Shape prediction in continuous roll forming of sheet metal based on rigid rolls

金属薄板 滚压成形 金属成形 材料科学 增量板料成形 冶金 机械工程 工程制图 复合材料 工程类
作者
Jiaxin Gao,Zhongyi Cai,Xi Zhang,Zhaorui Zhang
出处
期刊:International Journal of Mechanical Sciences [Elsevier BV]
卷期号:279: 109513-109513
标识
DOI:10.1016/j.ijmecsci.2024.109513
摘要

The continuous roll forming based on rigid rolls (CRFRR) is an innovative process for rapid fabrication of doubly curved surfaces of sheet metal. The curved parts with different shapes and sizes can be obtained by adjusting the generatrix radius of the two rigid rolls or controlling the rolling reduction. In this paper, the principle of CRFRR is introduced and the process that a 3D surface of sheet metal with positive or negative Gaussian curvature is formed using two rigid rolls is analyzed based on the distribution of exit velocity. The exit velocity of material after the sheet metal passes through the roll gap is decomposed into two portions: a linearly distributed velocity and a very small additional velocity. On the basis of exit velocity decomposition and shallow shell theory, an analytical method for predicting the shape of formed surface in CRFRR process is proposed for the first time. The primary part of curvature of the formed 3D surface in longitudinal direction is determined by the linear portion of exit velocity and that in transverse direction is determined by the generatrix radius of the two rigid rolls. The curvature change in the final shape of 3D surface is induced by the additional portion of exit velocity and it is solved from equilibrium equation of shallow shell. The final curvature of the formed surface is acquired through superimposing the primary curvature and the curvature change. Numerical simulations and forming experiments have been carried out on convex and saddle-shaped parts, and the results confirm the validity and accuracy of presented method.
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
Jerry完成签到,获得积分10
1秒前
MrLiu完成签到,获得积分10
2秒前
冷傲博完成签到,获得积分10
2秒前
jeff完成签到,获得积分10
2秒前
LHZ完成签到,获得积分10
2秒前
所所应助时尚俊驰采纳,获得10
3秒前
影子芳香完成签到 ,获得积分10
4秒前
5秒前
5秒前
不必要再讨论适合与否完成签到,获得积分0
6秒前
无情夏寒完成签到 ,获得积分10
7秒前
慕青应助马士全采纳,获得10
8秒前
xuzj应助科研通管家采纳,获得10
8秒前
Rubby应助科研通管家采纳,获得30
9秒前
SciGPT应助科研通管家采纳,获得10
9秒前
9秒前
9秒前
shiizii应助科研通管家采纳,获得10
9秒前
9秒前
9秒前
9秒前
ludong_0应助科研通管家采纳,获得10
9秒前
YeeYee发布了新的文献求助10
9秒前
冷酷的松思完成签到,获得积分10
9秒前
zgt01发布了新的文献求助10
10秒前
zhang完成签到,获得积分10
10秒前
江中完成签到 ,获得积分10
12秒前
12秒前
阿玖完成签到 ,获得积分10
13秒前
jiaolulu发布了新的文献求助10
15秒前
踏雪飞鸿完成签到,获得积分10
16秒前
hannah完成签到,获得积分10
16秒前
songvv发布了新的文献求助10
17秒前
一一一应助Bin_Liu采纳,获得10
18秒前
麻果完成签到,获得积分10
20秒前
OER完成签到,获得积分10
20秒前
伦语完成签到,获得积分20
20秒前
中陆完成签到,获得积分10
21秒前
22秒前
莫西莫西完成签到,获得积分10
24秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
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 4038201
求助须知:如何正确求助?哪些是违规求助? 3575940
关于积分的说明 11373987
捐赠科研通 3305747
什么是DOI,文献DOI怎么找? 1819274
邀请新用户注册赠送积分活动 892662
科研通“疑难数据库(出版商)”最低求助积分说明 815022