Stress relief is a heat treatment process that reduces internal stresses in metals caused by machining, welding, or cold working. These stresses can lead to cracking, warping, or premature failure under load. By heating the material to a specific temperature and cooling it slowly, stress relief improves dimensional stability and mechanical performance. This process is essential for components used in high-pressure or high-temperature environments. Industries like aerospace, automotive, and construction rely on stress-relieved parts for safety and longevity. Ultimately, stress relief enhances the reliability and lifespan of metal products.