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All Journal Journal of Mechanical Engineering Science and Technology Jurnal Rekayasa Material, Manufaktur & Energi Mekanika: Majalah Ilmiah Mekanika Journal of Metallurgical Engineering and Processing Technology Teknika STTKD: : Jurnal Teknik, Elektronik, Engine
Setiawan, Agris
UPN Veteran Yogyakarta
Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Journal of Metallurgical Engineering and Processing Technology

 1 
PENGARUH PROSES QUENCHING-TEMPERING DALAM MENINGKATKAN SIFAT MEKANIK PIPA LOW CARBON STEEL LOW ALLOY GRADE J55 MENJADI GRADE P110 Agris Setiawan; Herodes Eka Putra Tambunan
Journal of Metallurgical Engineering and Processing Technology Vol 2, No 2 (February 2022)
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v2i2.6533

Abstract

Baja  adalah  logam  paduan  dengan  besi  sebagai  unsur  dasar dan karbon sebagai unsur paduan utamanya. Kandungan karbon dalam baja berkisar antara 0.2% hingga 2.1% berat sesuai grade-nya. Fungsi karbon dalam baja adalah sebagai unsur pengeras. Unsur paduan lain yang biasa ditambahkan selain karbon adalah mangan, krom, vanadium, dan nikel. Dengan memvariasikan kandungan karbon dan unsur paduan lainnya, berbagai jenis kualitas baja bisa didapatkan. Penambahan kandungan karbon pada baja dapat meningkatkan kekerasan dan kekuatan tariknya, namun di sisi lain membuatnya menjadi getas serta menurunkan keuletannya. Proses heat treament atau proses perlakuan panas yang dilakukan terhadap sesuatu material dalam hal ini logam dengan tujuan untuk mendapatkan sifat mekanik tertentu (sesuai dengan keinginan). Untuk mencapai tujuan tersebut pada umumnya dengan melakukan kombinasi pengoperasian antara pemanasan dan pendinginan. Material dipanaskan pada temperature tertentu, ditahan dengan waktu penahanan tertentu dan diikuti dengan pendinginan dengan laju pendinginan tertentu.
PENGARUH PROSES AGEING DAN POWDER COATING PADA ALUMINIUM PROFIL SECTION 11309 Agris Setiawan; Rizal Riady Akmal
Journal of Metallurgical Engineering and Processing Technology Vol 1, No 2 (February 2021)
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v1i2.5037

Abstract

Penggunaan paduan aluminium AA6063 dalam bentuk profil sebagai komponen dalam bidang konstruksi bangunan semakin berkembang bersamaan dengan semakin berkembangnya keinginan untuk mengurangi berat dari komponen yang digunakan. Namun profil aluminium yang baru saja keluar dari mesin ekstrusi masih memiliki sifat mekanis yang rendah sehingga diperlukan proses lain untuk meningkatkan kekerasannya, salah satunya melalui proses perlakuan panas. Proses perlakuan panas yang dipilih adalah proses artificial ageing dengan suhu 185°C selama 6 jam. Selain itu, profil aluminium akan melalui tahapan pengecatan dengan powder coating. Dalam laporan ini dijelaskan pengaruh dari proses ageing terhadap kekerasan serta pengaruh proses powder coating terhadap ketebalan dan berat profil aluminium section 11309. Dari hasil analisis didapatkan bahwa proses ageing dapat meningkatkan kekerasan profil, yang semula 2 wbs menjadi 15 wbs sehingga dengan kata lain sifat mekanik dari profil aluminium juga meningkat. Sedangkan proses powder coating menyebabkan penambahan tebal pada setiap bagian profil yang terkena cat serta berat sebesar 3,09 %. Akan tetapi, proses coating yang salah akan menyebabkan profil aluminium mengalami overweight. Hal ini dapat menimbulkan kerugian cukup besar bagi perusahaan.
PENGARUH PROSES AGEING DAN POWDER COATING PADA ALUMINIUM PROFIL SECTION 7118 Agris Setiawan; Ahmad Salman Taufiqi Firas
Journal of Metallurgical Engineering and Processing Technology Vol 2, No 1 (August 2021)
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v2i1.4856

