摘要
借助有限元软件MSC.Super Form对锥形辊斜轧穿孔过程进行热力耦合仿真实验,研究穿孔过程中轧件和顶头的温度场,分析管坯合金含量、轧辊送进角对轧件和顶头温度场的影响,特别是对轧件温升的影响。结果表明:穿制不同合金含量的钢种时,在轧件纵剖面上温度分布形态不同,随合金含量的升高,变形区金属的最高温度由中间层向外表层靠近;随着管坯合金含量与送进角的增大,变形区金属温升增大,穿制高合金钢管坯时温升可达350℃以上,因此,在穿制高合金钢管坯时温升是应考虑的重要因素。
With the finite element software MSC.SuperForm, a thermo-mechanical coupled simulation of tube piercing process with cone-roll piercer was simulated, the temperature field of the workpiece and plug was investi- gated during the piercing process. The influence of alloy content of steel and roll feed angle on the temperature field, especially on the temperature rise of metal was analyzed. Results show that the temperature distribution has different pattern along the longitudinal section of the workpiece for tube rounds of different alloy content. With the increase of alloy content, the highest temperature of metal moves from the middle layer to the surface of the workpiece; With the increase of alloy content in tube rounds and feed angle, the temperature rising in the metal in- creases, especially piercing high grade steel, the temperature rising is more than 350 ℃, therefore the temperature rising, as an important factor, should be considered when piercing high grade steel.
出处
《安徽工业大学学报（自然科学版）》
CAS
2015年第4期315-319,324,共6页
Journal of Anhui University of Technology（Natural Science）
关键词
锥形辊穿孔
温度场
钢种
送进角
热力耦合分析
cone-roll piercing
temperature field
steel grade
feed angle
thermo-mechanical coupled analysis
