Yapay kalça ekleminin femur gövdesinin dövmesinin sonlu elemanlar analizleri

Nowadays, total hip arthroplasty is increasing, and an improved artificial hip joint system becomes more needed. The femoral stem is a critical part of the system that upholds the most of stress resulting from the human body weight and movement. Many casting and forming methods are used in the manufacturing of the femoral stem and hot forging is one of the forming processes used to produce titanium-based femoral stem. The effect of the different forging temperatures on the forging of the femoral stem is studied in this thesis and two preforms are used to conduct the final step of the forging. The numerical study was conducted using finite element modeling for an isothermal hot forging for temperatures ranging from (700 ℃ to 1000 ℃). In the study, analyses were conducted to measure the press load and the mapping of the effective stress in the forged part, and the die-filling rate was evaluated. It was observed that the model provided a reliable forged product.