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of Al-0.2 Ce-0.2 Sc alloy and the high electrical conductivity of Al-0.2 Ce-0.1 Y alloy simultaneously.After cold drawing and annealing at 200℃ for 5 h,the ultimate tensile strength of Al-0.2 Ce-0.2 Sc-0.1... of Y significantly decreased the density of defects after cold drawing compared to Al-0.2 Ce-0.2 Sc alloy,which improved electrical conductivity of the alloy.Furthermore,the dispersed and coherent nano......
. The results show that the strength increased with increasing strain, the resistivisy first increased, but then decreased with increasing strain. During drawing, the particles of FCC γ Fe which has a good... diameter of ultrafine grain is determined to be 120 nm when the strain accumulates to the value of 8.3. Keyword: cold drawing; ultrafine grains; Martensite of deformating......
Formability improvement and blank shape definition for deep drawing of cylindrical cup with complex curve profile from SPCC sheets using FEMDuc-Toan Nguyen1, 2, Duy-Khoe Dinh1, Hong-Minh Thi Nguyen1...)Abstract:In the current work, to predict and improve the formability of deep drawing process for steel plate cold rolled commercial grade (SPCC) sheets, three parameters including the blanking force......
by the coupled emission of Shockley dislocations from a boundary. Key words: industrial single crystal copper wires; 9R structure; cold drawing drawing process......
变形;温热拉深;极限拉深比 中图分类号:TG 146 文献标志码:A Deep drawing of twin-roll cast AZ31B Mg alloy sheets at warm temperatures by pre-forming LIU Zhi-min, XING Shu-ming, BAO Pei-wei, LI... warm deep drawability of the twin-roll cast AZ31B Mg alloy sheet, a warm deep drawing process by pre-forming was proposed. The warm deep drawing experiments of twin-roll cast AZ31B Mg alloy sheets......
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一种新型的锥形方管无模拉伸成形工艺夏鸿雁1,2,吴迪1,栾瑰馥2(1.辽宁省沈阳市东北大学轧制技术及连轧自动化国家重点实验室2.辽宁省沈阳市沈阳大学机械工程学院)摘 要:介绍了一种新型的锥形方管无模拉伸成形方法,该方法解决了锥形方管难于塑性成形的问题.通过对锥形方管无模拉伸变形机制的研究,建立了锥形方管无模拉伸的速度模型,制定了无模拉伸加工工艺,给出了主要工艺参数的确定方法.实验研究证明,所建立的速度模型较好地表达了无模拉伸速度变化规律,采用无模拉伸加工方法所获得的加工件,理论尺寸与实际尺寸相对误差小于7.6%......
控制超深冲钢碳含量的生产实践卿家胜1,袁宏伟1,李盛1,杨森祥1,黄登华1(1.四川省攀枝花市攀钢钒炼钢厂)摘 要:介绍了攀钢冶炼IF4钢转炉,精炼,连铸过程中化学成分的冶炼控制技术及控制水平,对超深冲钢IF4中碳含量的控制技术进行了详细分析,为IF钢的生产提供指导.IF钢的成品碳质量分数平均降低到18×10-6左右,取得了明显的效果.关键词:超深冲IF钢; 强化机制; 冶炼控制; 碳含量......
Trans. Nonferrous Met. Soc. China 28(2018) 1602-1610 Fabrication and application of nano/microcrystalline composite diamond coated drawing dies using alternative carbon sources Cheng-chuan WANG, Xin... composite diamond films were deposited on the holes of WC-6%Co drawing dies by a two-step procedure using alternative carbon sources, i.e., methane for the microcrystalline diamond (MCD) layer......
; 文献标志码:A Optimization of drawing parameters for 20/316L bimetal-lined pipe based on FEM simulation LU Xiao-feng, ZHENG Xin (College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 210009, China) Abstract: By means of the finite element analysis software ABAQUS6.5, a drawing forming process of bimetal-lined pipe made of 20 carbon steel......