一些大型铸件，如大中型柴油机机体等的某些部位如果出现裂纹，虽然不影响使用，但如果不及时修复，随着时间推移，由于振动等原因裂纹会逐渐扩大直至损坏，影响机器的正常使用。波浪键扣合法是借助扣合连接件在槽内产生塑性变形，通过机械挤压的作用把机体损坏部位或裂纹重新 Some large castings, such as large and medium-sized diesel engine body and some parts of the body if there is a crack, although it does not affect the use, but if not repaired in time, due to vibration and other reasons the crack will gradually expand until damage, affecting the normal use of the machine . Wavy key buckle is the law by buckling the connector in the groove to produce plastic deformation, the role of mechanical compression damage to the body parts or cracks