Pass schedule design in multi-pass tube drawing process by advanced strain control model
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초록
The multi-pass tube drawing process is primarily used to manufacture long hollow components during the metal forming process. The housing of the servomotor is a typical component manufactured using a multi-pass tube drawing process. Many studies have been conducted on the pass schedule of the multi-pass drawing process for solid-type steel rods; however, there has been little research on the pass schedule for hollow-type steel tubes. Therefore, the objective of this study is to design a pass schedule for the multi-pass tube drawing process based on an advanced strain control model and drawing force prediction. The key parameters of the strain-control model are the ratio of the drawing strain between passes and the thickness of the drawn tubes at each pass. The drawing forces during the multi-pass plug drawing process were theoretically calculated using Geleji’s equation to enable their prediction, and the calculated values at each pass closely agreed with the finite element (FE) analysis results. As a result of the FE analysis, the proposed pass schedule can provide adequate dimensional accuracy for the drawn products.
Abstract
The multi-pass tube drawing process is primarily used to manufacture long hollow components during the metal forming process. The housing of the servomotor is a typical component manufactured using a multi-pass tube drawing process. Many studies have been conducted on the pass schedule of the multi-pass drawing process for solid-type steel rods; however, there has been little research on the pass schedule for hollow-type steel tubes. Therefore, the objective of this study is to design a pass schedule for the multi-pass tube drawing process based on an advanced strain control model and drawing force prediction. The key parameters of the strain-control model are the ratio of the drawing strain between passes and the thickness of the drawn tubes at each pass. The drawing forces during the multi-pass plug drawing process were theoretically calculated using Geleji’s equation to enable their prediction, and the calculated values at each pass closely agreed with the finite element (FE) analysis results. As a result of the FE analysis, the proposed pass schedule can provide adequate dimensional accuracy for the drawn products.
참고문헌 (9)
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