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Journal : Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi

Studi Lapisan Hasil Hardfacing Dengan Variasi Arus Dan Elektroda AWS A5.13 EFe2/A5.1 E7018 Ferry Budhi Susetyo; Himawan Hadi Sutrisno; Rizchi Ayu Suryadewi
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.1944

Abstract

The current becomes a factor influencing the hardness value In the welding. The higher the welding current would affect the higher the hardness test results. If the current were used is low it will make it difficult to ignite the electric arc. Aims of this study to determine the effect of welding current (90, 110 and 130 A) and buffer layer on hardness, macro and microstructure layers are result from hardfacing using AWS A5.13 EFe2/AWS A.51 E7018 elektrodes. The hardfacing process uses a Shielded Arc Metal Welding (SMAW) welding machine with DC+ polarity. Hardfacing consists of three layers, 1st layer uses AWS A5.13 EFe2 electrode, 2nd layer uses AWS A.51 E7018 electrode, and 3rd layer uses AWS A5.13 EFe2 electrode. The increase in hardness will occur significantly after hardfacing on the base metal. The higher welding current is resulting the higher hardness value. The hardness of the 130 A specimen is higher than 90 A and 110 A specimen. In the 130 A specimen the hardness value was 468.1 VHN, and in the 90 A specimen the hardness value was 358.94 VHN.
Efek Variasi Campuran Solvent-Varnish dan Suhu Pengeringan terhadap Karakteristik Pelapis Sopiyan; Muhammad Iqbal; Ferry Budhi Susetyo
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 4 Nomor 1 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.2450

Abstract

Painting is a process to make a thin layer of paint over an object. Factors to beautify the results of painting on the vehicle body are given a layer of varnish. To produce a quality varnish coating, it is necessary to pay attention to the ratio between the varnish-solvent used and the drying method used. This study aims to determine the mixture of varnish - solvent (1:0,1 and 1:0,2) with a drying temperature method of 40°C, 60°C, and 80°C on gloss, thickness, and adhesion to the motor vehicle body. The lower the oven temperature, the higher the gloss and the thicker the coating. The best adhesion at the oven temperature of 40ºC and 60ºC on all varnish-solvent compositions. The higher of the solvent mixture would result glossier and less thickness of the layer form.
Pengaruh Suhu Pengeringan Elektroda E 7018 Terhadap Hasil Pengelasan Material A36 Candra Wahyu Setyawan; Syaripuddin; Ahmad Lubi; Ferry Budhi Susetyo
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 4 Nomor 2 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.3510

Abstract

The better welding results are always a scientific challenge in welding engineering. This is to ensure the connection functions properly according to its designation. The main purpose of this study was to determine the effect of electrode drying temperature on the mechanical properties of ASTM A36 steel weld joint. This research was conducted at the Condet Welding Training Center and PT. Gamma Hepsi Condet. The tests carried out were visual tests, radiographs, and tensile tests. The results showed that the drying of the electrode E 7018 without an oven had a lot of welding defects on the inside in the form of porosity about 2 mm. The results showed that the highest tensile strength of 50.01 kgf/mm² was found in specimens using an electrode drying temperature of 230ºC.
Pengaruh Campuran Thinner Terhadap Daya Rekat dan Ketebalan Lapisan Hasil dari Alat Custom Refill Cat Semprot Ahmad Lubi; Yunita Sari; Rani Anggarainy; Ardi Candra Fatkhurrohman; Mohammad Rizqi Dwi Febrianto; Reynaldi Ramadhan; Ferry Budhi Susetyo
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 1 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i1.4226

Abstract

A custom spray coating refill equipment has been designed and fabrication. For this reason, it is necessary to trial the equipment that has been made. This study aims to determine the performance of custom spray coating refill equipment. For a comparison parameter, coating and thinner mixture variations were conducted to determine the adhesion and thickness of the coating layer formed. The coating used in this experiment was Nitrocellulose (NC) and Polyurethane (PU) thinner. The ratio of coating and thinner mixture used are 1:1.5, 1:2, and 1:2.5. After mixing, the mixture was put into the sprayer using custom spray paint refill equipment. The mixture of coating and thinner was sprayed onto the SPCC steel plate. To measure, the adhesion and thickness of the coating layers, a cross-cut tool (according to ASTM-D3359) and a thickness gauge (according to the ASTM-AMT15) were carried out respectively. It seems the spray paint refill equipment was functioning properly. This is due to the quality of the coating layers having good adhesion, shown by all specimens getting 5B classification (0% not peeled off). Moreover, an increase in the thinner composition is lead to a decrease in the coating thickness.
Pengaruh Tebal Deposit Lasan Terhadap Properti Lapisan Menggunakan Elektroda HV 450 Syaripuddin Syaripuddin; Sopiyan Sopiyan; Alpi Cahyadi; Sigit Dwi Yudanto; Muhammad Yunan Hasbi; Ferry Budhi Susetyo
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.4956

Abstract

This study investigates the effect of the increased welding layers welded by the SMAW process on distorsion, thickness, microstructure, hardness, and corrosion. The method used in this research is experimental. Low-carbon steel with a size of 150x10x10 mm was welded by the SMAW technique using an HV 450 electrode. Variations in the welding layers are single, double, and triple. The three variations of the samples were observed with a digital camera and an optical microscope. Moreover, samples were tested with a hardness tester. Corrosion testing was also carried out to determine the corrosion rate of the layers formed. The results showed that the number of SMAW welding layers affected the thickness, phase, hardness, and corrosion rate. The hardness of one layer is less than that of thicker specimens, while the corrosion rate of three layers is lower than that of less-thick samples.