hot upset forging

例句：

1. 1. The hot upset forging process is crucial in the manufacturing of high-strength steel parts.
   热锻成型过程在制造高强度钢零件中至关重要。
2. 2. This innovative technique has greatly improved the efficiency of hot upset forging.
   这种创新技术大大提高了热锻的效率。
3. 3. During the hot upset forging stage, the metal undergoes significant plastic deformation.
   在热锻成型阶段，金属经历显著的塑性变形。