Wijanarko, Agung and Rahmanto, Rizki Agung (2019) Analisa Pengaruh Waktu Pencelupan pada Proses Quenching Terhadap Struktur Mikro dan Kekerasan. Diploma thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Produksi pisau buatan tangan yang dibuat oleh pande besi dipengaruhi oleh keterampilan yang sangat diperlukan dan diperoleh secara turun temurun. Di Kota Surabaya, produksi pisau ini atau pengasahan pisau, masih mempunyai pasar yang besar khususnya saat menjelang Hari Raya Qurban. Karena keterampilan tersebut mampu menghasilkan mata pisau yang tajam. Namun, keterampilan yang melekat ini sulit untuk ditransfer ke orang lain secara eksplisit. Lebih dari itu, produksi ini tidak kompetitif, jika dibandingkan dengan produk pabrikan. Sehingga tujuan proyek akhir ini yaitu mempelajari mekanisme proses pembuatan pisau dari baja bekas pegas daun di pande besi UD Mannan di Bratang Kota Surabaya, mengetahui pengaruh waktu pencelupan pada media quenching terhadap kekerasan dan struktur mikro, dan pengaruh penambahan pelapisan pelindung dengan teknik elektroplating. Baja bekas pegas daun (JIS SUP 9A) yang termasuk dalam baja paduan karbon sedang yang mengandung kadar 0.38-0.45 % C, dilakukan quenching relatif lambat dengan media oli, sambil berulang kali di gosok ke bara api dari arang kayu jati dan memberikan hasil uji rata-rata kekerasan terhadap mata pisau, bagian tengah, dan bagian lain yaitu sebesar 50,04 , 36,9, dan 37,98 HRC. Hal ini menunjukkan bahwa mata pisau yang dihasilkan lebih tajam. Hasil uji metalografi terhadap specimen tanpa quenching menujukkan mikrostruktur kombinasi Ferit dan Perlit, sedangkan dengan quenching menunjukkan kombinasi austensit sisa dan martensit. Perlakuan pelapisan timah krom dalam media asam terhadap pisau yang dihasilkan memberikan hasil kekerasan 63.8 HRC.
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Skilled hand made knife production influenced by the indispensible human skills obtained hereditarily. In Surabaya City, the production of hand made knives or sharpening of knives, still especially have a big market place ahead of Eid al-Adha. Because the skilles capable of producing the sharp baldes. However, the the tacid knowledge get from personal experience hereditarily is difficult to explicitly transfer to another person. Furhermore, this production is not competitive, if compared with the manufacturing products. So the aims of final project are to study hereditarily mechanism processing of kitchen knives from used steel leaf springs belonging to UD Mannan, in Surabaya City, to find out the effect of quenching time in oil medium toward the hardness and microstructure of the knives processed, and additional effect of coating with electroplating techniques to knives. As result, the blade made of steel leaf springs (JIS SUP 9A) that containing of 038-0.45 % C, is treated by quenching relatively slow in oil medium, while rubbed repeatedly at the graetly heated charcoal made of teak wood, and give the average hardness of blade, middle and an other part that are 50,04, 36,9 and 37,98 . HRC. This indicate the treated blade is sharper than other parts. the result of metallographic test toward the specimens without quenching indicates the combination of Ferrite and Perlite, while with quenching indicates combination of residual austensite and martensite. Coating treatment with lead-chrome in the acid medium toward the specimen results the hardness of 63.8 HRC.
| Item Type: | Thesis (Diploma) |
|---|---|
| Uncontrolled Keywords: | Pisau Dapur, Baja Pegas Daun, Waktu Quenching, Elektroplating ========================================================= Kitchen Knife, Leaf Spring Steel, Quenching Time, Electroplating |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy T Technology > TN Mining engineering. Metallurgy > TN752.I5 Steel--Heat treatment T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial. |
| Divisions: | Faculty of Vocational > 24305-Industrial Chemical Engineering Technology |
| Depositing User: | agung wijanarko |
| Date Deposited: | 29 Aug 2020 08:09 |
| Last Modified: | 09 Jan 2024 07:30 |
| URI: | http://repository.its.ac.id/id/eprint/81566 |
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