A process model for shot peen forming
A process model for shot peen forming
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DOI：
10.1016/j.jmatprotec.2005.09.006
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发表时间：
2006-02-01
影响因子：
6.3
通讯作者：
Levers, A
中科院分区：
文献类型：
--
作者：
Wang, T;Platts, MJ;Levers, A
采用能产生塑性层的等效加载单元模拟喷丸宏观成形效果。由于存在特定的塑料覆盖，其中单个喷丸撞击可以被视为独立作用，因此可以假设它们的累积效应作为静态载荷的结果分布在塑料层中。加载单元对应于宏观拉伸应变，可以根据喷丸半径、质量流量和气压等喷丸参数方便地进行校准。对于较强的喷丸，加载循环次数与喷丸时间成正比，这使得该模型具有实际应用价值。与实验结果比较，该模型对喷丸变形有较好的预测效果。(C)2005 Elsevier B.V.保留所有权利。
An equivalent loading unit that can produce a plastic layer was used to model the macroscopic forming effects of shot peening. Because a specific plastic coverage exists in which the individual peen impacts can be regarded as acting independently, their cumulative effects can be assumed to be distributed in the plastic layer as the result of a static load. The loading unit Corresponds to the macroscopic stretching strain and can be conveniently calibrated from the peening parameters, such as shot radius, mass flow rate and air pressure. For more intensive peening, the number of loading cycles is in direct proportion to the peening time, which makes the model applicable to practical applications. Compared with experiments, this model gives a good prediction of the peen-formed deflection. (c) 2005 Elsevier B.V. All rights reserved.