Laser polishing of tool steel using a continuous-wave laser assisted by a steady magnetic field
Continuous-wave (CW) lasers are widely used in laser polishing, but with CW laser polishing, it is difficult to reduce the surface roughness to 0.2 µm from an original value exceeding 1.0 µm. The aim of this study is to develop an innovative method of laser polishing assisted by a steady magnetic fi...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
AIP Publishing LLC
2020-02-01
|
Series: | AIP Advances |
Online Access: | http://dx.doi.org/10.1063/1.5116686 |
id |
doaj-5e10b55a6a794c5a847d44810cc2820a |
---|---|
record_format |
Article |
spelling |
doaj-5e10b55a6a794c5a847d44810cc2820a2020-11-25T00:36:20ZengAIP Publishing LLCAIP Advances2158-32262020-02-01102025319025319-910.1063/1.5116686Laser polishing of tool steel using a continuous-wave laser assisted by a steady magnetic fieldHaibing Xiao0Yongquan Zhou1Mingjun Liu2Xiaomei Xu3Intelligent Manufacturing and Equipment School, Shenzhen Institute of Information Technology, Shenzhen 518172, Guangdong, ChinaIntelligent Manufacturing and Equipment School, Shenzhen Institute of Information Technology, Shenzhen 518172, Guangdong, ChinaIntelligent Manufacturing and Equipment School, Shenzhen Institute of Information Technology, Shenzhen 518172, Guangdong, ChinaIntelligent Manufacturing and Equipment School, Shenzhen Institute of Information Technology, Shenzhen 518172, Guangdong, ChinaContinuous-wave (CW) lasers are widely used in laser polishing, but with CW laser polishing, it is difficult to reduce the surface roughness to 0.2 µm from an original value exceeding 1.0 µm. The aim of this study is to develop an innovative method of laser polishing assisted by a steady magnetic field to overcome that bottleneck and produce smoother surfaces. Two experiments confirm the hypothesis that the molten pool overflows during melting peaks to flow into valleys in CW laser polishing, resulting in secondary roughness that causes the aforementioned quality bottleneck. To either reduce or eliminate this secondary roughness, a steady magnetic field is used during CW laser polishing to suppress the overflow of the molten pool. A three-dimensional surface profiler, a scanning electron microscope, and a nanometer indentation tester are used to characterize and analyze the microstructure and properties of the materials. The experimental results show that the Lorentz force due to the steady magnetic field plays an important suppression role in reducing the secondary roughness.http://dx.doi.org/10.1063/1.5116686 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Haibing Xiao Yongquan Zhou Mingjun Liu Xiaomei Xu |
spellingShingle |
Haibing Xiao Yongquan Zhou Mingjun Liu Xiaomei Xu Laser polishing of tool steel using a continuous-wave laser assisted by a steady magnetic field AIP Advances |
author_facet |
Haibing Xiao Yongquan Zhou Mingjun Liu Xiaomei Xu |
author_sort |
Haibing Xiao |
title |
Laser polishing of tool steel using a continuous-wave laser assisted by a steady magnetic field |
title_short |
Laser polishing of tool steel using a continuous-wave laser assisted by a steady magnetic field |
title_full |
Laser polishing of tool steel using a continuous-wave laser assisted by a steady magnetic field |
title_fullStr |
Laser polishing of tool steel using a continuous-wave laser assisted by a steady magnetic field |
title_full_unstemmed |
Laser polishing of tool steel using a continuous-wave laser assisted by a steady magnetic field |
title_sort |
laser polishing of tool steel using a continuous-wave laser assisted by a steady magnetic field |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2020-02-01 |
description |
Continuous-wave (CW) lasers are widely used in laser polishing, but with CW laser polishing, it is difficult to reduce the surface roughness to 0.2 µm from an original value exceeding 1.0 µm. The aim of this study is to develop an innovative method of laser polishing assisted by a steady magnetic field to overcome that bottleneck and produce smoother surfaces. Two experiments confirm the hypothesis that the molten pool overflows during melting peaks to flow into valleys in CW laser polishing, resulting in secondary roughness that causes the aforementioned quality bottleneck. To either reduce or eliminate this secondary roughness, a steady magnetic field is used during CW laser polishing to suppress the overflow of the molten pool. A three-dimensional surface profiler, a scanning electron microscope, and a nanometer indentation tester are used to characterize and analyze the microstructure and properties of the materials. The experimental results show that the Lorentz force due to the steady magnetic field plays an important suppression role in reducing the secondary roughness. |
url |
http://dx.doi.org/10.1063/1.5116686 |
work_keys_str_mv |
AT haibingxiao laserpolishingoftoolsteelusingacontinuouswavelaserassistedbyasteadymagneticfield AT yongquanzhou laserpolishingoftoolsteelusingacontinuouswavelaserassistedbyasteadymagneticfield AT mingjunliu laserpolishingoftoolsteelusingacontinuouswavelaserassistedbyasteadymagneticfield AT xiaomeixu laserpolishingoftoolsteelusingacontinuouswavelaserassistedbyasteadymagneticfield |
_version_ |
1725305907604094976 |