Abstract

The use of AA6063 aluminium alloy in profile form as a component for building construction is developing, along with the desire to reduce the weight of used components. However, the aluminium profile which came out of the extrusion machine doesn't have high mechanical properties, so the other processes are needed to increase aluminium profile's hardness. One of the processes which can increase its hardness is through a heat treatment process. Artificial ageing as heat treatment process was chosen, by using 185 °C temperature for 6 hours. Furthermore, aluminium profiles are also going through painting stages with powder coating. This internship report describes the effect of aging process on hardness of aluminium profiles and the effect of powder coating process on the thickness and weight of the aluminium profile section 7118. The result is, it was found that the aging process can increase the hardness of aluminium profile, from 3 wbs to 11 - 12 wbs. In other words, the mechanical properties of aluminium profiles have improved. Also, the powder coating process caused increase in thickness of aluminium profiles. From the analysis, it was found that in each part of the profile which was exposed to the paint is increasing in weight by 7.6%. However, the wrong coating process can cause aluminium profile to become overweight. This will cause significant losses for the company.
PENGARUH PROSES AGEING DAN POWDER COATING PADA ALUMINIUM PROFIL SECTION 4403 Agris Setiawan; Aurelo Wimitya
Journal of Metallurgical Engineering and Processing Technology Vol 1, No 1 (August 2020)
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v1i1.5024

Abstract

Proses ekstrusi merupakan proses pembentukan logam yang bertujuan untuk mereduksi atau mengecilkan penampang dengan cara menekan bahan logam melalui rongga cetakan. Penggunaan paduan aluminium AA6063 dalam bentuk profil sebagai komponen dalam bidang konstruksi bangunan. Penggunaan Profil alumunium ini semakin berkembang bersamaan dengan semakin berkembangnya keinginan untuk mengurangi berat dari komponen yang digunakan. Namun profil aluminium yang baru saja keluar dari mesin ekstrusi masih memiliki sifat mekanis yang rendah sehingga diperlukan proses lain untuk meningkatkan kekerasannya, salah satunya melalui proses perlakuan panas. Proses perlakuan panas yang dipilih adalah proses artificial ageing dengan suhu 185°C selama 6 jam. Selain itu profil aluminium juga melalui tahapan pengecatan dengan powder coating. Dalam laporan ini dijelaskan pengaruh dari proses ageing terhadap kekerasan serta pengaruh proses powder coating terhadap ketebalan dan berat profil aluminium section 4403. Dari hasil analisis didapatkan bahwa proses ageing dapat meningkatkan kekerasan profil, sehingga dengan kata lain sifat mekanik dari profil aluminium juga meningkat. Sedangkan proses powder coating menyebabkan penambahan tebal serta berat sebesar 4,6%. Proses Powder coating bisa mengalami underweight (berat dibawh standard) akan tetapi apabila masih dalam toleransi, profil tetap diijinkan dan lolos inspeksi.
Analysis of Dye-Penetrant Test, Tensile Test, and Bending Test Results of Shielded Metal Arc Welding (SMAW) on Carbon Steel ASTM A106 Grade B Pipes in 6G Welding Position at PPSDM Migas Cepu Setiawan, Agris; Gracella, Gracella; Hoka Padmanaba, Faqih; Alfianur Hakim, Haidar Alfianur Hakim
Journal of Metallurgical Engineering and Processing Technology Vol 5, No 1 (August 2024)
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v5i1.12488

