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All Journal JURNAL INTEGRASI Jurnal Teknologi dan Riset Terapan (JATRA) DEVICE Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam INTERNATIONAL JOURNAL OF MECHANICAL COMPUTATIONAL AND MANUFACTURING RESEARCH Journal of Applied Mechanical Technology (JAMET) Taushiah: Jurnal Hukum, Pendidikan dan Kemasyarakatan
Purba, Adi Syahputra
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Dimensional check of weld neck flange based on ASME B16.5 Ritonga, Fatima Sari; Purba, Adi Syahputra; Simanjuntak, Jefri Kemri Rodi Samuel; Fadilah, Nurul; Amalia, Mutia
International Journal of Mechanical Computational and Manufacturing Research Vol. 14 No. 2 (2025): August: Mechanical Computational And Manufacturing Research
Publisher : Trigin Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/computational.v14i2.268

Abstract

This study aims to verify that the dimensions of a weld neck flange conform to ASME B16.5 standards. The flange used is a raised face type made of carbon steel ASTM A105N with 16-inch NPS, selected for its corrosion resistance, and welded with UNS 006625, a nickel-rich alloy that enhances corrosion protection. Dimensional checks were performed on five samples, each measured three times, using both visual inspection and measuring tools, including a roughness comparator and vernier caliper. Key dimensions measured include outside diameter (705 mm, tolerance +4 mm/-1 mm), inside diameter (333.3 mm, ±1.5 mm), bolt circle diameter (616 mm, ±1.5 mm), flange thickness (88.90 mm, +3 mm), and hub thickness (30.43 mm post-welding, with tolerance not less than 12.5% of pipe wall thickness) the visual inspection assessed surface roughness within the acceptable range of 3.2 µm to 6.3 µm. The inspection results showed that all measured dimensions were within the permissible limits, confirming that the weld neck flange meets the requirements of ASME B16.5.
Identification of flow mark defect on haitian MA 1200 machine in the molding process at PT. Philips Industries Batam Juwita, Erna; Purba, Adi Syahputra; Simanjuntak, Jefri Kemri Rodi Samuel; Br. Manurung, Agnes; Mutiarani, Mutiarani
International Journal of Mechanical Computational and Manufacturing Research Vol. 14 No. 2 (2025): August: Mechanical Computational And Manufacturing Research
Publisher : Trigin Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/computational.v14i2.269

Abstract

PT Philips Industries Batam is a company engaged in the manufacturing sector. One of the production processes carried out at PT Philips Industries Batam is the molding process. In the industrial world, the molding process has several types of defects that can affect product quality. The highest number of defects was identified to find the root cause using the Pareto and Fishbone diagram. This research aims to identify the factors causing the defect. Parameters on the Haitian MA 1200 machine were identified to determine the cause of the flow mark defect, thereby improving the quality level of the produced products. From five trials, the optimal parameter setting value was found in the fifth trial. The parameter settings consist of the start post: inject 1 with a value of 63, inject 2 with a value of 42, pressure: inject 1 with a value of 165, inject 2 with a value of 155. Pressure: hold 1 with a value of 55, hold 2 with a value of 45, and flow: hold 1 with a value of 18 and hold 2 with a value of 13. The flow mark defect on the Haitian MA 1200 machine effectively decreased by adjusting certain parameters.
Effect of welding on distortion changes in fillet joints with different sequences Cuana, Rona; Purba, Adi Syahputra; Putra, Gelby Anggara; Muvariz, Mufti Fathona; Amalia, Mutia
International Journal of Mechanical Computational and Manufacturing Research Vol. 14 No. 2 (2025): August: Mechanical Computational And Manufacturing Research
Publisher : Trigin Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/computational.v14i2.270

