Layer-wise control of selective laser melting by means of inline melt pool area measurements

材料科学 选择性激光熔化 过程(计算) 过程控制 热的 计算机科学 机械工程 图层(电子) 复合材料 工程类 微观结构 操作系统 物理 气象学
作者
Ema Vasileska,Ali Gökhan Demir,Bianca Maria Colosimo,Barbara Previtali
出处
期刊:Journal of Laser Applications [Laser Institute of America]
卷期号:32 (2) 被引量:45
标识
DOI:10.2351/7.0000108
摘要

Industrial selective laser melting (SLM) systems commonly employ a fixed set of process parameters throughout the build of the same component. The process parameters are generally found by experimental studies carried out on simple geometries which achieve high density. A common issue is related to the fact that the single set of parameters can be inadequate for small sections and overhang regions where thermal accumulation can occur. An online adaptation of process parameters is required for avoiding such issues and defects that commonly arise, such as the swelling phenomenon. A real-time control strategy would be desirable. However, the real-time control requires fast acquisition and reaction in the order of microseconds. Another approach is to provide corrective actions in a layer-wise fashion by elaborating the monitoring data collected during the previous layer. Therefore, this work proposes a layer-wise control strategy based on coaxial melt pool monitoring. For this purpose, an open SLM platform is employed, fitted with a complementary metal-oxide semiconductor camera, to view the process emission in the near infrared region. Initially, the nominal level of the melt pool area is defined on a simple geometry. Then, the melt pool area is monitored on more complex shapes. The melt pool area measured on each scan vector of a given layer is used to compensate the energy density of the same scan vector at the next layer. The results show an effective reduction of swelling defects on small geometries with fine details.
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
快乐的青柏完成签到,获得积分10
刚刚
hanye完成签到 ,获得积分10
刚刚
大胆的夏天完成签到,获得积分10
2秒前
影子完成签到 ,获得积分10
4秒前
wonhui完成签到,获得积分20
6秒前
哈哈哈完成签到,获得积分10
9秒前
Orange应助yar采纳,获得10
10秒前
m7m发布了新的文献求助30
11秒前
球球完成签到,获得积分10
12秒前
坦率白萱应助空禅yew采纳,获得10
12秒前
迷路宛筠完成签到 ,获得积分10
14秒前
Liu应助kk采纳,获得50
15秒前
小二郎应助樱桃窝窝头采纳,获得10
16秒前
坚定小熊猫完成签到,获得积分20
20秒前
21秒前
21秒前
25秒前
陶淘淘完成签到,获得积分10
26秒前
量子星尘发布了新的文献求助10
26秒前
李健的小迷弟应助yar采纳,获得10
26秒前
28秒前
T123456789完成签到,获得积分10
28秒前
MPC完成签到,获得积分10
29秒前
MingqingFang发布了新的文献求助10
29秒前
肖肖发布了新的文献求助10
31秒前
单凝完成签到,获得积分10
32秒前
wyw完成签到 ,获得积分10
36秒前
一只学术小白完成签到,获得积分10
38秒前
烟花应助茸茸茸采纳,获得30
39秒前
Owen应助zwy109采纳,获得10
41秒前
41秒前
明朗完成签到 ,获得积分10
41秒前
李健应助达布妞采纳,获得10
44秒前
高高完成签到,获得积分10
44秒前
吴兰田完成签到,获得积分10
45秒前
47秒前
48秒前
50秒前
完美世界应助肖肖采纳,获得10
51秒前
DE2022发布了新的文献求助10
51秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
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 3988997
求助须知:如何正确求助?哪些是违规求助? 3531351
关于积分的说明 11253520
捐赠科研通 3269928
什么是DOI,文献DOI怎么找? 1804830
邀请新用户注册赠送积分活动 882063
科研通“疑难数据库(出版商)”最低求助积分说明 809068