Abstract

The weld quality its significantly depends on the mechanical characteristics of weld joint, the welding process, parameters weld process and also material selection. Insufficient parameter values and welding method can lead to welding defects and distortion that adversely affect mechanical properties. Consequently, carefully selecting appropriate weld method at an optimal level becomes crucial to mitigate defects, enhance productivity, and achieve desirable mechanical attributes in shielded metal arc welding (SMAW). PPSDM Migas has special facilities for conducting welding workshops or training and for equipment inspection or testing in the metallurgy laboratory. One of the inspected items is the welding used to join pipes. In this study, the inspected pipe is Carbon Steel ASTM A106 Grade B, welded using SMAW in the 6G position from the PPSDM Migas Cepu Refinery Unit area. The inspection methods used in this study are the Dye-Penetrant Test, Tensile Test, and Bending Test to identify welding defects and material strength. The tests conducted refer to ASME Section IX. Based on the DyePenetrant Test results on the Carbon Steel ASTM A106 pipe joint, five rounded defects were found on the weld surface, still within the acceptance criteria of ASME Section IX, thus the pipe is declared accepted. According to the Tensile Test results, spesimens 1 and 2 broke in the weld area but met the ASME Section IX criteria with tensile strengths of 464.098 MPa and 713.597 MPa, respectively, both exceeding 415 MPa, which is the tensile strength of ASTM A106 carbon steel. However, the Bending Test results showed open defects up to 3 mm, causing the pipe joint to be declared declined.
The Study of Sintering Process in Metal Forming Setiawan, Agris; Pranoto, Aditya Wahyu; Adji Putrawan, Muhammad Rizki; Maharani, Monica
Journal of Metallurgical Engineering and Processing Technology Vol 5, No 2 (February 2025)
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v5i2.14201

Abstract

Powder metallurgy is a technique used to produce metal components through the process of compacting and sintering metal powders. The sintering process involves heating the powder below its melting point, which allows the metal particles to bond together through a diffusion mechanism. This study examines the sintering mechanism, the factors that influence it, and the mechanical properties of the resulting materials. The research methods include a literature review and a literature study to collect information related to the sintering process of powder metal such as Al, Mg, Ti, Cu, Ni and Fe. The results show that sintering temperature and holding time of MMCs,AMCs have a significant effect on particle size that increase mechanical properties such as compressive strength, tensile strength, elastic modulus and density. Thus, a deeper understanding of the sintering process can improve the quality of metal products produced from powder metallurgy. 
Beneficiation of Tailings from Primary Tin Processing from Iron Ore Mines at PT Timah Tbk in PPBT Tanjung Ular Setiawan, Agris; Manalu, Naomi B; Setyani , Atik; Wahyuningsih, Tri; Putri, Adinda; Andreana, Mellyna
Journal of Metallurgical Engineering and Processing Technology (August 2025)
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The tailings produced from the previous processing are known to still contain valuable minerals such as cassiterite (SnO2), as well as associated minerals such as Fe, ilmenite, and zircon. Therefore, a beneficiation process is needed to optimize tin recovery and minimize the loss of valuable minerals. The beneficiation process includes sampling, sample reduction, grinding using a rod mill, and separation of valuable minerals using a shaking table and wet magnetic separator, as well as X-ray fluorescence (XRF) analysis. The XRF results of primary tin concentrate beneficiation using a shaking table increased the Sn content from 0.736-1.259% to 20-18.99% with a recovery of 1.779-7.456%. Magnetic separation of 40 kg of feed produced magnetic fractions of 5.7 kg and 18 kg, with Fe grades of 8.96–8.99% and Sn up to 4.90%. The grade increase was achieved, but Fe separation was still not optimal because some magnetic minerals were carried over to the non-magnetic fraction.
Co-Authors Adji Putrawan, Muhammad Rizki Ahmad Salman Taufiqi Firas Alfianur Hakim, Haidar Alfianur Hakim Andreana, Mellyna Aurelo Wimitya Dyah Probowati, Dyah Gracella, Gracella Herodes Eka Putra Tambunan Hoka Padmanaba, Faqih Maharani, Intan Maharani, Monica Manalu, Naomi B Mirahati, Riria Zendy Muhamad Alfa Rizky Pranoto, Aditya Wahyu Putri, Adinda Rizal Riady Akmal Setyani , Atik Tri Wahyuningsih Untung Sukamto Wahyuningsih, Fransisca Diana Yuliana, Margaretha Tri Budi