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.
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。
3
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.