Page 136 - tech fest 2025 ב״ש חוברת תקצירים

136
The Effect of Surface Roughness on Bonding Quality and Strength of Al6061 and Al1050 Alloys during Hot Plastic Deformation
ME-B-19
Eilon Israeli; elon9898@gmail.com Federico Canievsky; fedecanievsky@gmail.com
Advisors: Dr. Elad Priel1,2, ENG. Moti Kayat2 1SCE - Shamoon College of Engineering Be’er Sheva 2NRCN - Nuclear Research Center Negev
Multilayer aluminum components are widely used in advanced industries, such as aerospace, automotive, and aviation, due to their enhanced mechanical and physical properties. The bonding strength between layers directly influences component reliability and performance. This study investigates the effect of surface roughness on bonding quality and strength, comparing Al6061 and Al1050 specimens during a hot plastic deformation process. Four surface conditions were tested: as- received, rough, medium, and mirror-finish. These experiments were conducted at 400°C with a loading rate of 7.2 mm/min, using a combined furnace-compression system. Data analyses involved direct mechanical measurements and image processing. The influence of specimen surface conditions on the forces required for bonding and the resulting bonding strengths were examined.
Keywords: aluminum alloys, bonding strength, hot deformation, mechanical properties, surface roughness
Autonomous Navigation and Control Using “Robot Operating System 2”
ME-B-20
Ilya Leonov; fetleonov@gmail.com Yarin Abuhatzeria; yarin647@gmail.com
Advisor: Dr. Etan Fisher
SCE - Shamoon College of Engineering, Be’er-Sheva
ROS2 (“Robot Operating System 2”) is a framework enabling the modular development of robotic systems. This project implements ROS2 for autonomous navigation, focusing on path planning, mapping, and obstacle avoidance. We built a robotic car prototype to demonstrate applications relevant to logistics, smart homes, and autonomous vehicles. The robot successfully creates environmental maps, plans efficient paths, avoids obstacles, follows routes, and recognizes objects to make decisions. Results show that ROS2 reduces developmental complexity while maintaining high navigation performance. Our project provides a foundation for robotics development, demonstrating that autonomous systems can be created without specialized knowledge—offering valuable learning opportunities for future Engineers in both Industry and Academia.
Keywords: autonomous car, navigation, robotics, ROS