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All Journal Rotasi Teknik dan Ilmu Komputer Rekayasa Mesin FLYWHEEL : Jurnal Teknik Mesin Untirta Majalah Ilmiah MOMENTUM Jurnal Rekayasa Mesin E-Dimas: Jurnal Pengabdian kepada Masyarakat Journal of Geoscience, Engineering, Environment, and Technology Machine : Jurnal Teknik Mesin SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Astonjadro JURNAL KAJIAN TEKNIK MESIN Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Jurnal Abdi Insani Jurnal Konversi Energi dan Manufaktur Jurnal Pendidikan Teknik Mesin Undiksha Jurnal Pengabdian Kepada Masyarakat Jurnal Abdi Masyarakat Indonesia Jurnal Abdimas Kartika Wijayakusuma Prosiding Konferensi Nasional PKM-CSR International Journal of Community Service (IJCS) Jurnal Pengabdian Masyarakat Singa Podium (JPMSIPO) Jurnal Sains & Teknologi Fakultas Teknik Universitas Darma Persada Journal of Engineering and Science Application Prosiding SNTTM Metalik: Jurnal Manufaktur, Energi, Material Teknik
Didik Sugiyanto
Program Studi Teknik Mesin, Fakultas Teknik, Universitas Darma Persada, Indonesia
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Limitations of Interlocking Features in Rotary Friction Welding (RFW) of 3D-printed PLA Fauzan Al Fathurrahman; Fathur Rahman Naufal Santoso; Erwin; Didik Sugiyanto; Juan Pratama
Jurnal Rekayasa Mesin Vol. 21 No. 1 (2026): Volume 21, Nomor 1, April 2026
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v21i1.7419

Abstract

The limited build volume of fused deposition modeling (FDM) often necessitates the use of joining methods for larger components. However, the effectiveness of interlocking features in the RFW of 3D-printed polymers remains unclear. This study investigates the limitations of interlocking features in RFW of polylactic acid (PLA) by evaluating the effect of male-female geometry on the joint performance. The results show that all interlocked RFW joints exhibit significantly reduced tensile strength, reaching only approximately 30% of the control samples, accompanied by decreased ductility. Despite variations in the interlock geometry, no significant improvement in joint performance was observed. Failure analysis indicates that the excessive weld flash accumulation within the interlocking region generates internal pressure, which restricts material flow and promotes crack initiation. This leads to localized plastic deformation followed by brittle failure at the joint interface. These findings demonstrate that the interlocking geometry does not necessarily enhance joint quality in RFW of 3D-printed PLA and may introduce inherent limitations if not properly designed. This study highlights the critical role of material flow and geometric constraints in governing joint performance, emphasizing the need for optimized interlock design and process control in thermoplastic friction welding.
Sistem Kontrol PLC dan Inverter pada Vacuum Mesin Industri Wisnu Budiarjo; Didik Sugiyanto
Journal of Engineering and Science Application Vol. 3 No. 2 (2026): Mei-Oktober
Publisher : Institute Of Advanced Knowledge and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69693/jesa.v3i2.42

Abstract

Perkembangan teknologi otomasi industri menuntut adanya sistem kontrol yang andal, efisien, dan mudah dioperasikan untuk mendukung proses produksi. Salah satu penerapan otomasi tersebut adalah penggunaan Programmable Logic Controller (PLC) dan inverter pada mesin vacuum industri. PLC berfungsi sebagai pengendali utama yang mengatur logika kerja sistem, sedangkan inverter berperan dalam mengatur kecepatan dan torsi motor listrik agar sesuai dengan kebutuhan proses. Laporan kerja praktik ini membahas sistem kontrol PLC dan inverter pada vacuum mesin industri di PT. DNP Indonesia. Metode yang digunakan dalam penyusunan laporan ini meliputi observasi langsung di lapangan, studi literatur, serta konsultasi dan bimbingan dengan pembimbing lapangan dan dosen pembimbing. Pembahasan difokuskan pada prinsip kerja PLC, prinsip kerja inverter, sistem mesin vacuum, serta alur kerja sistem kontrol yang diterapkan. Hasil dari kegiatan kerja praktik ini menunjukkan bahwa penerapan sistem kontrol PLC dan inverter mampu meningkatkan efisiensi, kestabilan, dan keandalan pengoperasian mesin vacuum industri. Selain itu, penggunaan inverter memungkinkan pengaturan kecepatan motor secara fleksibel sehingga dapat menghemat energi dan memperpanjang umur peralatan. Dengan demikian, sistem kontrol PLC dan inverter sangat berperan penting dalam menunjang kelancaran dan efektivitas proses produksi di PT. DNP Indonesia
Co-Authors -, Nopryandi . Zulfahriza Aep Saeful Uyun Aep Saeful Uyun Aep Saepul Uyun Aep Saipul Uyun Agil Saputro Agus Munandar Aisa Aulia Andriansyah, Septian Anggara, Ardhito Yogie Antasti, Erico Ario Kurnianto As'yari Asy'ari Daryus Asyari Asyari Darius Asyari Daryus, Asyari Asyari, Asyari Atik Kurnianto Aulia, Aisa Bagas, Stefanus Besus Dwi Putranto Budhi Susetyo, Ferry Budi Sumartono Daryus, Asy'ari Dewi Dyah Maharani, Maya Djabumir, Sendi Setiawan Dwiki Novandi Dzul Mujahid Jihad Egar Ruli Anmar Erwin Erwin Erwin Erwin Erwin Fahmi Aldi Fandikurnia, Ade Fathur Rahman Naufal Santoso Fauzan Al Fathurrahman Ferry Yunus Fitriani Fitriani Gunawan Gunawan Handayani, Diah Kusuma Handi Hasan Basri hasana, Nur Hernando Christian Herry Susanto Herry Susanto Husen Asbanu Ibnu Rusydy Ibrahim, Riki Firmandha Imam Munandar Indi Arzela Hutabarat Jamaluddin Purba Joko Mai Juan Pratama Kadlina Kadlina Kadlina Latifa, Adila Lestari, Putri Winda Lono Satrio Maratis, Jerry Muhammad Ikhsan Muhammad Ilham Ramdan Muhammad Syahrullah Muksin Mumpuni Ngesti Rahaju, Sri Naomi Melva Mariana Sirait Ngesti Rahaju, Sri Mumpuni Nofendri, Yos Nopryandi Novendri, Yos Noverdo Mayanda Novianto, Bangun Rahaju, Sri Mumpuni Ngesti Raihan Maulana Resma Adi Pangestu Ricky Setiawan Rio Ferdiansyah Rizky Nugroho Saban, Muhamad Zaki Saputra, Ganang Arya Sholichan, Sholichan Siregar, Rolan Siswanto, Muhamad Helmi Sukamto, Ika Sumiyarsi Syamsu Marlin Taopik, Angga Trisna Ardi Wiradinata Uci Sulandari Warni Asnita Wicaksono, Enggar Darmawan Wisnu Budiarjo yefri chan Yendi Esye Yusrizal