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All Journal JTT (Jurnal Teknologi Terapan) Jurnal Pengabdian kepada Masyarakat (Nadimas) Jurnal Polimesin
Adi Kusmayadi
Politeknik Negeri Indramayu
Automotive Engineering Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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PELATIHAN DASAR MENGGAMBAR TEKNIK SISWA SMK PGRI JATIBARANG Farhan, Ahmad; Alba Pradana, Claudha; Kusmayadi, Adi; Irawan, Candra
Jurnal Pengabdian kepada Masyarakat (NADIMAS) Vol 3 No 2 (2024): Jurnal Pengabdian kepada Masyarakat (Nadimas)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/nadimas.v3i2.78

Abstract

PGRI Jatibarang Vocational School is one of the vocational schools on Jalan Mayor Dasuki No. 159 Jatibarang, Indramayu Regency, West Java Province. Based on the results of observations on PGRI Jatibarang Vocational School students who are PKL at the Politeknik Negeri Indramayu (Polindra), there are problems regarding understanding technical drawings. In order to improve the skills of PGRI Jatibarang Vocational School students, especially in understanding technical drawing to increase the competitiveness of graduates. The PKM team conducted a group discussion forum (FGD) with vocational school stakeholders, especially vocational school students who were doing internships at the D4 Manufacturing Design Study Program. The PKM team collected data and explored the problems that existed among the intern students. After conducting the FGD, the PKM Team conducted technical drawing training for students at the PGRI Jatibarang Vocational School, Indramayu Regency. The results of this training show a fairly effective increase based on pretest and posttest scores with N-Gaing.
RANCANG BANGUN MESIN CETAK ECO PAVING BLOCK PNEUMATIK BERBASIS LIMBAH PLASTIK Kusmayadi, Adi; Sukroni, Sukroni; Haris, Emin; Irawan, Candra; Rohmat, Yusup Nur; Syaifurrahman, Arief; Gunawan, Leo Van; Ghozali, Muhamad
Jurnal Teknologi Terapan Vol 11, No 1 (2025): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v11i1.715

Abstract

The escalating volume of plastic waste has become a critical environmental challenge, highlighting the need for innovative solutions to repurpose it into valuable construction materials. This study aimed to design and develop a pneumatic-based eco-paving block printing machine that uses plastic waste as its primary raw material. The research methodology encompassed the design and simulation of pneumatic circuits, structural analysis involving stress distribution, displacement, and factor of safety (FOS), and strength testing of the fabricated eco-paving blocks. The machine was equipped with a pneumatic cylinder measuring 80 × 75 mm, operating at a pressure of 6 bar and generating a maximum pressing force of 300 kg. The simulation results confirmed that the maximum stress and displacement remained within safe limits, with a minimum FOS of 8.4, thereby ensuring a stable and reliable design. Testing of the eco-paving blocks revealed compressive strengths ranging from 38 to 54 MPa, surpassing the requirements of the SNI 03-0691-1996 standard. This study demonstrates that a pneumatic-based eco-paving block printing machine effectively transforms plastic waste into high-quality construction materials compliant with national standards, offering a practical solution to the plastic waste crisis while promoting sustainability in the construction industry.
Fabrication and mechanical properties of copper and silicon carbide-reinforced aluminum metal matrix composites processed by powder metallurgy Tito Endramawan; Adi Kusmayadi; Dedi Suwandi; Ayatullah Hudayef
Jurnal Polimesin Vol 23, No 2 (2025): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i2.6238

Abstract

Metal-matrix composites (MMCs) offer superior mechanical properties, making them ideal for advanced engineering applications. However, achieving optimal strength and hardness remains a challenge. This study investigated the role of copper (Cu) reinforcement in enhancing the mechanical performance of aluminum-silicon carbide (Al-SiC) composites fabricated via powder metallurgy. Composites were synthesized with 5 wt.% and 10 wt.% Cu and sintered at 500°C, 550°C, and 600°C. The results indicate that increasing Cu content significantly improved hardness and bending strength, with the 80%Al–10%Cu– 10%SiC composition exhibiting the highest hardness (96.86 kg/mm²) and bending strength (29.08 MPa) at 600°C representing a 37.86% and 74.03% increase, respectively, compared to the 5 wt.% Cu composites. Microstructural analysis confirmed uniform Cu and SiC dispersion, improved matrix bonding, and reduced porosity at elevated sintering temperatures. These findings highlight the potential of Cu-reinforced AlSiC composites for high-performance applications, particularly in wearresistant and structural components.
Co-Authors Ahmad Farhan, Ahmad Alba Pradana, Claudha Ayatullah Hudayef Candra Irawan Dedi Suwandi Haris, Emin Leo Van Gunawan Muhamad Ghozali, Muhamad Nur Rohmat, Yusup Sukroni, Sukroni Syaifurrahman, Arief