Adhi, Aria Narendra (2020) Optimasi Parameter Perlakuan Panas Terhadap Kekerasan Baja AISI 4140 Dengan Metode Taguchi Untuk Aplikasi Poros Pompa Sentrifugal Multistage. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Poros merupakan salah satu komponen terpenting dari pompa sentrifugal multistage. Baja AISI 4140 adalah salah satu material yang dapat digunakan untuk aplikasi poros pompa sentrifugal multistage. Namun kekerasannya hanya sekitar 293 HV, sementara menurut katalog ASSAB 709 yang ekuivalen dengan 4140, kekerasan yang dipersyaratkan adalah sebesar 302-372 HV. Perlakuan panas diperlukan untuk mendapatkan sifat mekanik yang sesuai dengan standar, dengan variasi berupa temperatur austenisasi, media quenching, dan temperatur tempering. Penelitian ini dilakukan untuk menganalisis kombinasi parameter yang dapat menghasilkan kekerasan optimum serta persentase kontribusi setiap parameter terhadap hasil akhir menggunakan metode Taguchi. Metode pengujian yang digunakan adalah uji hardness Vickers dan uji metalografi. Melalui analisis S/N ratio, didapatkan kombinasi parameter optimum yaitu temperatur austenisasi 877oC, media quenching brine, dan temperatur tempering 545oC. Melalui analisis ANOVA, didapatkan bahwa parameter temperatur austenisasi memiliki persentase kontribusi sebesar 0,46%; media quenching sebesar 5,84%; dan temperatur tempering sebesar 92,67%.
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Shaft is one of the most important components of a multistage centrifugal pump. Material that can be used for multistage centrifugal pump shaft applications is AISI 4140 steel. However, the hardness is only around 293 HV, while according to ASSAB 709 catalog which is equivalent to 4140, required hardness is 302-372 HV. Heat treatment is carried out with variations in austenization temperature, quenching media, and tempering temperature to obtain mechanical properties in accordance with the standard. This research was conducted to analyze the combination of parameters that can produce optimum hardness and the percentage contribution of each parameter to the final result using the Taguchi method. The test method used is Vickers hardness test and metallographic test. Through the analysis of S / N ratio, the optimum parameter combination is obtained, namely 877oC austenization temperature , brine quenching media, and 545oC tempering temperature. Through ANOVA analysis, it was found that the austenization temperature had a contribution percentage of 0,46%; media quenching of 5,84%; and tempering temperature of 92,67%.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | AISI 4140, Kekerasan, Perlakuan Panas, Pompa, Taguchi |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN689+ Physical metallurgy T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy T Technology > TN Mining engineering. Metallurgy > TN752.I5 Steel--Heat treatment |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Aria Narendra Adhi |
| Date Deposited: | 11 Aug 2020 02:46 |
| Last Modified: | 26 May 2023 00:58 |
| URI: | http://repository.its.ac.id/id/eprint/77520 |
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