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随着汽车工业的快速发展,老车型不断更新,各种新车型不断出现,且随着人们对环保与能源意识的增强,节能减排成为汽车制造商开发新车型的重要关注点,汽车设计和制造开始向轻量化方向发展。与此相应,许多汽车零部件在结构上发生很大变化,汽车锻件逐渐开始向轻量化、净成形方面发展。许多锻件通过改变结构和材料达到设计要求,一些以往通过在锻件上设计机械加工余量并通过后续加工保证形状和尺寸的工艺目前已经逐渐通过锻造直接获
With the rapid development of the automobile industry, the old models are continuously updated and various new models are constantly emerging. As people’s awareness of environmental protection and energy increase, energy conservation and emission reduction become important concerns for the automobile manufacturers in developing new models. Automotive design and Manufacturing began to develop in the direction of lightweight. Correspondingly, many automotive components have undergone great structural changes, and automotive forgings have gradually started to develop in light weight and net shape. Many forgings meet the design requirements by changing the structure and materials. Some of the processes that have previously been designed by forging allowance to be machined and for subsequent shape and size assurance have been gradually