PRINCIPLES AND FINITE ELEMENT SIMULATION OF MULTI-POINT FORMING TECHNOLOGY FOR SHEET METAL


Dülger M. , Tandogan M., Eyercioglu Ö.

The International Journal of Materials and Engineering Technology, vol.3, pp.120-130, 2020 (Other Refereed National Journals)

  • Publication Type: Article / Article
  • Volume: 3
  • Publication Date: 2020
  • Title of Journal : The International Journal of Materials and Engineering Technology
  • Page Numbers: pp.120-130

Abstract

Multi-point sheet metal forming is a relatively new and developing flexible sheet metal forming technology. In this type of forming, the die is separated into small discrete pins which can be arranged in height. So, this reconfigurable die meets the customer requirements mainly used in prototyping of sheet metal parts. Dies in the conventional forming process are replaced with these pairs of matrices of pins. In this study, the fundamental principles of multi-point forming (MPF) are examined and the main parameters of this process are determined with numerical analysis. In FE modeling each pin is actively controlled to form the sheet part. Aluminum 1100 H14 with a 1 mm sheet is used as workpiece material for sheet metal part and finite element simulations are employed then, differences between solid die forming and multi-point forming are indicated. Tearing and dimple formation are investigated and compared with the conventional methods. The results of the numerical analysis show that multi-point forming is very suitable for forming sheet metal with complex shapes