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第2期 郑振华等:成形角对楔横轧21-4N合金钢气门心部质量的影响 ·233· [5 Zheng J Q,Zhang Y M,Sun A X.Life analysis of hot ex- (张康生,杜惠萍,杨翠苹,等.楔横轧件螺旋痕产生原因 trusion die for valve stem.J Luoyang Inst Technol,2000, 研究.机械工程学报,2011,47(8:93) 21(4):22 [11 Zheng Z H,Wang B Y,Hu Z H.Mechanism of camshaft (郑金桥,张彦敏,孙爱学.气门顶杆热挤压模具的寿命分 forming by cross wedge rolling.J Univ Sci Technol Bei- 析.洛阳工学院学报,2000,21(4:22) 1m9,2010,32(5):650 [6]Wang Y,Duan D H,Xia J C,et al.Optimum design and (郑振华,王宝雨,胡正寶.凸轮轴挨横轧精确成形机理.北 numerical simulation of hot extrusion die of the valve.J 京科技大学学报,2010,32(5):650) Plast Eng,1998,5(1:66 [12 Liu W K,Zhang K S,Hu Z H.Feasibility study on form- (王英,段道华,夏巨湛,等.气门热挤压模具的优化设计 ing light area reduction shafts by cross wedge rolling.J 与数值模拟.塑性工程学报,1998,51:66) Univ Sci Technol Beijing,2011,33(6):762 [7]Wang H J.Optimized Die Design and Numerical Simula- (刘文科,张康生,胡正寶.小断面收缩率轴类零件楔横轧 tion for Hot Ertrusion Process of the Valve [Dissertation]. 成形的可行性分析.北京科技大学学报,2011,33(6):762) Wuhan:Huazhong University of Science and Technology. [13 Jia Z,Zhang K S,Yang C P:et al.Forming principle 2006 of heavy section shrinkage cross wedge rolling by single (王海江,气门热挤压成形过程模拟及其模具优化设计「学 位论文].武汉:华中科技大学,2006) wedge.J Univ Sci Technol Beijing,2009,31(8):1046 (贾震,张康生,杨翠苹,等.楔横轧一次楔大断面收缩率 [8]Wang H J.Xia J C,Wang X Y,et al.Process numerical 成形机理.北京科技大学学报,2009,31(8):1046) simulation on hot extrusion preforming and final forging of automobile valves.China Met Forming Equip Manuf [14!Lou Y Z,Zhang K S,Yang C P,et al.Effect of process Technol,2006,41(3):50 parameters on axial parts with super large area reduction (王海江,夏巨谌,王新云,等.气门热挤压预成形和终锻成 during twice cross wedge rolling.J Univ Sci Technol Bei- 形过程模拟.锻压装备与制造技术,2006,41(3):50) Jg,2008,30(4):432 [9]Hu Z H.Zhang K S,Wang B Y,et al.CWR Forming (娄依志,张康生,杨翠苹,等。工艺参数对楔横轧二次 Technology and Simulation.Beijing:Metallurgical Indus 楔轧制超大断面收缩率轴类件的影响.北京科技大学学报, try Press,2004 2008,30(4):432) (胡正賽,张康生,王宝雨,等.楔横轧零件成形技术与模 [15 Gong Y P,Wang Y Q,Duan P R.Hot deformation re 拟仿真.北京:冶金工业出版社,2004) sistance model of valve steel 5Cr21Mn9Ni4N.Spec Steel, [10]Zhang K S,Du H P,Yang C P,et al.Study on the cause 1995,16(1:19 of spiral groove in cross wedge rolling.J Mech Eng,2011, (龚永平,王印清,段丕荣.阀门钢5Cr21Mn9Ni4N热变形 47(8):93 抗力模型.特殊钢,1995,16(1):19)
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