DESIGN AND EXPERIMENTAL VALIDATION OF A PNEUMATIC SHEET METAL BENDING MACHINE
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In this paper, the design, analysis, and testing of a pneumatic sheet metal bending machine are presented. The objective of the work is to design a low-cost, energy-efficient bending machine using pneumatics and a rotating base. The methodology is divided into three sections: calculation of the forces required, design of the machine using 3D CAD, and construction of the machine. The features of the machine include the use of an aluminum framework, a motorized lead screw clamp at the top to hold the workpiece, a servo rotating base, two pneumatic pistons at the top to apply the pressing force at the point where the bending is required, and one at the bottom with a bending tool to apply the bending force. The workpiece is made of a 1 mm thick aluminum alloy. First, the clamping force required to hold the workpiece is determined, considering the friction, and then the bending force required to bend the workpiece to the required angle is determined. Next, the machine will be designed in CAD to accommodate these forces and motions. Finally, the prototype will be built and tested to determine the bending accuracy. From the results, the machine can be able to bend 1 mm aluminum up to 90° with acceptable accuracy within a 5% error. This can be done at a pressure of less than 5 bar. This paper has contributed to the understanding of the design framework for the pneumatic press brake that can be used as a reference for an undergraduate project. The results obtained match the theoretical values.
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Muppidwar, O., Pathak, S., Jogdand, O., Mane, O., Marathe, O. & Shinde, S. (2026). Design and Experimental Validation of a Pneumatic Sheet Metal Bending Machine. International Journal of Science, Strategic Management and Technology, 02(05). https://doi.org/10.55041/ijsmt.v2i5.297
Muppidwar, Om, et al.. "Design and Experimental Validation of a Pneumatic Sheet Metal Bending Machine." International Journal of Science, Strategic Management and Technology, vol. 02, no. 05, 2026, pp. . doi:https://doi.org/10.55041/ijsmt.v2i5.297.
Muppidwar, Om,Sarthak Pathak,Omkar Jogdand,Omkar Mane,Ojas Marathe, and Sunil Shinde. "Design and Experimental Validation of a Pneumatic Sheet Metal Bending Machine." International Journal of Science, Strategic Management and Technology 02, no. 05 (2026). https://doi.org/https://doi.org/10.55041/ijsmt.v2i5.297.
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