For example, hot-forming of the quenchable boron-alloy steel 22MnB5 can produce complex, crash-resistant parts such as bumpers and pillars with ultrahigh strength, minimum springback, and reduced sheet thickness (see Figure 2).

• 用硼钢热冲压和模具冷却的工艺出现在90年代后期，起初是用于制造一些相对简单的汽车部件，如门梁和保险杠。