Modeling of laser drilled microhole profiles in carbon fiber composites in low fluence regime

Frank F. Wu

doi:10.1117/12.841062

17 February 2010 Modeling of laser drilled microhole profiles in carbon fiber composites in low fluence regime

Frank F. Wu

Proceedings Volume 7584, Laser Applications in Microelectronic and Optoelectronic Manufacturing XV; 758412 (2010) https://doi.org/10.1117/12.841062
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

A model describing laser microhole drilling processes in polymers has been developed, which can predict the drilling profiles of the microholes for several kinds of specific incident beam profiles. The report tries to answer how the peak fluence, the beam diameter (or beam shape), and the material parameters affect the hole shapes. The model not only provides the drilling hole profiles but also explains why hole drilling stops under certain circumstances, such as a stabilized or saturated drilling occurs, under this condition more shots applied to the process will not generate any further drilling effect. Thus high efficient laser processing can be predicted from the model, i.e. what are the best laser parameters for certain processed materials including material thickness. This model is suitable for most well defined beams and materials such as polymers, polyimide, polymethylmethacrylate (PMMA), polyethylene terephthalate (PET), fiber reinforced composites or CFC, glass fiber composites, and some ceramics. This paper mainly concentrates on the modeling, while the comparison of the modeling and the experimental data will be discussed in the other paper to be published in the same volume of SPIE.

Citation Download Citation

Frank F. Wu "Modeling of laser drilled microhole profiles in carbon fiber composites in low fluence regime", Proc. SPIE 7584, Laser Applications in Microelectronic and Optoelectronic Manufacturing XV, 758412 (17 February 2010); https://doi.org/10.1117/12.841062

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available