变截面板簧喷丸新工艺的研究

Research of New Shot Peening TechnologyDealing with Taper Leaf Spring

对板簧工作条件进行了分析，指出应力腐蚀和微动磨损是影响板簧疲劳寿命的重要因素。通过控制喷丸工艺参数，寻求理想的残余压应力值和残余压应力层深度。为达到这双重目的，提出在变截面板簧领域采用二次喷丸的强化工艺，在提高板簧疲劳寿命等方面具有较高的实用价值。

Based on studying the working condition of leaf spring,there are two important factors influencing on fatigue strength.By improving and optimizing some parameters of shot peening technology,we can acquire desired residual compressive stress and its depth below surface.At the same time,a new shot peening method—“dual shot” is pulled out.