TY - GEN
T1 - Nanosecond pulsed laser micro-machining of PMMA-based microfluidic channels
AU - Teixidor, Daniel
AU - Ciurana, Joaquim
AU - Thepsonthi, Thanongsak
AU - Özel, Tuǧrul
N1 - Funding Information:
The authors would like to express their gratitude for the collaboration, the guidance and the facilities provided during the experiments at Rutgers University. This work was partially carried out with the grant supports from the European Commission project IREBID ( FP7-PEOPLE-2009-IRSES-247476 ).
PY - 2012
Y1 - 2012
N2 - This paper reports an investigation on the effects of nanosecond laser processing parameters on the depth and width of microchannels fabricated from polymethylmethacrylate (PMMA). The Nd:YAG solid-state pulsed laser has a wavelength of 1064 nm and a measured maximum power of 4.15 W. The laser processing parameters are varied in a scanning speed range of 400 to 800 pulses/mm, a pulse frequency range of 5 to 11 Hz, a Q-switch delay time range of 170 to 180 μs. Main effects plots and microchannel images are utilized to identify the effects of the process parameters for improving material removal rate and surface quality simultaneously for laser micromachining of microchannels in PMMA polymer. It is observed that channel width and depth decreased linearly with increasing Q-switch delay time (hence average power) and increased non-linearly with increasing scanning rate and not much affected by the increase in pulse frequency.
AB - This paper reports an investigation on the effects of nanosecond laser processing parameters on the depth and width of microchannels fabricated from polymethylmethacrylate (PMMA). The Nd:YAG solid-state pulsed laser has a wavelength of 1064 nm and a measured maximum power of 4.15 W. The laser processing parameters are varied in a scanning speed range of 400 to 800 pulses/mm, a pulse frequency range of 5 to 11 Hz, a Q-switch delay time range of 170 to 180 μs. Main effects plots and microchannel images are utilized to identify the effects of the process parameters for improving material removal rate and surface quality simultaneously for laser micromachining of microchannels in PMMA polymer. It is observed that channel width and depth decreased linearly with increasing Q-switch delay time (hence average power) and increased non-linearly with increasing scanning rate and not much affected by the increase in pulse frequency.
KW - Laser processing
KW - Microfluidics
KW - PMMA
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M3 - Conference contribution
AN - SCOPUS:84869790941
SN - 9781622762477
T3 - Transactions of the North American Manufacturing Research Institution of SME
SP - 536
EP - 543
BT - 40th North American Manufacturing Research Conference 2012 - Transactions of the North American Manufacturing Research Institution of SME
T2 - 40th Annual North American Manufacturing Research Conference, NAMRC40
Y2 - 4 June 2012 through 8 June 2012
ER -