in enhancing the mechanical properties of materials to meet specific engineering application requirements.
Implementasi internet of things pada alat praktikum viskometer untuk pembelajaran fisika Adian Aristia Anas; Isma Dwi Puspitasari; Dwi Arnoldi
Machine : Jurnal Teknik Mesin Vol 12 No 1 (2026): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/ahh4dd96

Abstract

Penelitian ini bertujuan untuk merancang dan membuat alat bantu praktikum viskometer berbasis Internet of Things yang dapat membantu mahasiswa lebih paham soal pengukuran kekentalan cairan. Alat bantu praktikum viskometer ini dibuat menggunakan sensor infrared, motor DC dan komponen lainnya dengan menggunakan platfrom aplikasi Blynk. Konsep dari viskometer ini adalah viscometer spindle, dilakukan penelitian dari Mei sampai Juli 2025 lewat eksperimen. Pengujiannya menggunakan tiga jenis fluida dan tiga jenis suhu, nilai viskositasnya sebagai berikut: air bersih pada 28°C (0,00083 Pa.s), 40°C (0,00066 Pa.s), 60°C (0,00044 Pa.s); minyak goreng pada 28°C (0,0388 Pa.s), 40°C (0,0249 Pa.s), 60°C (0,0164 Pa.s); SAE 10W-30 pada 28°C (0,0936 Pa.s), 40°C (0,0634 Pa.s), 60°C (0,0406 Pa.s). Alat ini akurat sampai 96,34% analisis ANOVA diperlukan untuk menunjukan bahwa fluida dan suhu  berpengaruh signifikan tehadap viskositas hal ini menunjukan bahwa P-value < Fcrit atau H1 diterima. Hal ini membuktikan bahwa alat ini sesuai dengan teori fisika, di mana kenaikan suhu pada fluida membuat viskositasnya turun drastis. Alat bantu praktikum viskometer ini lebih efektif dan efsien dalam pembelajaran bagi mahasiswa dalam melakukan praktikum.
PERANCANGAN ALAT BANTU PERFORASI SARANGAN DANDANG UNTUK PENGRAJIN RUMAHAN DENGAN PENDEKATAN QUALITY FUNCTION DEPLOYMENT (QFD) Irfan Prayogi; Dwi Arnoldi; Adian Aristia Anas
MACHINERY Jurnal Teknologi Terapan Vol. 7 No. 2 (2026): MACHINERY: Jurnal Teknologi Terapan (In Press)
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36257/machinery.v7i2.11793

Abstract

Industri rumahan pembuatan dandang di Kelurahan Bandung Kiri, Lubuklinggau masih melakukan proses pelubangan sarangan secara manual sehingga hasilnya kurang seragam dan kurang efisien. Penelitian ini bertujuan merancang alat bantu menggunakan metode Quality Function Deployment (QFD) melalui identifikasi kebutuhan pengguna, penyusunan House of Quality (HOQ), dan perancangan produk. Hasil perancangan menunjukkan tiga prioritas teknis utama, yaitu sistem dongkrak hidrolik (19,48%), efisiensi siklus pelubangan (15,67%), dan kemudahan pengadaan komponen (14,50%). Simulasi Finite Element Analysis (FEA) menunjukkan tegangan Von Mises maksimum sebesar 166,772 MPa pada gaya 87.853 N dengan Safety Factor (SF) sebesar 1,5, masih berada di bawah batas luluh ASTM A36 (250 MPa), sehingga desain dinyatakan aman dan layak diterapkan untuk meningkatkan produktivitas pengrajin.
Co-Authors Adian Aristia Anas Arif Suersa Irfan Prayogi Isma Dwi Puspitasari Kiki Qauri Valentino M. Rasid Muhammad Rasid