一种新的、用于气阀弹簧的最佳应力加工方法,目前在专业界称为著名的“Scher-del-SOF”弹簧加工方法。用传统工艺制造的气阀弹簧,即使用最佳的方法也不可避免地会有较大的残余拉伸内应力。此外,采用类似于喷丸处理这种表面加工技术,弹簧在使用中可减少大约300百万次负载循环。但是,到目前为止,弹簧制造工艺的重大改进还几乎不可能。SOF型气阀的改进,通过对弹簧残余拉伸内应力的优化,提高了气阀弹簧的疲劳强度。同时,采用这种加工方式喷丸处理的作用是进一步优化了。经过这种工艺加工的弹簧,其有害的残余内应力比传统工艺生产的弹簧要小,而且能够导致弹簧的 A new, optimal method of stressing valve springs is now known in the industry as the well-known “Scher-del-SOF” spring process. Valve springs made with conventional processes, even with the best methods, will inevitably have greater residual tensile internal stresses. In addition, with a surface-peening technique similar to shot peening, the spring reduces the use of approximately 300 million load cycles. However, so far, significant improvements in the spring manufacturing process are almost impossible. SOF-type valve to improve, through the residual stress of spring residual stress optimization, improve the fatigue strength of the valve spring. At the same time, the use of this processing method shot peening is further optimized. After this process of processing the spring, the harmful residual stress than the traditional process to produce the spring is smaller, and can lead to the spring