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All Journal Jurnal Rekayasa Material, Manufaktur & Energi Infotekmesin SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) IRA Jurnal Pengabdian Kepada Masyarakat Nozzle : Journal Mechanical Engineering
Amin Nur Akhmadi, Amin Nur
Politeknik Harapan Bersama Tegal
Aerospace Engineering Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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Analisis Karakteristik Material Camshaft AISI 8620 dan Besi Cor Kelabu menggunakan Metode Metalografi dan Spektrometri Optik Setijo Budi, Sigit; Hendrawan, Andre Budhi; Akhmadi, Amin Nur; Nashrudin, Hafidz
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.261

Abstract

The demand for non-OEM camshafts is increasing, but this raises concerns about material quality. This study analyses the material characteristics of AISI 8620 and grey cast iron camshafts used in 125cc automatic motorcycles. Testing was conducted using Metallography and Optical Emission Spectrometry. AISI 8620 exhibits a fine ferrite-pearlite microstructure and alloying elements such as chromium and molybdenum, which support heat treatment. Cast iron exhibits a pearlite structure with flake graphite, providing superior damping but less toughness. The results indicate that AISI 8620 is more suitable for high-load applications, while cast iron is suitable for lightweight and cost-effective applications. This study provides important insights into material selection for motorcycle camshaft manufacturing.
ANALISIS SEKAT UKUR SEGIEMPAT PADA PENGUJIAN POMPA AIR Nurhayati, Emmy; Usman, Mukhamad Khumaidi; Akhmadi, Amin Nur; Lestari, Fitri Ayu
Nozzle : Journal Mechanical Engineering Vol 11, No 2 (2022): Nozzle : Journal Mechanical Engineering
Publisher : Politeknik Harapan Bersama Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/nozzle.v11i2.5856

Abstract

Kota besar denga pemukiman yang padat membuat banyak genangan air yang tinggi hal ini disebabkan karena curah hujan yang tinggi serta resapan air tanah yang kurang dan banyaknya sampah yang menyumbat saluran air, untuk menanggulangi banjir dengan cepat salah satunya dengan cara memompa air agar cepat surut, tentunya dengan pompa air debit besar, untuk mendapatkan pompa air yang debitnya besar perlu dilakukannya pengujian debit pompa air dengan cara menganalisis pompa air menggunakan alat skat ukur segi empat, dengan metode ini nilai debit air yang dihasilkan oleh pompa air dapat diketahui. hasil perhitungan ketinggian air menggunakan skat ukur berbentuk segiempat pada ketinggian 9,5 cm didapatkan debit air sebesar 15.175,06 liter/menit.
Enhancement increasing the productivity of the traditional herbal “Jamu Mak Lin” through a community partnership program Hapsari, Ira Maya; Akhmadi, Amin Nur; Tulodo, Rizki Prasetyo; Santosa, Irfan
SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) Vol. 6 No. 2 (2025)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/spekta.v6i2.14742

Abstract

Background: The traditional home-based herbal medicine industry,” Jamu Mak Lin” faces challenges, including traditional herbal medicine production methods on traditional equipment. The packaging and labels of herbal medicine are not registered. There is a scarcity of effective door-to-door marketing strategies. A lack of good management and financial accountability systems. Contribution: The main objective is to increase the productivity of “Jamu Mak Lin” traditional herbs through improvements in production processes and equipment, financial management, and marketing strategies. Method: The method applied is Participatory Action Research (PAR), consisting of both hard and soft programs. Results: The results show a significant improvement in liquid herb production, reaching 150 bottles of 350 mL (approximately 52.5 liters), with an estimated increase in productivity and profit of up to 85% per day. In addition, “Jamu Mak Lin” traditional herbal products have been registered for halal certification, and the packaging design has been improved to be more elegant, hygienic, and readable. Conclusion: Through this community partnership program, the productivity and income of “Jamu Mak Lin” traditional herbal products have significantly increased. The next program’s sustainability is achieved by diversifying herbal medicine dipping and herbal medicine cafes.
Co-Authors Ariyanto, Nur Aidi Aryanto, Nur Aidi Emmy Nurhayati Faisal, Reza Arfi Faoji, Ahmad Fatkhurozzak, Faqih Fatkhurrozak, Faqih Hapzi Ali Hendrawan, Andre Budhi Ira Maya Hapsari Irfan Santosa Lestari, Fitri Ayu mukhamad khumaidi usman Nashrudin, Hafidz Qurohman, M. Taufik Rizki Prasetyo Tulodo Sanjaya, Firman Lukman Setijo Budi, Sigit Sigit Setijo Budi, Sigit Setijo Usman, M Khumaidi