Development of Flexible Mechanism for Two-Point Incremental Forming

Kumar, S. Pratheesh; Elangovan, S.; Mohanraj, R.; Anthuvan, R. Naveen; Nithin, V.

doi:10.1007/978-981-19-3866-5_4

Cited by 1 publication

(2 citation statements)

References 16 publications

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“…The thickness distributions of both the CAD design and experimental results are depicted in Figure 8, with the data collected from the edge to the center of the workpiece. The thickness was calculated using Equation (1). The values of X, Y, and Z displacements were determined using a coordinate measuring machine (CMM) on both the workpiece bottom and top surfaces.…”

Section: Thickness Distributionmentioning

confidence: 99%

“…3D printing, a key Industry 4.0 technology, has revolutionized work processes and increased the demand for advanced manufacturing techniques, especially for small-batch custom products. One crucial process for small to medium-sized customized sheet-material production is single-point incremental forming (SPIF) [1]. This cost-effective technology allows for the creation of highly customized shapes and components in a single step from metal sheets, without the need for dedicated dies.…”

Section: Introductionmentioning

confidence: 99%

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Hot-Air Contactless Single-Point Incremental Forming

Almadani,

Guner,

Hassanin

et al. 2023

JMMP

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Single-point incremental forming (SPIF) has emerged as a time-efficient approach that offers increased material formability compared to conventional sheet-metal forming techniques. However, the physical interaction between the forming tool and the sheet poses challenges, such as tool wear and formability limits. This study introduces a novel sheet-forming technique called contactless single-point incremental forming (CSPIF), which uses hot compressed air as a deformation tool, eliminating the requirement for physical interaction between the sheet and a rigid forming tool. In this study, a polycarbonate sheet was chosen as the case-study material and subjected to the developed CSPIF. The experiments were carried out at an air temperature of 160 °C, air pressure of 1 bar, a nozzle speed of 750 mm/min, and a step-down thickness of 0.75 mm. A Schlieren setup and a thermal camera were used to visualize the motion of the compressed hot air as it traveled from the nozzle to the sheet. The results showed that the CSPIF technique allowed for the precise shaping of the polycarbonate sheet with minimal springback. However, minor deviations from the designed profile were observed, primarily at the starting point of the nozzle, which can be attributed to the bending effects of the sample. In addition, the occurrence of sheet thinning and material buildup on the deformed workpiece was also observed. The average surface roughness (Ra) of the deformed workpiece was measured to be 0.2871 microns.

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Section: Thickness Distributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%