(Lower left) A laser makes a hole in a material. (Upper left) The fluence of the laser is measured. (Lower right) Measurements of the fluence and the hole depth are superimposed. (Upper right) The relationship between these measurements is then determined so that hole depth can be calculated based solely on the fluence. (Image: Sakurai et al.)
The method was developed using a laser microscope and a Raspberry Pi Camera
Intuitive AI technology makes the GX-F ADVANCED Series easy to use for operators of all skill levels – especially valuable because of the ongoing shortage of skilled manufacturing workers
Semiconductors need to be inspected during every part of the manufacturing process for defects. Accurate and precise results are critical to prevent unnecessary product wastage and cost. Within industrial, in-line applications, there are numerous challenges faced by customers and this paper looks at solutions to these challenges.
Figure 1: Complex two-phase copper vapour chambers, for high-power space applications, built using laser-powder bed fusion.
Brett Diehl, of the Penn State Applied Research Laboratory, puts neural networks to work in identifying voids in additive manufacturing
Nataliya Deyneka-Dupriez and Alexander Denkl, of Lessmüller Lasertechnik, describe how OCT can be used to perform online process monitoring when using an oscillating laser beam to weld e-mobility components
Christian Knaak and Peter Abels, of Fraunhofer ILT, explain how imaging and machine learning can be used to identify weld imperfections with high accuracy
Together with the organisers of LASYS, Laser Systems Europe will be hosting a series of webcasts in June, each of which will discuss emerging applications and technologies across various aspects of laser materials processing
Coherent has extended the capabilities of its PowerMax series thermopile sensors to enable measurement of laser powers as high as 6kW
Coherent will present its industry-proven Profile Welding System (PWS), a turnkey solution for tube and profile laser welding with an integrated process sensor for welding gap detection and intelligent seam tracking.
LEF is the industry meeting point for representatives from business and science. For the 23rd time in 2020, the latest trends and developments related to the topic of laser micromachining will be presented in Fürth and discussed with regard to their application for various fields of application.
LEF 2020 will focus on the following topics:
