The combination of heat treatment and surface finishing processes plays a critical role in determining the overall performance of hot forging parts. Heat treatment enhances the internal mechanical properties of the parts, ensuring that they can withstand high stresses and perform reliably under demanding conditions. On the other hand, surface treatments improve the wear resistance, fatigue life, and corrosion resistance of the parts, ensuring that they remain functional and efficient over extended periods. Together, these processes enable hot forging parts to meet the rigorous demands of various industries, from automotive to heavy machinery, by providing components that are not only strong but also durable and resistant to environmental degradation.