Force parameters and experimental characterisation in fine-blanking process

Abstract

It is important that before any experimental study in fine-blanking process a raw estimation is obtained of any forces which applied to the blank. Thus, this paper aims to present the development of force parameters and experimental characterisation in fine-blanking process. For this reason the effects of blank thickness and tensile strength on fine-blanking force have been examined by experimental approach and theoretical formulation. Also, the effects of counterforce and V-ring length on workpiece flatness and total force have been illustrated experimentally. The results show that the mechanism of the V-ring indenter could be experimentally clarified on the basis of material flow analysis. Also, the flatness of workpiece increases with an increase in counterforce in fine-blanking process. Furthermore, forming force increases with an increase in the blank thickness and tensile strength.

Keywords:

• Fine-blanking
• force analyses
• theoretical force estimation
• experiments

Acknowledgements

The authors would like to thank the Andisheh Industrial Group for the provision of valuable information and product data.

Disclosure statement

No potential conflict of interest was reported by the author.