The Influence of Pulse Width and Energy on Temperature Field in Metal Irradiated by Ultrashort-Pulsed Laser

Lu, Lizhong; Shi, Yunfei; Xu, Chunming; Xu, Guidong; Wang, Jijun; Xu, Bo

doi:10.1016/j.phpro.2012.03.516

Cited by 7 publications

(2 citation statements)

References 12 publications

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“…Shorter pulses are associated with less heating to the cutting material. 36 Though these effects were not studied as part of this work, our results suggest that parameters which serve to lower the heat transmitted to the cutting material should have less of an effect on the Young’s modulus of laser-cut PDMS.…”

Section: Resultsmentioning

confidence: 85%

The effect of laser cutting on the Young’s modulus of Polydimethylsiloxane

Helgason

Fathy

Lai

2022

Journal of Micromanufacturing

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Laser cutting is often used in the fabrication of Polydimethylsiloxane (PDMS) substrates for novel microdevices such as wearable sensors and microfluidic devices. PDMS is a thermosetting polymer whose material properties are affected by the thermal conditions during the curing process. Since laser cutting exposes the cutting material to high temperatures, this might affect the heat-sensitive material properties. In this work, we examine how laser cutting affects the stiffness of PDMS by measuring the Young’s modulus of PDMS and comparing that to the Young’s modulus of laser-cut PDMS. We find an increase in the Young’s modulus from 0.34 to 0.37 MPa (9%) for PDMS mixed at a ratio of 20:1 base to curing agent. For 10:1 ratio PDMS, we find the increase in Young’s modulus is 31%, from 1.02 to 1.34 MPa.

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Section: Resultsmentioning

confidence: 85%

The effect of laser cutting on the Young’s modulus of Polydimethylsiloxane

Helgason

Fathy

Lai

2022

Journal of Micromanufacturing

View full text Add to dashboard Cite

show abstract

“…During several laser materials processing, phase changes occur and the thermo-physical properties of the material should be assessed accordingly. It is worth to mention that for ultrafast laser radiation the above mentioned concept has to be modified by introducing a so-called two-temperature model [28]. A main advantage of using ultrafast laser processes is that melting or heat affected zones can be almost avoided by minimizing thermal effects [29][30][31].…”

Section: -Fundamental Aspects Of Laser Materials Processingmentioning

confidence: 99%