机械制造与自动化2025，Vol.54Issue(5)：73-78,6.DOI:10.19344/j.cnki.issn1671-5276.2025.05.014
GH4169螺栓圆角滚压对表面粗糙度和变形量的影响
Effect of Fillet Rolling of GH4169 Bolt on Surface Roughness and Deformation
何坤 1马震宇 2樊建军 1赵阳 1漆昌恒 2徐锋 2左敦稳2
作者信息
- 1. 河南航天精工制造有限公司,河南 信阳 464099||河南省紧固连接技术重点实验室,河南 信阳 464099
- 2. 南京航空航天大学,江苏 南京 210016
- 折叠
摘要
Abstract
This paper studies the effects of different rolling process parameters on the horizontal roughness,vertical roughness and plastic deformation of the lower fillet of GH4169 bolt head by orthogonal test.The bolts for experiment are 1 300 MPa grade GH4169 ordinary thread hexagon head bolts,whose standard number being Q/Dy1079-2012,with specification as M6×42-A and the fillet under the head as R=0.6 mm.The roughness and deformation are characterized by laser confocal microscopy and surface shape measuring instrument,with the focus on the study of the effects of three process parameters,rolling pressure,rolling time and rolling speed on rolling strengthening.The results show that the primary and secondary ordrs of the influence of rolling process parameters on the horizontal roughness of the fillet under the bolt head are:rolling speed,rolling time,rolling pressure;the primary and secondary effects on the vertical roughness are:rolling speed,rolling pressure,rolling time;the primary and secondary effects on deformation A and C are:rolling pressure,rolling speed,rolling time;the primary and secondary effects on the deformation B and axial residual stress are:rolling pressure,rolling time,and rolling speed.关键词
GH4169螺栓/圆角滚压/表面粗糙度/变形量Key words
GH4169 bolts/fillet rolling/surface roughness/deformation分类
机械制造引用本文复制引用
何坤,马震宇,樊建军,赵阳,漆昌恒,徐锋,左敦稳..GH4169螺栓圆角滚压对表面粗糙度和变形量的影响[J].机械制造与自动化,2025,54(5):73-78,6.
