Experimental Study of Impact Parameters on the Deforming Loads in Incremental Forming

Single point incremental forming (SPIF) is an emerging sheet forming method and has been widely accepted by the researchers for fabricating the customized items for the industrial uses and the end users. The measurement of the deforming loads during this viable method would assess the need of specific capacity of the SPIF machines for the given process conditions and materials. Therefore, this work aims at investing the influence of the punch feed rate and the forming angle on the peak values of the deforming loads. The conical frustums of the varied forming angles are produced from the AA2024 aluminum alloy sheets. The CNC milling machine was utilized for this die-less sheet forming. The table type dynamometer was utilized for recording the peak values of the deforming loads during the fabrication of the frustums. Experimental results confirmed that both the input factors were significant to impact the deforming loads. It was also confirmed that the small increment in the forming angle led to the significant rise in the deforming loads for all punch feed rates.