선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
최소 단어 이상 선택하여야 합니다.
선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- A two-dimensional CAD model of the pipe was created using CATIA V5 (CATIA V5 R21, Dassault Systèmes, Vélizy-Villacoublay, France) and converted to the 2D dxf CAD format. The commercial finite element program DEFORM utilized to create a rectangular grid, as shown in Fig.
- The pipe drawing analysis was divided into two main parts. First, process analysis was conducted by changing the cross-sectional reduction rate. The second analysis involved changing the angle of the drawing die.
- The first goal of our analysis was to determine the optimum cross-section reduction rate by varying it during the drawing process. The second goal was to find the optimal die angle by varying it.
- The drawing is carried out twice. This study investigates the effects of two factors, namely cross-section reduction rate and die angle, on the pipe material.
대상 데이터
- The number of steps in one run of drawing was 800, and these steps amounted to 25 s in terms of time. The length of the material used in the analysis was 100 mm. The Newton– Raphson algorithm was used for the calculation.
- The number of elements was 100 × 10. The material was AISI carbon steel 1020. We assumed that the material was a rigid plastic body, and the mandrel and the drawing die were rigid bodies.
이론/모형
- In this study, we used AISI 1020 carbon steel as the pipe material, and the properties of this material available in the DEFORM environment (DEFORM version 11.0, Scientific Forming Technologies Corporation, Columbus, Ohio, USA) were used. Table 1 summarizes the mechanical properties of the material.
- The length of the material used in the analysis was 100 mm. The Newton– Raphson algorithm was used for the calculation. The maximum number of iterations was limited to 200 per step.
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