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	Experimental study of springback behavior in incremental bending process
	Feifei Zhang; Jianbin Ruan; Ji Zhang; Kai He; Ruxu Du
	2018
会议日期	2018
会议地点	Toyohashi, Japan
英文摘要	Manufacturing complicated and thick ship-hull plates at reasonable price and efficiency has always been a challenge in shipbuilding industry. One widely used method is line heating process, which is not only labor intensive but also ineffective. Until now, many flexible forming processes have been developed while most of them are at experimental research stage and they all have avoidable disadvantages. In order to reduce the forming force in manufacturing ship-hull plates, our group proposed one new flexible incremental bending technology, during which the flat blank was bended into the required shape by gradually stamping at various positions. During the incremental bending process, the minimum energy method is used to determine the proper loading path. However, there is huge springback phenomenon after each bending process. The shape change after each springback process should be considered in the loading path determination to make sure the accurate shape can be obtained. Here in this paper, the springback behavior of the carbon steel Q235 during the incremental bending process was investigated by experiments. In the first stage, the flat plates were bended several times at the same position while the final bending depth is the same, the final bending shapes after springback were compared to each other to investigate the influence of loading path on the springback behavior of the material. In the second stage, the flat plates were bended once at various positions and bending depths to study the springback behavior in one step bending process. It was found that loading path has little influence on the springback behavior, so during the incremental bending process, the springback law obtained from each single bending process can be used to combine with the minimum energy method to obtain the proper punch moving trajectory.
内容类型	会议论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/13748]
专题	深圳先进技术研究院_集成所
推荐引用方式 GB/T 7714	Feifei Zhang,Jianbin Ruan,Ji Zhang,et al. Experimental study of springback behavior in incremental bending process[C]. 见:. Toyohashi, Japan. 2018.

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