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    Öğe
    A comparative study on the material selection of a spot welding robotic arm
    (Editura Politechnica, 2023) Hameed, Abdulhameed Muneam; Ay, Serdar
    Robotic arms have been used in the various sectors of the manufacturing industry over recent decades due to their many advantages such as high precision and cost-effectiveness. To minimize human errors and speed up design processes, modeling and simulation tools are frequently employed in the design and optimization phases. One of the goals of the design phase is to determine the material type of the robot arm to survive varying loads applying stress analysis. In this paper, a spot welding robotic arm is designed using three different materials such as copper alloy, aluminum, and titanium and its static structure is analyzed in case of the spot welding (SW) robotic arm exposed to various loads such as 3900 N, 4000 N, 4400 N, and 5000 N that the actuators are applied to the upper tip of the spot welding gun by using ANSYS WORKBENCH based on measurements of maximum shear elastic strain, equivalent elastic strain, equivalent stress, and total deformation. The results obtained for different materials exposed to various forces are compared with each other. The overall deformation and maximum shear elastic strain of the robotic arm for spot welding appears to grow as the load on the spot-welding tool rises. The total deformation of the robotic arm for spot welding in the case of working on copper alloy material is the smallest compared to working on aluminum and titanium material from the total deformation viewpoint.
  • Küçük Resim
    Öğe
    Design and analysis of a novel robotic arm for high precision micro friction stir welding
    (Altınbaş Üniversitesi, 2022) Alghloom, Azhar Majid Qasim; Ay, Serdar
    The usage of industrial robots in manufacturing industries has revolutionized the traditional manufacturing process into more diverse and sustainable modern manufacturing processes. This paper presents the design and analysis of a 6-DOF robotic arm, which will perform a highly précised micro friction stir welding process. Friction stir welding is a technology that is constantly evolving. It has played a vital role in connecting metals in numerous sectors since its invention in 1991, and one of the outcomes of its development is micro friction stir welding, which was invented in 2004. There are numerous advantages that a designed robotic arm possesses over other traditional micro friction stir welding machines, which include high precision, sustainability, flexibility, time, and cost-effectiveness, along with a small operation area. The robotic arm is designed in two phases; the first stage is a design of links and revolute joints, respectively, and high-speed motor selection for the end effector to operate at high torques with required precision and accuracy. In the second phase, the designed model was analyzed using ANSYS software. In this phase, the transient and structural analyses are performed to analyze the performance of the robotic arm under various conditions.