Abstract

Gas Metal Arc Welding (GMAW) is widely used in fabrication due to its efficiency and weld quality. This study examined the influence of welding sequence on distortion in 316 stainless steel fillet joints using the GMAW-pulsed process. Two techniques—back-step welding and string welding—were applied without strongbacks on 50 mm × 50 mm × 5 mm specimens, with 3–5 seconds between passes. Distortion was measured using a trigonometric calculation based on displacement. Results show that back-step welding consistently reduced angular distortion compared to string welding. For vertical plates, back-step yielded 14.53°, 13.59°, and 14.30°, versus 15.42°, 14.07°, and 14.76° for string welding. For horizontal plates, values were –3.93 mm, 4.12 mm, and –6.20 mm for back-step, compared to –10.15 mm, 1.91 mm, and –8.20 mm for string welding. Reduced distortion is attributed to intermittent bead placement, which limits heat accumulation and residual stress. These findings highlight the importance of sequence selection in minimizing distortion, particularly in precision-demanding sectors such as marine and automotive fabrication, and support the inclusion of back-step welding in welder training programs.
Pelatihan Pendamping Proses Produk Halal Ulfah, Nurul; Widiastuti, Hanifah; Thohari, Ahmad Hamim; Zaenuddin, Muhammad; Fajrin, Aulia; Purba, Adi Syahputra; Batubara, Ninda Hardina; Stefani, Windy; Hidayat, Imam; Wirawan, Adhitomo
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol. 5 No. 1 (2023): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v5i1.4865

Abstract

Halal products are products that are starting to be looked at by the market today. One of the goals of the Indonesian government, under BPJPH, in 2024 it is hoped that products, especially food and beverages in Indonesia, will already have halal certificates so that they can increase the attractiveness of pariwasata for Muslims around the world if they visit Indonesia. Based on the new legislation in 2014, namely law no. 33 of 2014 concerning Halal Product Guarantee, the halal certification process is carried out in synergy by various parties, one of which is the halal product guarantee organizing body (BPJPH). Halal product process assistance is a process of verifying and validating halal statements by business actors (self-declare). This activity serves to assist micro and small business actors in meeting product halal requirements. The purpose of this community service is to find out the level of understanding of prospective halal product process assistants in Batam City, service activities are carried out with 3 stages, namely surveys, socialization and training activities and the last stage is evaluation and reports. This activity is supported by BPJPH and Bank Indonesia as additional sponsors for activities to be carried out offline and online.
Pemberdayaan Pendidikan Vokasional: Pelatihan Mesin Laser cutting untuk Keterampilan Desain dan Fabrikasi di SMKN 9 Batam Leksonowati, Nur Fitria Pujo; Batubara, Ninda Hardina; Purba, Adi Syahputra; Cahyagi, Danang; Butar, Hendra Butar; Wijayanti, Ita; Manurung, Meilani Mandalena; Dzulfikar, Mohamad Alif; Stefani, Windy; Ulfah, Nurul; Aryswan, Adhe; Pamungkas, Nurman; Khollilurrahman, Kholillurrahman
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol. 6 No. 2 (2024): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v6i2.7016

Abstract

This community service initiative aims to enhance the skills of vocational school students in utilizing Laser cutting machines, serving as a platform for students in the Design and Visual Communication department of SMKN 9 Batam to fabricate products based on their own designs in preparation for the professional world. The participants involved in this initiative consist of 78 students from the aforementioned department. The community service program is structured through various stages, encompassing initiation, preparation, execution, activity review, and the compilation of a final report. Enthusiastically engaged, the participants, primarily from the Design and Visual Communication department, had previously focused their learning solely on the design phase. However, through this community service project, they actively participated in the fabrication process of designs they had created. Utilizing CAD applications, the designs were transformed into tangible products using acrylic as the raw material, ensuring that the resulting products align with the envisioned design. This initiative provides a valuable avenue for students to bridge the gap between design and fabrication, fostering practical skills crucial for their future endeavors in the workforce.
OPTIMALISASI SUMBER DAYA DAN TEKNOLOGI DALAM PROGRAM PEMBERDAYAAN MASYARAKAT DESA PULAU JEMARE Leksonowati, Nur Fitria Pujo; Pamungkas, Nurman; Butar, Hendra Butar; Aryswan, Adhe; Juangsa Putra, Lalu Giat; Fyona, Annisa; Nugroho, Cahyo Budi; Wibowo, Ari; Gemala, Mega; Ariyanto, Nugroho Pratomo; Arifin, Nurul Laili; Puspita, Roza; Sriyanto, Sriyanto; Dzulfiqar, Mohamad Alif; Stefani, Windy; Batubara, Ninda Hardina; Fajrin, Aulia; Purba, Adi Syahputra; Manurung, Meilani Mandhalena; Budiman, Budiman
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol. 7 No. 1 (2025): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v7i1.7105

