Dynamic Die Supply: Advancing Off-Center Loading Prediction in Sheet Metal Forming

In the latest research update, the focus shifts to predicting off-center loading in sheet metal forming operations, particularly in transfer die forming. This critical aspect of manufacturing operations can significantly impact press performance and part quality, making it essential for informed decision-making.

Transfer die forming, characterized by the transfer of a blank to multiple individual dies or stations, presents unique challenges compared to single die forming operations. Off-center loading arises from differences in forming and cutting forces across stations and their distances from the press center, resulting in an imbalance that can affect press stability.

A case study conducted by researchers at The Ohio State University’s Center for Precision Forming, in collaboration with Bowman Precision Tooling, offers valuable insights into this phenomenon. The study focused on a transfer die set comprising seven individual dies, aiming to develop a methodology for predicting off-center loading using finite element (FE) simulation.

Using a commercially available FE software package, the researchers, equipped with AutoForm R8, conducted off-center loading calculations at bottom dead center (BDC) to estimate the forces on the press columns. This innovative approach provides a systematic framework for evaluating and mitigating off-center loading risks, enhancing manufacturing efficiency and part quality.

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Article with all rights reserved, courtesy of thefabricator.com

Photo with all rights reserved, courtesy of depositphotos.com