The paper has studied straightening stress and residual deformation of circular shaft by using elastic - plastic theory, deueloped calculation formula of straightening loud in given deflection error.

从弹塑性理论出发以圆截面轴为例对校正应力与残余变形进行了分析研究，提出了在给定弯曲误差下的校正载荷的计算公式。

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The results showed that shooting method was effective to deal with the deformation of elastic-plastic beam with large-deflection.

结果表明，打靶法是解决弹塑性梁大挠度变形问题的有效方法。

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According to the structure and technical requirements of pin terminator plastic products, the unqualified products such as surface air-bubble and long needle deflection are analyzed and improved.

根据端子产品塑件的结构、技术要求，对生产过程中产生的造成产品不合格的表面气泡和长针歪斜等因素进行了分析和改进。

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