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All Journal Inventa: Journal of Science, Technology, and Innovation
Sriyanto
Sekolah Tinggi Teknologi Warga Surakarta
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Desain dan Pembuatan Tungku Peleburan Logam Berbahan Bakar Gas Menggunakan Teknik Las Busur Logam Terlindung (SMAW) untuk Aplikasi Pengecoran Skala Kecil Wisnu Murti; Sriyanto
Journal of Science, Technology, and Innovation Vol 1 No 1 (2025): August: Inventa: Journal of Science, Technology, and Innovation
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/k7yzhy06

Abstract

This study presents the design, fabrication, and performance evaluation of a gas-fueled metal melting furnace developed using the Shielded Metal Arc Welding (SMAW) technique for small-scale foundries. The objective was to create an energy-efficient and environmentally friendly alternative to traditional solid-fuel furnaces commonly used in micro-industrial workshops. Fabrication employed locally available mild steel and refractory materials to ensure low production costs and accessibility. Experimental trials using aluminum revealed that the prototype achieved core melting temperatures above 900 °C and an average gas-to-metal ratio of 0.35 kg/kg, with potential optimization to 0.25 kg/kg. The furnace demonstrated approximately 22% thermal efficiency, exceeding conventional designs by 4%. Cleaner combustion reduced CO₂ emissions by 267 kg per ton of molten metal, while metallurgical tests indicated a 38% reduction in inclusion size and improved casting uniformity. The results confirm that SMAW-based fabrication can yield structurally reliable, cost-effective, and energy-efficient furnaces suitable for community-scale metal industries. The study supports sustainable industrial practices by promoting local manufacturing capabilities and aligning with energy transition goals.
Co-Authors Wisnu Murti