Incremental sheet forming (ISF) is a flexible sheet metal forming process to realize products within short time from design to the first produced part. Although fundamental research on ISF has been carried out around the world, ISF still misses commonly required tolerances for industrial application. In this study, the influences of tool path as well as intrusion depth of the forming tool into the sheet material on the geometrical accuracy were investigated. In the conducted experiments, both flat and stretch-formed sheet metal blanks with different tool paths and intrusion depths were examined. Experimental and numerical investigations showed that changes in the range of a tenth millimeter of the intrusion depth with a consistent tool path lead to different resulting part geometries. A better understanding of the sensitive influence of the tool path and the intrusion depth on the resulting geometry might lead to more accurate parts in the future.
Abstract. Incremental sheet forming (ISF) has a high potential to produce individualized products and prototypes or small series from sheet metal. The universal forming tool, as well as the digital process control, in principle, allow a fast realization from design to a finished component. However, a high level of testing and planning is often required to achieve the necessary geometric accuracy. A large number of scientific studies on process parameters and process variants have led to significant progress in the specific studied cases. Nevertheless, this progress can often not be transferred to arbitrary component geometries. Despite the many valuable detailed scientific findings, there is a lack of a holistic overview. The translation of case specific findings to a broad range of real application components is missing. Due to the large number and complexity of process parameters as well as a wide variety of possible component geometries, a systematic collection of knowledge and experience is required. Therefore, this paper describes the development of a web-based database for process data of incremental sheet forming. This database should first of all allow component data and associated process data to be recorded, completely and reproducibly. By sharing the database with a large number of research teams and end users, an intensive exchange of experience can take place systematically and new knowledge can be generated collaboratively.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.