Backward Drawing of Necks Using Incremental Approach
The paper presents a modern manufacturing concept called the “backward incremental hole-flanging process”. It enables drawing necks on the final products that can be very complex or even closed with minimal expense. Special attention is dedicated to researching the most influential process parameters affecting the neck height and the thinning of the neck using empirical modelling. Results show that forming tool diameter, and horizontal and vertical step sizes have the greatest influence on the forming results.
J.R. Duflou, R. Clarke, M. Merklein, F. Micari, B. Shirvani and K. Kellens
A. Petek et al., "Backward Drawing of Necks Using Incremental Approach", Key Engineering Materials, Vol. 473, pp. 105-112, 2011