Abstract

This paper discusses in depth the implementation of the Village Community Empowerment Program (P2MD) carried out on Jemare Island. The main focus of this program is the application of appropriate technology, which includes public street lighting and a water pump system, both powered by solar panels. The main objective of this initiative is to improve the quality of lighting and the provision of clean water on the island, two important aspects that are greatly needed by the local residents. Through a series of intensive observations and discussions with the local residents, the community service team was able to identify and solve various problems faced by the residents. As a result of these efforts, four street lights have been successfully installed and operated, and the water pump system has been successfully connected to the water pump machine and water storage tank. It is hoped that this initiative can have a significant positive impact on the quality of life of the residents of Jemare Island, support their business activities and economy, and provide a solution to the uneven distribution of electricity by the state electricity company (PLN). This solution is practical because it utilizes renewable energy in the form of sunlight, which is abundantly available on Jemare Island.
Perbandingan Perubahan Hardness Akibat Heat Treatment Pada Material AISI D2 Dengan Menggunakan Uji Rockwell   Purba, Adi Syahputra
Device Vol 14 No 2 (2024): November
Publisher : Fakultas Teknik dan Ilmu Komputer (FASTIKOM) UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/device.v14i2.7981

Abstract

PT X sebagai perusahaan yang berfokus pada mechanical component kedirgantaraan secara khusus dalam pembuatan seal, menghadapi tantangan dalam proses fabrikasi tooling yang terbuat dari logam AISI D2. Karakteristik logam AISI D2 memiliki tingkat kekerasan yang rendah, hal ini menjadi masalah karena saat tooling digunakan dalam pengerjaan seal, terjadi tekanan antara tooling 1 dan tooling 2. Sehingga, tooling harus melalui proses heat treatment untuk mencapai kekerasan sesuai standar yaitu ASTM E18. Maka dari itu tooling harus melalui proses heat treat untuk mencapai kekerasan yang standar. Mesin heat treatment merupakan salah satu proses memanaskan dan mendinginkan  suatu bahan untuk mendapatkan perubahan fasa (sturktur) guna meningkatkan kemampuan bahan tersebut sehingga bertambah daya guna teknik dari bahan tersebut. Tujuan penelitian ini untuk mengetahui proses heat treatment pada kekerasan AISI D2 dan membandingkan hasil kekerasan sebelum dan sesudah heat treatment dengan menggunakan uji Rockwell. Adapun hasil proses pengujian pada rockwell pada material AISI D2 sebelum proses heat treatment dengan nilai kekerasan awal rata- rata sebesar 21.57 HRC, selanjutnya pada proses heat treatment membutuhkan waktu 145 menit, setelah proses heat treatment selesai, tahap berikutnya melakukan pengujian rockwell dengan nilai rata – rata sebesar 61.11 HRC dengan nila perbandingan nilai rata – rata sebesar 183% dan standar perusahaan untuk minimum kekerasan dari material AISI D2 adalah sebesar 59 HRC.
Dampak Jumlah Plasticizer dalam Nilai Kekerasan Plastik PVC Manurung, Meilani Mandhalena; Leksonowati, Nur Fitria Pujo; Pamungkas, Nurman; Stefani, Windy; Batubara, Ninda Hardina; Purba, Adi Syahputra
JURNAL INTEGRASI Vol. 16 No. 2 (2024): Jurnal Integrasi - Oktober 2024
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v16i2.8495

