An AA3003 tube was severely deformed by cold floating plug drawing, and then annealed at temperatures from 210 to 460°C. The as drawn Al tube exhibited a typical deformation structure in which the grains were greatly elongated along the drawing direction. The hardness increased with increasing the reduction of cross-sectional area (RA), became 68Hv after RA= 99%. Up to 310°C, the Al tube still mainly exhibited a deformed structure. While complete recrystallization occurred at temperatures above 360°C. The hardness decreased with increasing the annealing temperature, and it became 33Hv after annealing at 410°C. Both the tensile and yield strengths also decreased with increasing the annealing temperature, but the decrease was larger in yield strength than in tensile strength. The elongation increased with increasing the annealing temperature. The changes in the strength and the elongation with the annealing temperature were the largest at 360°C, in which the complete recrystallization occurred.

1. Introduction 
2. Experimental Section 
    2.1 사용 재료 및 인발 공정 
    2.2 특성평가 
3. Results and Discussion 
    3.1 미세조직 
    3.2 기계적 성질 
4. Conclusion 
Funding
Conflict of Interest 
Data Availability Statement 
Author Information and Contribution 
Acknowledgments
References

• 오성준((주)에스씨) | Sung Jun Oh (SC Corporation Hampyeong-gun 57118, Jeollanam-do, Republic of Korea)
• 허현준(국립목포대학교 첨단재료공학과) | Hyeon-Jun Heo (Department of Advanced Materials Science and Engineering, Mokpo National University, Muan-gun 58554, Jeollanam-do, Republic of Korea)
• 이성희(국립목포대학교 첨단재료공학과) | Seong-Hee Lee (Department of Advanced Materials Science and Engineering, Mokpo National University, Muan-gun 58554, Jeollanam-do, Republic of Korea) Corresponding author