汽车制造中冲压工艺的新发展外文翻译-汽车设计(编辑修改稿)

汽车制造中冲压工艺的新发展外文翻译-汽车设计(编辑修改稿)内容摘要：

onal attempt method, (3) to implement the mould design manufacture serial manner by the past to parallel transformation, (4) realized process monitoring and equipment maintenance from passive response to scientific prediction type transformation. 2MM project and and submillimeter stamping two project has successively is plete, and the three major automobile manufacturing pany popularization and application, and achieved many beneficial results, stamping cost greatly decreased, obtain the growing economic benefit of social benefit, and gradually applied to other countries. Special stamping technology Modern automotive stamping technology requirements towards structure is plex, block size increases, related edge parts more, carrying capacity is large and internal limit strictly etc direction. This requirement and promote special stamping technology such as hydraulic pressure forming, precision forming, explosive forming and spinning forming, no die forming, laser forming and electromagic forming technology development. Limited to this paper length, here basically introduces pressure inside the forming and electromagic forming two technologies. Modern automotive stamping technology requirements towards structure is plex, block size increases, related edge parts more, carrying capacity is large and internal limit strictly etc direction. This requirement and promote special stamping technology such as hydraulic pressure forming, precision forming, explosive forming and spinning forming, no die forming, laser forming and electromagic forming technology development. Limited to this paper length, here basically introduces pressure inside the forming and electromagic forming two technologies. The hydraulic or injection of the forming technology of elastic postures, its highpressure forming process generally includes: (1) effective media such as ice expansion iscm make the internal pressure pressed into the penalty extremely slow growth process, (2) fluid static penalty bone highpressure forming process, (3) extreme pressure as an explosion dynamic process, etc. Medium can is amorphous solid, liquid, or gas, in the system of medium can be basis must processing shape make arbitrary changes, fulfill the punch function, so medium can be equated to a universal mold. Figure 4 is plank super shobach the example, forming from the graph visible at effective media bees the punch. The hydraulic internal highpressure forming technology pared with other stamping technology, there are several obvious advantages: (1) the forming process can one processing out like axle, top cover, doorcase and other large and plex 3d geometric shapes of workpiece, (2) because of liquid in the forming process cooling effect, make the workpiece is a cold strengthening, won than ordinary stamping workpiece machining higher strength, this makes allowing a thinner plank, to make the work more lightweighting。 (3) workpiece surface appearance only with pressure liquid contact, pressure is gentle, parts forming process changes, can obtain the symmetry of uniform pressure distribution, and can winner much better smooth outside surface, (4) in stamping and bloom some hydraulic tool charge can reduce 40%, special reduced convex parts processing of takt time is shorter, about MIN, this in special forming process is shorter, may realize the batch production. Using the electromagic force generated electricity coil electromagic forming process, is the present quite promising another new processing method. This process from 1960s nuclear fission research achievement, but unfortunately has not been people attention. Electromagic forming technology principle diagram, when the coil access to electric。