Studi Eksperimen Dan Analisa Pengaruh Penambahan Serbuk Silika Terhadap Kekerasan Permukaan Densitas Dan Koefisien Gesek Pada Material Resin Akrilik

Prabawanto, Tri Sakti (2021) Studi Eksperimen Dan Analisa Pengaruh Penambahan Serbuk Silika Terhadap Kekerasan Permukaan Densitas Dan Koefisien Gesek Pada Material Resin Akrilik. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada Bushing lengan ayun (swing arm) terjadi kontak gesek antara poros dengan lengan ayun, seperti kerja bearing sebagai media pergerakan translasi lengan ayun. Bushing sering dilakukan penggatian karena mengalami keausan yang melebihi toleransi, sehingga menyebabkan ketidak nyamanan bahkan dapat membahayakan ketika digunakan. Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh dari penambahan serbuk silika terhadap specific wear rate dan kekerasan permukaan dari material resin epoxy yang nantinya dapat digunakan sebagai acuan alternatif material pengganti untuk keperluan-keperluan tertentu. Pengujian dilakukan dengan menggunakan tribometer pin on disk dengan variasi material resin epoxy pada bushing berupa penambahan serbuk silika dengan fraksi volume sebesar 5%, 10%, 15%, 20%. Berdasarkan penelitian yang telah dilakukan dari percobaan variasi penambahan 5%, 10%, 15%, 20% konsentrasi serbuk silika, didapatkan nilai kekerasan permukaan adalah sebesar 62,39 HD, 64,67 HD, 67,61 HD, 69,39 HD. Nilai koefisien gesek kinetis adalah sebesar 0,197, 0,193, 0,190, 0,168, dan nilai densitas adalah sebesar 1,03938 gr/cm3, 1,07075 gr/cm3, 1,0838, gr/cm3, 1,09005 gr/cm3. Hal ini menunjukkan bahwa koefisien gesek berbanding terbalik dengan nilai kekerasan permukaan dan densitas. Penambahan serbuk silika pada material resin akrilik dapat meningkatkan nilai kekerasan permukaan dan nilai densitas namun memperkecil nilai koefisien gesek. ===================================================================================================== In the swing arm bushing occurs frictional contact between the shaft and the swing arm, such as bearing work as a medium for translational movement of the swing arm. Bushing needs to be replaced frequently because it experiences wear that exceeds tolerance, so it causing discomfort and even danger when used. The objective of this study is to determine the effect of the addition of silica powder on the specific wear rate and surface hardness of the epoxy resin material which later can be used as alternative reference material for certain purposes. Tests were carried out using a pin on disk tribometer with a variety of epoxy resin material on the bushing in the form of the addition of silica powder with a volume fraction of 5%, 10%, 15%, 20%. Based on the research, it shows that the addition of silica powder with a volume fraction of 5%, 10%, 15%, 20% the value of surface hardness are 62.39 HD, 64.67 HD, 67.61 HD, 69.39 HD, the coefficient of friction kinetik values are 0,197, 0,193, 0,190, 0,168 and the density are 1.03938 gr/cm3, 1.07075 gr/cm3, 1.0838 gr/cm3, 1.09005 gr/cm3. that is shown that coefficient of friction inversely with surface hardness and density. The addition of silica powder to acrylic resin material can increase the value of hardness and but reduce the coefficient of friction value.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: wear rate, bushing, Silika(SiO2), acrylic resin, wear rate, bushing, Silika (SiO2), resin akrilik
Subjects: Q Science > QC Physics > QC585.75.S55 Silica
T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL440 Motorcycles.
T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL671.6. Materials--Fatigue.
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User: Tri Sakti Prabawanto
Date Deposited: 12 Mar 2021 03:05
Last Modified: 12 Mar 2021 03:05
URI: https://repository.its.ac.id/id/eprint/84152

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