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All Journal Journal of Energy, Mechanical, Material and Manufacturing Engineering PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Budimas : Jurnal Pengabdian Masyarakat Quantum Teknika Jurnal Mesin Nusantara ARMATUR : Artikel Teknik Mesin dan Manufaktur Jurnal Teknik Mesin Sinergi International Journal of Innovation in Mechanical Engineering and Advanced Materials J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
Andinusa Rahmandhika
Universitas Muhammadiyah Malang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Effect of Pouring Temperature Variation on Cooling Rate, Hardness and Microstructure of Al-Zn in Aircraft Structures Pambekti, Arif; Prakoso, Agung; Dinaryanto, Okto; Rahmandhika, Andinusa; Yaqin, Rizqi Ilmal
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 6, No 1 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v6i1.23945

Abstract

Al-Zn alloys are widely utilized in industries such as automotive, aircraft manufacturing, and advanced military equipment due to their exceptional strength-to-weight ratio. Among various fabrication methods, metal casting is a commonly used technique for producing structural components from these alloys. However, a significant challenge with metal casting is the reduction in mechanical properties compared to the base material before melting. This reduction highlights the need for research to identify the optimal casting conditions, particularly the casting temperature, which plays a crucial role in maintaining and potentially enhancing the material's mechanical properties. Aluminum alloy 7075, known for its high strength, was selected for investigation. According to the Al-Zn phase diagram, the melting point of aluminum alloy 7075, based on the weight percentage specified by the Standard Aluminum Association, is approximately 660°C. Experiments were conducted by varying the pouring temperature during casting in 30°C increments above this melting point. Specifically, the alloy was melted and cast at three different temperatures: 690°C, 720°C, and 750°C. The mold temperature was consistently maintained at 220°C to isolate the effects of the pouring temperature. Results indicate that increasing the casting temperature significantly affects the alloy's microstructure and mechanical properties. As the casting temperature increases, the cooling rate decreases, leading to a finer grain structure. This finer grain size directly contributes to an increase in hardness, suggesting that higher casting temperatures can enhance the mechanical properties of Al-Zn alloys. These findings emphasize the importance of precise control over casting temperatures to optimize the performance characteristics of aluminum alloy 7075 in high-strength applications.
Implementasi Prinsip Kerja Generator pada Alat Peraga Program Eduwisata di Pos Konservasi Energi Taman Rekreasi Sengkaling Universitas Muhammadiyah Malang: Implementation of the Generator Working Principle in the Props of the Eduwisata Program of Taman Rekreasi Sengkaling Universitas Muhammadiyah Malang in Energy Conservation Station Rahmandhika, Andinusa; Mokhtar, Ali; Astuti, Ary Dwi; Zakaria, Arie
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 11 No. 4 (2026): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v11i4.11604

Abstract

Taman Rekreasi Sengkaling (TRS) is a business unit owned and managed by Universitas Muhammadiyah Malang (UMM). It provides entertainment and educational (eduwisata) facilities for visitors. Students' use of the props in the Energy Conservation Station TRS UMM prompted the need for repair and maintenance. Therefore, some of the materials that need props cannot be practiced. Moreover, knowledge on energy has been developed that TRS UMM requires another prop for the eduwisata program in Energy Post. Therefore, the problem faced by TRS UMM, especially in Energy Post, is the need for additional props to serve as facilities for the eduwisata program for visitors. The solution offered to this problem is to provide this facility with props for the Energy Conservation Station TRS UMM. The props were designed to develop energy knowledge, especially for students' learning, as they aim to help students apply and practice the concepts they learned at school. The design of the props began with building the design and defining the working principle. It was tested before it was applied at Energy Post TRS UMM.
Co-Authors Achmad Fauzan Hery Adi Putra, Bagus Agung Prakoso Ali Mokhtar Ali Saifullah Arif Pambekti Ary Dwi Astuti Astuti, Ary Dwi Daryono Daryono Defantyan, Etantyo Daffa Heni Hendaryati Lutfi, Vicky Thorikhotul Nur Hasanah Okto Dinaryanto Rizqi Arif Viandi Rizqi ilmal yaqin, Rizqi ilmal Sentot Achmadi Suprianto, Herry Yepy Komaril Sofi’i Zakaria, Arie