喷丸强化工艺在我国机械行业生产中的应用已有几十年的历史。但近几年的调查研究表明，对于喷九强化机理的认识远未穷尽，采用喷九强化的零部件种类和数量尚有很大差距。因此，一方面应继续深入探讨在各种条件下的喷扎强化工艺技术另一方面应在机械行业生产中大力推广应用，取? Shot peening process in China’s machinery industry production applications for several decades. In recent years, however, investigations and studies have shown that there is still a long way to go before the nine-round enhancement of the mechanism and mechanism of spraying is far from exhausted. Therefore, on the one hand, we should continue to explore in depth the application of jet lapping technology under various conditions; on the other hand, we should vigorously promote the application in the machinery industry,