Steel Work Design and Analysis of a Manual Lawn Mower

Abstract: This work presented the design and construction of a manually powered lawn mower as well as the stress analysis of the blade. The solid model of the lawn mower design was done using Solid works software. The materials utilized for the construction were selected following standard material selection processes. The required cutting speed was achieved by proper gear arrangement which transferred the rational motion of the wheels to the blade, consequently increasing the speed by about 300%. The average cutting capacity of the lawn mower is 62.48 m2/hr. The stress analysis on the blade using the simulation tool of the solid works software gave a maximum von mises stress that is 252 times less than the yield strength of the blade material. Also, a maximum deformation of 0.00271mm obtained from the analysis is quite infinitesimal hence, the blade can withstand both stress and deformation resulting from the cutting operation. Keywords: grass, lawn mower, blade, cutting speed, cutting capacity. Title: Steel Work Design and Analysis of a Manual Lawn Mower Author: Okolie Paul C, Sylvester Emeka Abonyi, Okolie Uchenna Onyebuchi, Chikelue Edward Ochiagha International Journal of Novel Research in Electrical and Mechanical Engineering ISSN 2394-9678 Vol. 11, Issue 1, September 2023 - August 2024 Page No: 14-23 Novelty Journals Website: www.noveltyjournals.com Published Date: 22-September-2023 DOI: https://doi.org/10.5281/zenodo.8369633 Paper Download Link (Source) https://www.noveltyjournals.com/upload/paper/Steel%20Work%20Design%20and%20Analysis-22092023-4.pdfInternational Journal of Novel Research in Electrical and Mechanical Engineering, ISSN 2394-9678, Novelty Journals, Website: www.noveltyjournals.co

Thermo-Mechanical Properties and Microstructural Characterization of Welded Steel Plates

<p><strong>Abstract:</strong> The study focused on thermo-mechanical properties of steel weld. A mild steel stock selected from the SAE10XX class was used to fabricate four pairs of rectangular plates, each measuring 200 mm × 100 mm × 6 mm. Mechanical tests were conducted on the welded samples and their microstructures analysed using scanning electron microscope. The results suggest that a good combination of the operational variables guarantees stable welding operation which in turn assists in achieving a quality welded joint. Hence, from the results it is recommended that maintaining low but sufficient high welding power helps to minimize excessive temperature rise in the base metal and improves stress distribution along the welding line, which in turn mitigates degradation of mechanical properties. The result also showed that a coarse structure is formed in the fusion zone while fine structure is formed in the heat affected region.</p><p><strong>Keywords:</strong> Steel, Weld joint, Mechanical properties, Heat transfer, Welding parameters, Thermal analysis, Temperature distribution.</p><p><strong>Title:</strong> Thermo-Mechanical Properties and Microstructural Characterization of Welded Steel Plates</p><p><strong>Author:</strong> Okolie Paul Chukwulozie, Chidume Nnamdi Nwambu, Obiora Nnaemeka Ezenwa, Okolie Uchenna Onyebuchi, Chikelue Edward Ochiagha</p><p><strong>International Journal of Novel Research in Engineering and Science</strong></p><p><strong>ISSN 2394-7349</strong></p><p><strong>Vol. 10, Issue 2, September 2023 - February 2024</strong></p><p><strong>Page No: 60-64</strong></p><p><strong>Novelty Journals</strong></p><p><strong>Website: www.noveltyjournals.com</strong></p><p><strong>Published Date: 13-November-2023</strong></p><p><strong>DOI: </strong><a href="https://doi.org/10.5281/zenodo.10118218"><strong>https://doi.org/10.5281/zenodo.10118218</strong></a></p><p><strong>Paper Download Link (Source)</strong></p><p><a href="https://www.noveltyjournals.com/upload/paper/Thermo-Mechanical%20Properties-13112023-3.pdf"><strong>https://www.noveltyjournals.com/upload/paper/Thermo-Mechanical%20Properties-13112023-3.pdf</strong></a></p&gt