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PENGARUH TEMPERATUR TUANG PADA PROSES PENGECORAN SAND CASTING TERHADAP KEKUATAN IMPAK DAN CACAT CORAN RUNNER TURBIN CROSS-FLOW SUDU 24 Aditya Lutfi Sulistyawan; Kriswanto Kriswanto; Rahmat Doni Widodo; Rusiyanto Rusiyanto; Suyitno Suyitno; Rachael Andika; Zaidan Priya Harsandi
Jurnal Pendidikan Teknik Mesin Vol 22, No 1 (2022): Jurnal Pendidikan Teknik Mesin
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jptm.v22i1.47374

Abstract

Tujuan penelitian ini adalah untuk mengetahui bagaimana pengaruh variasi temperatur tuang terhadap kekuatan impak dan cacat coran runner turbin cross-flow sudu 24 metode sand casting. Penelitian ini merupakan penelitian eksperimen, karena dalam penelitian ini akan dilakukan pengecoran runner turbin cross-flow. Variasi temperatur tuang yang digunakan adalah 650℃, 700℃, 750℃. Data hasil penelitian dianailis secara langsung, dibuat grafik, foto makro dan in-finity analyz kemudian ditarik kesimpulan dari hasil penelitian tersebut. Nilai kekuatan impak pada temperatur 600℃ sebesar 0,6247 J/mm2, temperatur tuang 700℃ sebesar 0,9778 J/mm2, dan pada temperatur tuang 750℃ sebesar 0,7290 J/mm2. Terdapat beberapa jenis cacat coran yang terjadi pada pengecoran runner turbin cros-flow sudu 24 yaitu salah alir dan sumbat dingin, penyusutan luar, retakan, sirip, kekasaran erosi, dan rontokan cetakan
Fabrication and Characterization of Asbestos Free Brake Pads Composite using Elaeocarpus Ganitrus as Reinforcement Mohamad Afiefudin; Rahmat Doni Widodo; Rusiyanto Rusiyanto
Automotive Experiences Vol 6 No 2 (2023)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.9367

Abstract

To minimize potential health hazards, there is awareness to avoid asbestos fibers in brake pads. Therefore, this study aims to produce composite brake pads using Elaeocarpus ganitrus seed powder as a substitute for asbestos. The composition of Elaeocarpus ganitrus seed powder was varied from 8%, 10%, and 12% by weight. The properties of the brake pads, including their morphology, physical characteristics, mechanical performance, and wear behavior, were thoroughly investigated and analyzed. The experimental results showed a positive correlation between the addition of 12% by weight of Elaeocarpus ganitrus and the increase in the density and hardness of the resulting sample. In addition, wear resistance increases with increasing percentage of Elaeocarpus ganitrus. Samples containing 12% by weight of Elaeocarpus ganitrus seed powder gave better properties compared to other composite samples. The research findings indicate that Elaeocarpus ganitrus particles can be an alternative to asbestos in the manufacture of brake pads.