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| 三辊斜轧空心减径的辊形设计及实验验证 |
| Roll Profile Design and Experiment on Three Roll Cross Rolling of Hollow Diameter Reduction |
| Received:June 21, 2013 Revised:August 01, 2013 |
| DOI：10.3969/j.issn.1674-6457.2013.05.005 |
| 中文关键词: 三辊斜轧 空心减径 辊形设计 ANSYS 有限元 |
| 英文关键词: three roll cross rolling hollow diameter reduction roll profile design ANSYS finite element |
| 基金项目: |
| Author Name | Affiliation | | JIA Shang-wu | China National Heavy Machinery Research Institute Co. , Ltd. , Xi忆an 710000, China | | WANG Zhao-lin | Shanxi Wangping Coal Limited Liability Company, Shuozhou 036000, China | | LIU Song | China National Heavy Machinery Research Institute Co. , Ltd. , Xi忆an 710000, China | | SHUAI Quan-zhi | Shanxi TZ Coal Mine Whole Set Equipment Co. , Ltd. , Taiyuan 030000, China |
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| 中文摘要: |
| 以三辊斜轧空心减径过程中辊形对轧制过程的影响规律为研究对象,对无缝钢管三辊斜轧空心减径过程进行分析研究,建立了辊型的数学模型。 利用有限元软件分析辊形曲线对成形过程的影响,并在某三辊实验轧机上进行实验分析,将实验结果与有限元模拟结果进行对比和分析。 结果表明,当减径量小于10 mm 时,入口锥角为 2 . 5 o 的辊型对应的轧件在接近均整变形区金属流动十分平缓和均匀,轧件前端面也从三角形截面逐步变为圆截面;当减径量在 14 mm 左右,采用入口锥角为 3 . 5 o 的辊型时轧件的质量较好。 |
| 英文摘要: |
| This paper studies effects of roll shape on rolling process in three roll rolling hollow diameter reduction, and analyzes the reducing process of the seamless hollow three roll cross rolling, establishes a mathematical model of roll. Using finite element analysis software roll shape curve effect on the forming process is analyzed and experiments are performed on an experimental three roll mill. Finally, the experimental results and finite element simulation results are compared and analyzed. The paper gives following conclusions: when the reduced diameter is less than 10 mm, the metal flow near the entire deformation zone for the rolling part with inlet cone angle of 2. 5o of roll is very gentle and uniform, the front surface of the rolling part is also gradually turned from triangular cross -section to round ones, and when the reducing amount is 14 mm or so, the quality is better by using the entrance cone angle of 3. 5o of roll rolling. |
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