A NUMERICAL AND EXPERIMENTAL EXAMINATION OF STEEL TUBE BALLIZING PROCESS
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Abstract
The ballizing system for steel tubes, a polishing technique that involves pushing a careful estimated ball through a marginally modest pre-machined tube, is the subject of this paper's trial and mathematical review. By forcing a larger ball—typically composed of hard materials like tungsten carbide or bearing steel—through the tube, this quick and inexpensive technique increases the internal diameter. Cold surface plastic forming is used in the process to harden and smooth the material. A comparison of theoretical and experimental evaluations showed that the intensities of stress, strain, and strain rate increase with decreasing ball diameters. The impacts of the ballizing system on strain, stress state, and surface harshness decrease were the principal subjects of this examination. The study investigated different interior diameters and friction conditions using numerical simulations on C45 steel samples using a hydraulic press and Forge® software. Significant increases in mechanical characteristics and surface quality were demonstrated by the results, which also revealed a remarkable connection between experimental and numerical results. The study demonstrates that ballizing is a viable substitute for conventional finishing techniques, providing improved material properties free of abrasive impurities.
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