The hardness-checking tools are essential tools in engineering study, especially in the mechanical and manufacturing process. The field problem in Akebono Brake Astra Indonesia is the utilization of more manual tools to achieve product demands. Considering those issues, the development of a modified hardness checking tool from manual operation to automatic operation. For more effectively, it uses automatic operation in time and savings for other manual tools. The automated tool applies the 3-axes system mechanism using Festo linear actuator with the servo motor. The testing capacity of automatic devices is equal to more manual devices. The frame of the auto-checking hardness machine is assessed by applying load variations. This paper provides a comparison of various aluminum frame types based on different tensile strength and cross-sectional area values. The value of displacement and maximum stress depends on the ultimate tensile strength properties and cross-sectional area of the frame.
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Caesar et al. (2020) studied this question.