Abstract
This paper mainly researches on the effect from high-speed shearing tool to the quality of stainless steel tube cutting. At first, the relationship between contour line of vertical blade and the direction of shear force and chip flow are studied, and the influence on the quality of shearing caused by the size of blanking clearance is analyzed. Then a new blade contour line that made most of the iron chippings is located outside of the tube and reasonable blanking clearance is obtained. Further, based on the tearing caused by single-blade shear on the top of steel tube, the shape and angle of the vertical blade are studied, and the structure of the vertical blade nose is optimized, which improves the shearing quality of the blade. Finally, the numerical simulation of the process of shearing is done to verify the feasibility of the designed structure by the finite element software DEFORM.
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