Experimental study on the surface defects of materials in bar rolling with a processing map applicable to billet-to-oval groove rolling

沟槽(工程) 巴(单位) 材料科学 曲面(拓扑) 结构工程 工程类 机械工程 工程制图 冶金 地质学 几何学 数学 海洋学
作者
Dong-Yun Lee,Youngseog Lee,Youngseog Lee
标识
DOI:10.1177/09544054231225790
摘要

This paper proposes a systematic method for detecting surface defects (SDs) on specimens by performing a pilot hot (850°C–950°C) bar rolling test and suggests a processing map for billet-to-oval groove pass in bar rolling mills. Unlike previous studies, the specimens for the rolling test were prepared such that the billet surface became the surface of the specimens. A series of the rolling tests were performed at different temperature and area reduction ratios. Physical-chemical nondestructive testing was employed to detect SDs in the specimens before and after the rolling test. The depth of the SDs of the rolled specimens was measured using an optical microscope. The results revealed that the SDs depended both on the rolling parameters (temperature and reduction ratios) and the contact condition between the specimen and the roll groove during rolling, which is one of the characteristics of bar rolling that distinguishes it from flat rolling. The decrease in temperature caused an increase in the defect depth above the appropriate reduction ratio of 24.61% when the part of the specimen was in contact with the roll shoulder curve and the relief line of the oval roll groove. The proposed processing map presents a guiding path for operators in actual bar rolling mills to quickly determine a rolling condition (combination of temperature and reduction ratio), avoid SDs, and minimize defect depth within an acceptable range.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
wilson完成签到,获得积分10
1秒前
小红完成签到,获得积分10
1秒前
zp完成签到,获得积分10
1秒前
球球应助hkh采纳,获得10
1秒前
2秒前
脑洞疼应助Rao采纳,获得10
2秒前
勤劳白昼发布了新的文献求助10
2秒前
2秒前
眯眯眼的枕头完成签到,获得积分10
2秒前
顾矜应助Amandar采纳,获得10
2秒前
二狗子完成签到,获得积分20
2秒前
JamesPei应助苏铭采纳,获得10
3秒前
华仔应助220044采纳,获得10
3秒前
3秒前
SYLH应助Ridley采纳,获得10
4秒前
5秒前
咪花嗦完成签到,获得积分10
5秒前
Yimmy发布了新的文献求助10
5秒前
小马发布了新的文献求助10
5秒前
黄耀完成签到,获得积分10
5秒前
点墨完成签到 ,获得积分10
6秒前
小马甲应助7九采纳,获得10
6秒前
孙伟泰关注了科研通微信公众号
7秒前
伶俐如冰完成签到,获得积分10
7秒前
7秒前
SYLH应助gugu采纳,获得10
8秒前
新八完成签到,获得积分10
8秒前
yydragen应助老实的抽屉采纳,获得10
8秒前
8秒前
小红发布了新的文献求助10
9秒前
9秒前
9秒前
9秒前
无奈行恶完成签到,获得积分10
9秒前
机灵鸡发布了新的文献求助10
9秒前
Jasper应助科研通管家采纳,获得10
10秒前
汉堡包应助科研通管家采纳,获得10
10秒前
科目三应助科研通管家采纳,获得10
10秒前
酷波er应助科研通管家采纳,获得10
10秒前
10秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Social Research Methods (4th Edition) by Maggie Walter (2019) 2390
A new approach to the extrapolation of accelerated life test data 1000
北师大毕业论文 基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 390
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Robot-supported joining of reinforcement textiles with one-sided sewing heads 360
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4009905
求助须知:如何正确求助?哪些是违规求助? 3549896
关于积分的说明 11304149
捐赠科研通 3284441
什么是DOI,文献DOI怎么找? 1810658
邀请新用户注册赠送积分活动 886424
科研通“疑难数据库(出版商)”最低求助积分说明 811406