Faculty of Mechanical Engineering
Permanent URI for this communityhttps://repository.ukim.mk/handle/20.500.12188/13
Browse
6 results
Search Results
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, Influence of Edge Surface Quality on Hybrid Laser Arc Welding of Structural Steel S355J2(2024); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Influence of Edge Surface Quality on Hybrid Laser Arc Welding of Structural Steel S355J2(2024); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, INFLUENCE OF THE METAL CORED AND FLUX CORED WIRE ON THE STRUCTURAL STEEL WELDED JOINTS(2023); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Experimental Analysis of the Influence of Process Parameters on Cylindricity in Turning Process(University Ss. Cyril and Methodius in Skopje, 2025-05-30); Cylindrical parts produced through turning often demand certain form tolerances such as cylindricity to ensure proper function, reliability, and performance. As manufacturing shifts toward higher accuracy and sustainability, understanding how process parameters influence cylindricity becomes increasingly essential. This study presents an experimental analysis of the influence of three fundamental cutting parameters – depth of cut, feed rate, and spindle speed – on the cylindricity of parts produced under dry turning conditions. The experiments were performed on steel E335 using a full-factorial design with parameters varied at two levels. Cylindricity was measured on each machined part and statistically analyzed to evaluate individual effects and interactions of the parameters. Results show that all three parameters significantly affect cylindricity, with spindle speed exhibiting the highest statistical influence. Higher spindle speeds were associated with improved cylindricity, while increased feed rate and depth of cut tended to degrade form accuracy. A regression model was fitted to the experimental data to quantify the influence of each parameter and predict cylindricity actions based on cutting conditions. The findings align with recent literature and offer practical insights for optimizing dry turning operations to achieve higher geometric precision. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Effect of laser beam and arc power on weld bead geometry in hybrid laser arc welding of structural steel(Centre for Evaluation in Education and Science (CEON/CEES), 2024); ; Stankoski, Marko<jats:p>Hybrid Laser Arc Welding - HLAW combines the advantages of Laser Beam Welding - LBW and Gas Metal Arc Welding - GMAW, resulting in a welding process of high welding speed, less heat input, deeper penetration into the welding material, and increased process efficiency compared to conventional welding processes. The merger of the two heat sources, laser beam and arc, in a single welding process leads to a weld joint characterized by two zones, an upper-wide zone or laser-arc zone and a lower narrow zone or laser zone. This study investigates the impact of laser beam and arc currents on the weld bead geometry in the arcleading hybrid laser arc welding process of 12 (mm) structural steel. Through systematic experimentation, single-pass hybrid laser arc welds were performed in a butt joint configuration with zero-gap at various power settings, laser beam power range 10 - 13 (kW), and arc current range 340 - 400 (A) to determine their influence on weld bead width, height, and depth. The quality level of the hybrid laser arc welds was evaluated according to ISO 12932. The results indicate that increasing laser beam power enhances weld bead depth and narrows bead width, while the arc current is directly related to weld bead height and overall smoothness. The findings show that weld bead geometry is a function of laser beam and arc power ratio, an increased ratio leads to a narrow weld bead and vice versa.</jats:p> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Effect of laser beam and arc power on weld bead geometry in Hybrid Laser Arc Welding of structural steel(Serbian Welding Society, 2024); ; Stankoski, MarkoHybrid Laser Arc Welding – HLAW combines the advantages of Laser Beam Welding - LBW and Gas Metal Arc Welding - GMAW, resulting in a welding process of high welding speed, less heat input, deeper penetration into the welding material, and increased process efficiency compared to conventional welding processes. The merger of the two heat sources, laser beam and arc, in a single welding process leads to a weld joint characterized by two zones, an upper-wide zone or laser-arc zone and a lower narrow zone or laser zone. This study investigates the impact of laser beam and arc currents on the weld bead geometry in the arcleading hybrid laser arc welding process of 12 (mm) structural steel. Through systematic experimentation, single-pass hybrid laser arc welds were performed in a butt joint configuration with zero-gap at various power settings, laser beam power range 10 - 13 (kW), and arc current range 340 - 400 (A) to determine their influence on weld bead width, height, and depth. The quality level of the hybrid laser arc welds was evaluated according to ISO 12932.