Topological Optimization of Brake Pedal for Metal Additive Manufacturing: A Case Study

Additive Manufacturing (AM) has become popular for rapid prototyping and it is presently widely used in different branches of industry because of its advantages such as freedom of design, mass customization, waste minimization and the ability to manufacture complex shape. AM is the process of making ۳D object from computer model data by depositing of material layer by layer. Topology optimization is iterative modifying the shape and optimizing material within a given designs space for load, boundary condition thus leading to weight reduction of components. Thus, to form lightweight components which have great advantage where energy consumption is minimal, topology optimization is used. Reducing weight and decreasing the material usage while keeping the product functions are the main challenges. Studies on the integration of the topology optimization and additive manufacturing, specifically mass reduction attract considerable attention. The topology optimization process is employed in this case study, to redesign a lightweight automotive brake pedal to show the potential of topology optimized design for additive manufacturing. As a result of this study ۵۴.۰۷% weight reduction was achieved in the total mass. The thermo- mechanical analysis for additive manufacturing showed that the part without topological optimization ۱۰۸ MPa of stress and ۱,۰۹۹ mm of displacement were obtained and after optimization they were ۱۹۶,۱ MPa and ۱,۲۹۵ mm, respectively.

Keywords:

Additive Manufacturing , analysis , Light Weight , Topological Optimization