What is obtained with the forging waste heat normalizing and controlled cooling technique is the coarse stable structure in a 20CrMnTi gear, but its cutability is good.

余热正火和常规的正火处，经同样的工艺进行渗碳、淬火和回火处，试验证明：其渗层和部的组织、晶粒度及机械性能相同。