根据纵向摇臂技术条件要求，确定了等温模锻工艺为最佳成形工艺方案。介绍了在５×１０４ｋＮ液压机上实现等温模锻时的模具结构、变形温度（４５０℃）、应变速率（９．６×１０－４ｓ－１～１．２×１０－２ｓ－１）及较佳的坯料形状、尺寸及润滑剂。用等温模锻工艺研制的锻件冶金质量符合其技术条件要求 According to the longitudinal rocker technical requirements, the isothermal forging process is determined as the best forming process. The structure of the mold during isothermal forging in a 5 × 104kN hydraulic press is introduced. The deformation temperature (450 ℃), strain rate (9.6 × 10-4s-1 ~ 1.2 × 10-2s-1) Billet shape, size and lubricant. Forging metallurgy quality developed by isothermal die forging process meets the technical requirements