使用翻边工具鍛造图1那样的法兰盘只要两火就可以完成。这是我們学习本刊57年9期“法兰盘的胎模鍛造”后才开始采用的。过去鍛造这种鍛件是一火把坯料冲眼、扩孔鍛成环形,再把环形件放在胎模內用心子和漏盘两火燜成形;这样鍛造出来的鍛件内孔有折痕,而且加工留量挺大。可是使用翻边工具鍛造出來的鍛件內孔沒有折痕,很光滑;加 Forging the flange shown in Figure 1 using a burring tool can be done with just two fires. This is our study 57 years after the 9 issue of “flange die forging” before beginning to adopt. Forging this forging in the past is a fire blanks blanketed, reaming forging ring, and then put the ring on the tire mold with the heart and drain pan two fire stew forming; forged hole forging crease, and processing Keep big. However, the use of flanged forging tools out of the hole no crease, very smooth; plus