Thermal Fatigue Thermal fatigue is the progressive degradation of a 3D printed part due to repeated thermal cycling, leading to cracking, warping, or delamination. It is caused by thermal expansion and contraction, residual stresses, and material fatigue. High-temperature polymers, metals, and composite filaments are prone to thermal fatigue under extreme or fluctuating temperatures. Proper design, print orientation, and reinforcement strategies enhance thermal resistance. Advanced testing equipment evaluates thermal fatigue behavior for performance-critical applications. Managing thermal fatigue ensures durability, reliability, and safety for functional parts in aerospace, automotive, and industrial environments. |