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All Journal Jurnal Karya Pengabdian Teknik Mesin Energy, Materials and Product Design
Sujita
University of Mataram
Energy Engineering Industrial & Manufacturing Engineering

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PENGARUH PROSES PACK NITRIDING TERHADAP ANGKA KEKERASAN PERMUKAAN, KEULETAN DAN STRUKTUR MIKRO PADA BAJA SS 400 Sujita; Pandri Pandiatmi; Fadly Bukhari
Energy, Materials and Product Design Vol. 2 No. 2 (2023): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

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Abstract

The pack nitriding process is a process of increasing the surface hardness of steel by using nitrogen with the help of organic compounds as a nitrogen source in the process. The processed steel is put into a vessel which is usually made of ceramic, glass or aluminum along with a compound used as a nitrogen source. During heating,The organic compounds used in the analysis process are generally stable at temperatures up to 570 oC and removal times of 2 to 16 hours. The purpose of the pack nitriding process is to increase the surface hardness while remaining ductile inside. In this study, nitrogen was added using a pack nitriding process after which it was quenched using water. The elimination times used were 4 and 6 hours with temperature variations of 560°C, 580°C and 600°C and presenting nitrogen for the 150 gram pack nitriding process. The highest hardness value was obtained at 580 °C with a surface hardness value of 234.84 kg/mm2 with 4 hours of removal time. And the highest impact value was shown by the specimen without treatment of 158.3 Joules. The results of testing the chemical composition of the specimens without treatment and after the pack nitriding process showed that there was an increase in the nitrogen element.
Aplikasi Proses Annealing Pada Kelompok Usaha Pandai Besi Desa Getap Sujita; Pandri Pandiatmi; Rudy Sutanto; Sinarep; I Wayan Joniarta
JURNAL KARYA PENGABDIAN TEKNIK MESIN Vol. 8 No. 2 (2026): Oktober, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jkp.v8i2.264

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan kualitas produk besi dan efisiensi kerja pada Kelompok usaha pandai besi di Desa Getap, Kecamatan Sandubaya, Kodya Mataram melalui penerapan proses perlakuan panas annealing. Masalah yang dihadapi mitra adalah karakteristik bahan baku berupa baja karbon tinggi JIS S65C yang angka kekerasannya sangat tinggi mudah rapuh/getas pada pembentukan sehingga kualitas produk yang rendah. Oleh karenanya perlu teknologi tepat guna berupa proses perlakuan panas annealing yang bertujuan menurunkan angka kekerasan, meningkatkan keuletan. Metode yang diterapkan meliputi pelatihan teori dan praktik annealing, demonstrasi pengaturan suhu dan waktu pemanasan, serta pendampingan langsung selama proses produksi. Hasil pengabdian menunjukkan peningkatan keuletan baja karbon tinggi JIS S65C, pengurangan cacat pada produk, serta meningkatnya pemahaman dan keterampilan anggota kelompok dalam menerapkan teknik annealing. Tingkat kepuasan mitra terhadap kegiatan ini tergolong tinggi, dan penerapan metode ini berpotensi meningkatkan produktivitas serta kualitas produk secara berkelanjutan.
Co-Authors Fadly Bukhari I Wayan Joniarta Pandri Pandiatmi Rudy Sutanto Sinarep