PENGARUH VARIASI PELUMAS DENGAN METODE PELUMASAN MQL PADA PROSES FACE MILLING TERHADAP LAJU KOROSI STAINLESS STEEL AISI 316L

Reyhan Nanda Pratama, Muhammad (2021) PENGARUH VARIASI PELUMAS DENGAN METODE PELUMASAN MQL PADA PROSES FACE MILLING TERHADAP LAJU KOROSI STAINLESS STEEL AISI 316L. Sarjana thesis, Universitas Brawijaya.

Abstract

Pada penelitian ini setiap spesimen stainless steel AISI 316L dengan variasi pelumas yang berbeda dengan metode MQL yaitu minyak kelapa, minyak kelapa sawit, minyak kacang tanah, minyak mineral, dan dry cutting dilakukan proses face milling dengan menggunakan mesin HAAS VF-2, dengan menggunakan pahat Guhring Carbide Square End Mill 4-flute berdiameter 6 mm dengan feed rate sebesar 80mm/min, depth of cut 0,5mm, spindle speed 1500 rpm, dan flow rate MQL sebesar 220 ml/jam. Nilai kekasaran permukaaan benda diukur dengan alat surface roughness tester SJ-210 yang nilai kekasaran tiap permukaan tentunya berbeda. Hasil dari kekasaran permukaan, microcracks, serta korosi yang terjadi pada permukaan material dapat diamati secara visual dengan digital microscope dan Scanning Electron Microscope (SEM). Untuk uji laju korosi digunakan alat uji laju korosi PalmSens. Dari data yang didapatkan, minyak kelapa memiliki kekasaran permukaan terkecil dengan nilai kekasaran rata-rata sebesar 0,342 µm, disusul dengan minyak kelapa sawit dengan nilai kekasaran rata-rata sebesar 0,347 µm, disusul dengan minyak mineral dengan nilai kekasaran rata-rata sebesar 0,359 µm, disusul dengan minyak kacang tanah dengan nilai kekasaran rata-rata sebesar 0,374 µm, dan yang terakhir dry cutting dengan nilai kekasaran rata-rata sebesar 0,532 µm. Hasil pengujian uji laju korosi pun memiliki kecenderungan urutan yang sama seperti kekasaran permukaan dimana minyak kelapa sebesar memiliki corrosion rate sebesar 0,055 mm/year, minyak kelapa sawit sebesar 0,061 mm/year, minyak mineral sebesar 0,081 mm/year, minyak kacang tanah sebesar 0,085 mm/year, dan yang terakhir dry cutting sebesar 0,140 mm/year. Dimana dapat dilihat bahwa nilai kekasaran permukaan memiliki pengaruh yang berbanding lurus terhadap laju korosi. Hasil pengamatan visual dari digital microscope dan SEM juga membantu dalam pengamatan kekasaran permukaan, microcracks, dan korosi pada permukaan material secara visual.

English Abstract

Muhammad Reyhan Nanda Pratama, Department of Mechanical Engineering, Faculty of Engineering, Universitas Brawijaya, June 2021, Effect of Lubricant Variations with MQL Lubrication Method on Face Milling Process on Corrosion Rate of AISI 316L Stainless Steel, Supervisors: Teguh Dwi Widodo and Rudianto Raharjo In this study, each stainless steel AISI 316L specimen with different variations of lubricants using the MQL method with coconut oil, palm oil, peanut oil, mineral oil, and dry cutting, was subjected to a face milling process using the HAAS VF-2 machine using a tool work Guhring Carbide Square End Mill 4-flute with 6 mm of diameter with a feed rate 80mm/min, a depth of cut of 0.5mm, a spindle speed of 1500 rpm, and an MQL flow rate of 220ml/hour. The value of the surface roughness of the object is measured by using a surface roughness tester SJ-210 which is different for each surface. The results of surface roughness, microcracks, and corrosion that occur on the surface of the material can be observed visually with a digital microscope and Scanning Electron Microscope (SEM). To test the corrosion rate, the PalmSens corrosion rate tester was used. From the data obtained, coconut oil has the smallest surface roughness with an average roughness value 0.342 µm, followed by palm oil with an average roughness value 0.347 µm, followed by mineral oil with an average roughness value 0.359 µm, followed by peanut oilwith an average roughness value 0.374 µm, and last dry cutting with an average roughness value 0.532 µm. The results of the corrosion rate test also have a tendency in the same order as surface roughness where coconut oil has a corrosion rate of 0.055 mm/year, palm oil is 0.061 mm/year, mineral oil is 0.081 mm/year, peanut oil is 0.085 mm. /year, and the last is dry cutting of 0.140 mm/year. Where it can be seen that the value of surface roughness has a directly proportional effect on the corrosion rate. Visual observations from a digital microscope and SEM also help in visually observing surface roughness, microcracks, and corrosion on the surface of the material. Keywords: Stainless Steel AISI 316L, Surface Roughness, Corrosion Rate, Minimum Quantity Lubrication, Vegetable Oil

Other obstract

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Item Type: Thesis (Sarjana)
Identification Number: 621.8
Uncontrolled Keywords: Kata Kunci: Stainless Steel AISI 316L, Kekasaran Permukaan, Laju Korosi, Minimum Quantity Lubrication, Minyak Nabati.-- Stainless Steel AISI 316L, Surface Roughness, Corrosion Rate, Minimum Quantity Lubrication, Vegetable Oil
Subjects: 600 Technology (Applied sciences) > 621 Applied physics > 621.8 Machine engineering
Depositing User: Unnamed user with email gaby
Date Deposited: 21 Oct 2021 05:43
Last Modified: 24 Feb 2022 03:40
URI: http://repository.ub.ac.id/id/eprint/184616
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