Nitrided piston rod
● Product introduction
When the piston rod is processed, the middle rod part needs to be nitrided. For example, the hardness of the middle rod part before nitriding is 210-220hv, and the hardness after nitriding is 400-410hv, and the hardness has been doubled. After nitriding, there will be a margin of 0.15mm in the rod part in the middle of the piston rod, and the rod part in the middle of the piston rod needs to be machined to φ22.15 (+0,-0.03). 60min, the lower production efficiency cannot meet the current mass production. At present, most efficient turning processes are used, but during turning, due to the increased hardness of the piston rod, the insert is prone to chipping and yielding when turning the rod. Once the yielding tool occurs, the size cannot be guaranteed, and the damage to the insert increases. The direct economic cost of purchasing a tool.