Abstract

This paper provides a detailed investigation into the effects of Trioctyl Trimellitate (TOTM) plasticizer levels on the hardness of Polyvinyl Chloride (PVC) materials. The study reveals an inverse correlation between the level of TOTM plasticizer and the hardness of PVC, with an increase in TOTM levels leading to a decrease in hardness. This trend is consistent across various PVC samples, despite minor variations. The role of plasticizers in determining the physical and mechanical properties of PVC is further explored, emphasizing their function in reducing PVC's crystallinity, thereby producing a clearer and more flexible material. This research contributes to the understanding of how plasticizers can be used to tailor the properties of PVC, leading to the development of two distinct types of PVC: Flexible PVC, which contains a plasticizer, and Rigid PVC, which does not. The findings underscore the importance of plasticizers in material design and engineering, offering valuable insights for future applications.
Studi Pengaruh Nilai Availability Mesin Stamping Terhadap Jumlah Hasil Produksi Purba, Adi Syahputra; Leksonowati, Nur Fitria Pujo; Pamungkas, Nurman; Yuniarsih, Nidia; Batubara, Ninda Hardina; Prasetyo, Dimas
JURNAL INTEGRASI Vol. 16 No. 2 (2024): Jurnal Integrasi - Oktober 2024
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v16i2.8536

Abstract

This study aims to analyze the effect of machine availability on production output at PT XYZ. Data collection was conducted from January to March 2024, focusing on machine downtime, total operational hours, and weekly production output. The method used involves the calculation of Mean Time Between Failure (MTBF), Mean Time To Repair (MTTR), and availability, followed by a correlation analysis between availability and production output. The results show a strong correlation between availability and output, with a correlation value of 0.852. In Week 6 and Week 11, machine downtime caused availability to drop to 98.41% and 97.96%, respectively, which directly impacted production output. Based on these findings, it is recommended that PT XYZ improve preventive maintenance and minimize downtime to maintain optimal machine availability and maximize production output
Co-Authors Adhe Aryswan Agung Saputra Ahmad Farhan, Ahmad Amalia, Mutia Andaresta, Windy Ari Wibowo Ariyanto, Nugroho Pratomo Batubara, Ninda Hardina Budiman Budiman Butar, Hendra Butar Cahyagi, Danang Cahyo Budi Nugroho Cuana, Rona Dimas Prasetyo Dupan, Pandi Dzulfikar, Mohamad Alif Dzulfiqar, Mohamad Alif Erna Juwita Fajrin, Aulia Fyona, Annisa Gemala, Mega Hermawan, Muhammad Ghandy Razzaki Juangsa Putra, Lalu Giat Khollilurrahman, Kholillurrahman Leksonowati, Nur Fitria Pujo Leo Van Gunawan Manalu, Ari Angga Manurung, Agnes Br. Manurung, Meilani Mandalena Manurung, Meilani Mandhalena Marbun, Abri Andry Saresa Mufariz, Mufti Fathonah Muhammad Zaenuddin Mutiarani Mutiarani Muvariz, Mufti Fathona Muvariz, Mufti Fathonah Nidia Yuniarsih Nurul Fadilah, Nurul Nurul Laili Arifin, Nurul Laili Pamungkas, Nurman Pujo Leksonowati, Nur Fitria Puspita, Roza Putra, Gelby Anggara Ramadhan, M. Noviriandi Rangga Saputra Ritonga, Fatima Sari Rohmat, Abdul Simanjuntak, Jefri Kemri Rodi Samuel Sriyanto Sriyanto Stefani, Windy Thohari, Ahmad Hamim Ulfah, Nurul Widiastuti, Hanifah Wijayanti, Ita Wirawan, Adhitomo