Influence of spatial power modulation on pore and crack formation in laser beam welding of aluminum Heinen, P. ; Eichler, F. ; Haeusler, A. ; Olowinsky, A. ; Aden, M. ; Gillner, A. ; Poprawe, R. Abstract Publication: Journal of Laser Applications Pub Date: May 2019 DOI: 10.2351/1.5085460 Bibcode: 2019JLasA..31b2013H