Deformation of the spring after clamping and forming is a critical issue in the manufacturing process. As an elastic component, the spring is more sensitive to various factors that affect its precision compared to rigid parts. This complexity leads to unique challenges in the machining process. One of the main causes of reduced accuracy is the unavoidable deformation that occurs during clamping. This deformation can lead to a loss of dimensional accuracy. Additionally, the spring may deform after forming or during heat treatment, further affecting its precision. Therefore, minimizing deformation during clamping, after forming, and during heat treatment is essential for achieving high-quality springs. The manufacturing process of rectangular springs typically involves heating the steel before shaping it through appropriate processing methods. While winding is a common technique, it often requires specialized equipment and may not always meet the required dimensional accuracy. For this reason, bar processing is preferred as it offers better control over dimensions and quality. The process must be carefully planned to ensure that each step contributes to the final product’s precision. Heat treatment plays a vital role in eliminating internal stresses and improving material stability. During the manufacturing of rectangular springs, multiple turning and grinding operations are performed, and heat treatment is strategically placed in the middle of the process to relieve stresses caused by machining. Proper allowance allocation during each operation is important to maintain dimensional accuracy. Through heat treatment, the microstructure of the spring is improved, ensuring that hardness and residual stress meet the design specifications. A well-designed and practical tire clamp is essential for maintaining the shape of the spring during both machining and heat treatment. During turning and grinding, the clamp prevents deformation, while during heat treatment, it helps correct any distortion that may occur. Additionally, the parallel head of the spring requires a spiral plug to manage the gap between the ends, ensuring proper alignment and functionality. Ensuring the precision of the spring is crucial for its reliable performance. After relaxation treatment, the inner and outer diameters are not ground, which allows for residual deformation to stabilize. This approach ensures that the spring maintains straightness, perpendicularity, and parallelism. Achieving a straightness error of less than 0.15 mm, a verticality error of less than 0.15 mm, and a parallelism error of less than 0.10 mm is challenging but achievable through comprehensive process control. Understanding the mechanism behind spring deformation is key to improving its accuracy. Due to its slender structure, the spring naturally has some straightness errors. These errors contribute to parallelism and perpendicularity issues at the end faces. Moreover, the combination of axis linearity and end face parallelism significantly affects the verticality of the spring. In fact, the verticality error can be several times greater than the straightness error, making it one of the most difficult parameters to control. To address these challenges, a special jig known as a sleeve-type fixture is designed for grinding both ends of the spring after heat treatment. Three key points must be ensured: first, the spring should be ground in a free state with axial straightness less than 0.15 mm; second, both ends should be ground using a single reference point; and third, the grinding process must prevent any damage to the edges of the spring. This meticulous approach ensures that the final product meets the highest standards of precision and performance. TS HARDWARE proudly offers a wide variety of stainless steel bolts in several sizes and styles such as hex head, socket style, carriage, and lag bolts. Most of our inventory is available in both type 18-8 and 316 stainless steel bolts. Type 18-8 are standard grade, while 316 is a superior type often referred to as marine-grade steel. It`s known for its durability against harsh conditions that cause rust or corrosion. While 18-8 and 316 stainless steel bolts have a similar strength composition, restaurants, hospitals, and water treatment facilities are best served by marine-grade products. Checkout our unique collection below, and contact us with any questions or concerns. Our highly-trained staff can help you! Can`t find what you`re looking for? Check out our stainless steel screws for more options. Stainless Steel Bolt,Stainless Steel Eye Bolts,Stainless Steel U Bolts,Stainless Steel Nuts And Bolts Taizhou TS HARDWARE Co., Ltd , https://www.shuwengroup.com