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All Journal Turbo : Jurnal Program Studi Teknik Mesin Jurnal Teknik Mesin Cakram
Irwan Aranda
Universitas Pamulang
Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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ANALISA KERUSAKAN SHAFT ULIR DAN KOPLING POMPA CANISTER PADA MESIN TINTING AUTOMATIC DAN OPTIMASI MEMPERPANJANG UMUR PAKAI Irwan Aranda
Jurnal Teknik Mesin Cakram Vol 2, No 2 (2019)
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jtc.v2i2.4026

Abstract

Abstrak: Mesin Tinting Automatic adalah mesin penghasil warna. Kerusakan yang terjadi akibat korosi sumuran pada permukaan body shaft ulir dan kopling apabila di abaikan dapat menyebabkan hubungan shaft ulir dan kopling patah. Pada pengujian komposisi kimia menunjukan C 0.0696 bahwa matrial baja karbon rendah, uji metalografi menunjukan bahwa terdapat unsur ferit dan perlit, dan uji kekerasan dengan metode Vickers menunjukan bahwa pada bagian shaft ulir dengan rata-rata 202221 HV. Pada saat korosi menyebabkan mengecilnya dimensi pada guide motor dari 13.91 mm ke 12.85 mm dan plate joint (kopling) dari 13 mm ke 12.5 mm. Pada pengujian SEM atau EDX menunjukkan tingginya unsur sulfur (S) dan Zing (Zn) yang terdapat pada pewarna 34% (pigment). Korosi sumuran pada shaft ulir terjadi karena adanya kesalahan design dimana kopling terendam cairan yang bersifat korosif. Untuk optimasi usaha memperpanjang umur operasional (life time) harus melakukan redesign dengan menggunakan seal untuk memisahkan antara ruangan tinta dan kopling. Kata kunci: Shaft ulir dan kopling, Kerusakan, Pengujian, Redesign
Pengaruh Variasi Fraksi Volume Serbuk Alumina Terhadap Kekuatan Tarik Dan Kekerasan Pada Aluminium 1050 Mohammad Andrea Iswanto; Irwan Aranda
TURBO [Tulisan Riset Berbasis Online] Vol 15 No 1 (2026): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v15i1.5384

Abstract

Aluminum 1050 is a material with low density, good corrosion resistance, and excellent formability; however, it possesses relatively low mechanical strength and hardness. One approach to improving its mechanical properties is the addition of alumina (Al₂O₃) powder as a reinforcing material to form a Metal Matrix Composite (MMC). This study aims to investigate the effect of alumina powder volume fractions of 0%, 3%, 6%, and 9% on the tensile strength and hardness of Aluminum 1050 produced using the stir casting method. The melting process was carried out at approximately 700°C, while the alumina powder was preheated at 400°C for 30 minutes. The molten metal was then stirred for 5 minutes before being poured into the mold. Mechanical properties were evaluated using a Universal Testing Machine (UTM) for tensile testing and a Brinell Hardness Tester for hardness testing. The tensile test results showed that the highest average tensile strength was obtained at a 3% alumina volume fraction, reaching 52.27 MPa, followed by 6% at 50.01 MPa, 0% at 43.90 MPa, and 9% at 20.68 MPa. Meanwhile, the average hardness values were 88.33 HBN, 112.41 HBN, 115.48 HBN, and 113.59 HBN for the 0%, 3%, 6%, and 9% alumina volume fractions, respectively. The results indicate that the addition of alumina powder improves the mechanical properties of Aluminum 1050. The optimum tensile strength was achieved at a 3% alumina volume fraction, while the highest hardness value was obtained at a 6% alumina volume fraction. Excessive alumina addition may reduce the material strength due to non-uniform particle distribution and the formation of porosity.
Co-Authors Mohammad Andrea Iswanto