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All Journal Rekayasa Mesin Machine : Jurnal Teknik Mesin Jurnal Rekayasa Hijau Jurnal Rekayasa Energi dan Mekanika METAL : Jurnal Sistem Mekanik dan Termal
Alfan Ekajati Latief
Institut Teknologi Nasional Bandung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Control & Systems Engineering Earth & Planetary Sciences Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Designing CVT Slide Piece Molds for Cavity 24 Pieces on Injection Molding Machine Latief, Alfan Ekajati; S., M. Pramuda Nugraha; S., Adimas Prasetyo; Prianto, Ramdan; Sarmada, Sarmada; Irfan, Laode Mochamad
METAL: Jurnal Sistem Mekanik dan Termal Vol. 8 No. 2 (2024): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.8.2.56-62.2024

Abstract

Composite materials are often used in the industrial world, one of which is in the automotive industry. Material composite based on polypropylene high impact (PPHI) and natural fiber can be used to create slide piece components on the CVT of automatic motor vehicles. In this study, we will design molds from injection molding on an industrial scale en masse, producing a slide piece product made from composite materials. This research is a development of the previous injection molding mold. In the study, the solidworks software will compare three types of multi-cavity, namely circular, series, and parallel, to get more efficient and effective molds. This multi-cavity type is designed to print PPHI material and pineapple fiber with a volume fraction of 20% and a mesh of 170. The mold material designed is made of stainless steel 2316 for cavity and core parts with a size of 180mm x180mm. Using simulation plastic on solidworks, the simulation results obtained a type of circular type that can be applied to injection machine molds because it has the most effective pressure value of 4.8 MPa and its geometric shape. Then obtained a fill time of 1,89s and volumetric shrinkage at the end of fill at a max of 17.56%, which is more efficient.
Pembuatan dan Pengujian Mesin Powder Pengolahan Serat Alam Alfan Ekajati Latief; Muhammad Pramuda; Sobari Akbar; Daffa Permana Fajri S
Jurnal Rekayasa Energi dan Mekanika Vol 6, No 1 (2026): JREM
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/JREM.v6i1.75

Abstract

Serat alam banyak digunakan pada industri otomotif sebagai bahan dasar komposit, salah satunya diantasranya adalah serat daun nanas yang memiliki potensi sebagai fiber pada komposit, proses pengolahan serat daun nanas menjadi serbuk sebelum campurkan dengan bahan plastik. Untuk meningkatkan produksi serat daun nanas menjadi serbuk perlu, mesin pengolahan serat alam perlu dilengkapi cyclone separator dan vibrating screen. Metode yang digunakan meliputi proses manufaktur, assembly, dan pengujian menggunakan serat daun nanas yang sudah dilakukan proses oven dirubah menjadi serbuk menggunakan veriasi putaran 2.800 rpm, 3.000 rpm, dan 3.200 rpm dengan variasi ayakan 120 mesh, 170 mesh, dan 200 mesh. Hasil pengujian menunjukkan kapasitas produksi tertinggi sebesar 1,260 kg/jam pada ayakan 120 mesh, diikuti 1,191 kg/jam pada 170 mesh dan 1,012 kg/jam pada 200 mesh.  
Co-Authors Ahmad Dzilfairuz Zaidan Ahmad Dzilfairuz Zaidan Akbar, Sobari Ali Ali Alvin Rhamdani Anggraeni, Nuha Desi Cahyadi Suheri Daffa Permana Fajri S Dedy Hernady Febriyanto, Naufal Dwi G. Gunawan Hernady, Dedy Hidayat, Ery Ichsan Putera Irfan, Laode Mochamad Jaka Rahmadi Kurnia Hendriawan Lutfi Darusman M. Diaz Fajar Ismail Muhammad Azis Mahardhika Muhammad Khaidar Rachman Muhammad Pramuda Nassem, Zidane Naufal Raihan M Nuha Desi Anggraeni Pikri Ilham Jauhari Pratama, M. Rezki Pratama, Muhammad Rezki Prianto, Ramdan Rakean Wide Windujati Ramadan, Riski Gunarto Robby Rinaldi Sandi S., Adimas Prasetyo S., M. Pramuda Nugraha Satria Budhi Dharma Sirodz, Muhamad Pramuda Sirodz, Muhammad Pramuda Sobari Akbar Syahril Sayuti Tri Sigit Purwanto Wibowo Pria Fahla Wildhan Rhamdani