锻压技术

喷丸成形工艺参数对成形曲率半径的影响分析

英文标题：Influence analysis of shot peening forming technological parameters on formed curvature radius

分类号：TG306

出版年,卷(期):页码：2014,39(9):53-57

摘要：

介绍了喷丸成形机理以及弹丸尺寸、喷射速度、弹丸流量、进给速度等主要工艺参数对成形曲率半径的影响规律。通过建立覆盖率计算模型和试板变形弯矩表达式，根据能量原理建立了弹丸动能与平板变形能关系的表达式，进而建立了喷丸成形工艺参数与平板件成形曲率半径间的关系模型。针对直径为Ф3.18 mm的大弹丸喷丸成形，以机床进给速度及喷丸气压值为喷丸参数中的变量，进行平板喷丸工艺试验。试验结果表明，其理论计算值与试验值相符较好。

The influence regularities of shot peening forming mechanism, shot size, jet shot speed, shot flow rate, feed speed and other important parameters on the formed curvature radius were introduced. A relationship between shot peening forming technological parameters and formed curvature radius was established by setting up the calculation model of the coverage rate and the moment equation of plate deformation as well as the expression of relationship between shot kinetic energy and the deformation energy of plate based on the energy theory. The shot peening forming experiment of plate was conducted using the variable technological parameters of feed speed and shot jet pressure with Φ3.18 mm shot diameter. Experimental result shows that the calculated result is in agree with the experimental result.

基金项目：

国家自然科学基金资助项目（51275420）

高国强（1978-），男，硕士，高工

参考文献：

［1］Friese A, Lohmar J,Stefeld F W. Current applications of advanced peen forming implementation[A]. Proceedings of the 8th International Conference on Shot Peening
［C］. Germany:Garmisch-Partenkirchen,2002.
［2］Kobayashi M, Matsui T, Murakami Y. Mechanism of creation of compressive residual stress by shot peening[J]. International Journal of Fatigue,1998, 20(5): 351-357.
［3］Hassani-Gangaraj S M, Guagliano M, Farrahi G H. Finite element simulation of shot peening coverage with the special attention on surface nanocrystallization[J]. Procedia Engineering, 2011, (10): 2464-2471.
［4］Frija M, Hassine T, Fathallah R, et al. Finite element modelling of shot peening process: Prediction of the compressive residual stresses, the plastic deformations and the surface integrity[J]. Materials Science and Engineering: A,2006, (426): 173-180.
［5］Kim T, Lee J H, Lee H, et al. An area-average approach to peening residual stress under multi-impacts using a three-dimensional symmetry-cell finite element model with plastic shots[J]. Materials & Design,2010, 31(1): 50-59.
［6］Al-Obaid Y F. Shot peening mechanics: experimental and theoretical analysis[J]. Mechanics of Materials,1995, 19: 251-260.
［7］Franchim A S, Campos V S D, Travessa D N, et al. Analytical modelling for residual stresses produced by shot peening[J]. Materials & Design,2009, 30(5): 1556-1560.
［8］Miao H Y, Larose S, Perron C, et al. An analytical approach to relate shot peening parameters to Almen intensity[J]. Surface and Coatings Technology,2010, 205(7): 2055-2066.
［9］Kim T, Lee H, Jung S, et al. A 3D FE model with plastic shot for evaluation of equi-biaxial peening residual stress due to multi-impacts[J]. Surface and Coatings Technology,2012, 206(13): 3125-3136.
［10］张贤杰. 喷丸成形工艺参数优化计算技术研究[D]. 西安: 西北工业大学, 2008.Zhang X J . A Study on Optimal Calculation of Process Parameters in Shot Peen Forming [D]. Xi'an: Northwestern Polytechnical University, 2008.
［11］王明涛，曾元松，尚建勤，等. 基于ABAQUS的大尺寸弹丸喷丸过程数值模拟[J]. 塑性工程学报,2012,19(5): 109-114.Wang M T, Zeng Y S, Shang J Q, et al. Numerical simulations of shot peening with large balls on ABAQUS[J]. Journal of Plasticity Engineering, 2012,19(5): 109-114.
［12］王明涛，曾元松，黄遐. 大尺寸弹丸喷丸成形2024-T351铝合金表面质量研究[J]. 航空制造技术,2012,(5): 92-94.Wang M T, Zeng Y S, Huang X . Research on surface quality of 2024-T351 aluminum alloy by peen forming with large ball [J]. Aeronautical Manufacturing Technology, 2012,(5): 92-94.
［13］李国祥. 喷丸成形[M]. 北京：国防工业出版社, 1982.Li G X. Shot Peen Forming[M]. Beijing:National Defence Industry Press,1982.
［14］杨永红，乔明杰，张卫红. 喷丸条件对残余应力场的影响规律[J]. 中国表面工程, 2009,22(2): 45-48.Yang Y H, Qiao M J, Zhang W H . Influence of shot peening parameters on the residual stress field[J]. China Surface Engineering,2009,22(2): 45-48.

服务与反馈：

【文章下载】【加入收藏】