Effect Counter Force on Workpiece Shrinkage in Sheet Metal Extrusine Process

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Theeraphon Boontham
Bopit Bubphachot

Abstract

 The objectives of this research are 1) to study the influence of back pressure on workpiece quality in the sheet metal extrusion process. 2) To apply the finite element method in the analysis of the sheet metal forming process. The results indicate that the influence of back pressure on workpiece collapse in the sheet metal extrusion process, to the stress in the workpiece material at the radius edge of the cutting edge will be separated. The affect to the diffusion of hydrostatic stress of material in the shear strip area has dispersion value and spread into the worksheets easity. When setting 20 kN, it was found that the hole appear at the end of the rounded compression that cause of more materials, When the pressure was set at 60 kN, it was found that little bit appear at the end of the compression because the resistance of the pressure the material is greater. Which will cause the creation of compressive stress around the compression hole to decrease and cause die rolls to occur. The principle and material use of sheet metal extrusion process simulation by finite element method was found that the results of experimental and simulation are the same, accuratery corresponds to reality.

Article Details

How to Cite
Boontham, T., & Bubphachot, B. (2024). Effect Counter Force on Workpiece Shrinkage in Sheet Metal Extrusine Process. Vocational Education Innovation and Research Journal, 8(2), 39–50. retrieved from https://so06.tci-thaijo.org/index.php/ve-irj/article/view/268614
Section
Research Articles

References

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