Accepted author manuscript, 3.25 MB, PDF document
Available under license: CC BY: Creative Commons Attribution 4.0 International License
Final published version, 18.2 MB, PDF document
Available under license: CC BY: Creative Commons Attribution 4.0 International License
Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Automated Laser Ablation of Inhomogeneous Metal Oxide Films to Manufacture Uniform Surface Temperature Profile Electrical Heating Elements
AU - Ingham, Joshua
AU - Lewis, John
AU - Cheneler, David
PY - 2019/8/2
Y1 - 2019/8/2
N2 - This paper presents automated laser ablation strategies to improve the temperature distribution across the surface of inhomogeneous Ni-Fe-Cr-NiO electrical heating elements during joule heating. A number of iterative closed-loop laser control algorithms have been developed and analyzed in order to assess their impact on the efficacy of the heating element, in terms of homogeneous temperature control, and on the implications for automated fabrication of inhomogeneous metal oxide films. Analysis shows that the use of the leading method, i.e. use of a temperature dependent variable power approach with memory of previous processes, showed a 68% reduction in the standard deviation of the temperature distribution of the heating element and a greater uniformity of temperature profile as compared to existing manual methods of processing.
AB - This paper presents automated laser ablation strategies to improve the temperature distribution across the surface of inhomogeneous Ni-Fe-Cr-NiO electrical heating elements during joule heating. A number of iterative closed-loop laser control algorithms have been developed and analyzed in order to assess their impact on the efficacy of the heating element, in terms of homogeneous temperature control, and on the implications for automated fabrication of inhomogeneous metal oxide films. Analysis shows that the use of the leading method, i.e. use of a temperature dependent variable power approach with memory of previous processes, showed a 68% reduction in the standard deviation of the temperature distribution of the heating element and a greater uniformity of temperature profile as compared to existing manual methods of processing.
KW - heating element
KW - automated manufacture
KW - temperature distribution
KW - metal oxide films
KW - laser ablation
U2 - 10.3390/jmmp3030065
DO - 10.3390/jmmp3030065
M3 - Journal article
VL - 3
JO - Journal of Manufacturing and Materials Processing
JF - Journal of Manufacturing and Materials Processing
SN - 2504-4494
IS - 3
M1 - 65
ER -