Layli, Miesbahul (2022) Pengaruh Variasi Tekanan Kompaksi Terhadap Sifat Mekanik Dan Struktur Mikro Campuran Serbuk Logam Sisa Proses Pemesinan Dengan Metode Metalurgi Serbuk. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sisa proses pemesinan logam yang berupa serbuk (burr) di Indonesia tergolong banyak dan belum sepenuhnya dimanfaatkan. Penelitian ini bertujuan untuk melihat prospek pemanfaatan dan pengolahan burr hasil proses pemesinan logam pada proses produksi dengan cara metalurgi serbuk.Serbuk logam hasil proses pemesinan dengan ukuran 100 mesh, dicampur dengan zinc stearat sebagai zat pengikat sekaligus pelumas akan dibentuk menjadi spesimen berbentuk silinder dengan proses kompaksi. Untuk itu perlu dirancang dies dan punch yang akan digunakan dengan gaya tekan 100, 125, dan 150 kN. Spesimen hasil proses kompaksi selanjutnya akan diperiksa densitas dan porositasnya berkaitan dengan tekanan kompaksi yang diberikan. Sintering merupakan langkah selanjutnya, yaitu memanaskan spesimen dalam oven dengan suhu 1100°C dengan waktu penahanan 30 menit. Uji kekerasan, kekasaran, geser dan metalografi terhadap spesimen merupakan langkah selanjutnya untuk mengetahui kemungkinan pemanfaatan limbah serbuk hasil proses pemesinan logam apakah dapat diolah kembali menjadi benda yang lebih bermanfaat, serta mengurangi limbah industri yang ada. Hasil pengujian menunjukkan bahwa kenaikan tekanan kompaksi berbanding lurus dengan sifat mekanik. Struktur mikro yang terbentuk pada spesimen adalah ferrit dan pearlite. Hasil pengujian menunjukkan bahwa semakin tinggi tekanan kompaksi maka struktur pearlite semakin berkurang, hal tersebut menyebabkan peningkatan sifat mekanik spesimen dikarenakan struktur pearlite bersifat lunak dan ulet.
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The rest of the metal machining process in the form of powder (burr) in Indonesia is quite large and has not been fully utilized. This study aims to see the prospects for the utilization and processing of burrs resulting from the metal machining process in the production process by means of powder metallurgy. Metal powder resulting from the machining process with a size of 100 mesh, mixed with zinc stearate as a binder as well as a lubricant will be formed into a cylindrical specimen by a compaction process. For this reason, it is necessary to design dies and punches that will be used with pressing style of 100, 125, and 150 kN. The specimens from the compaction process will then be examined for their density and porosity in relation to the given compaction pressure. Sintering is the next step, which is heating the specimen in an oven at a temperature of 1100°C with a holding time of 30 minutes. Hardness, roughness, shear and metallographic tests on specimens are the next step to determine the possibility of utilizing powder waste resulting from the metal machining process whether it can be reprocessed into more useful objects, as well as reducing existing industrial waste. The test results show that the increase in compaction pressure is directly proportional to the mechanical properties. The microstructure formed in the specimen is ferrite and pearlite. The test results show that the higher the compaction pressure, the lower the pearlite structure, this causes an increase in the mechanical properties of the specimen because the pearlite structure is soft and ductile.
Item Type: | Thesis (Other) |
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Additional Information: | RSMI 671.37 Lay p-1 2022 |
Uncontrolled Keywords: | Burr, Kompaksi, Metalurgi Serbuk, Sintering, Sisa Pemesinan, Burrs, Compaction, Powder Metallurgy, Sintering, Residual Machining |
Subjects: | T Technology > TN Mining engineering. Metallurgy > TN689+ Physical metallurgy |
Divisions: | Faculty of Vocational > Mechanical Industrial Engineering (D4) |
Depositing User: | Mr. Marsudiyana - |
Date Deposited: | 26 Feb 2025 06:31 |
Last Modified: | 26 Feb 2025 06:31 |
URI: | http://repository.its.ac.id/id/eprint/118910 |
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