With keyhole laser welding, very high beam intensities are used to process the material. Unlike heat conduction welding, here, a metal vapor is created in addition to the metal melt.

Keyhole welding (deep penetration welding) uses a high-output laser for high-speed welding. The narrow, deep penetration allows for uniform welding of internal structures. Because the heat-affected …

A laser welding keyhole is not a physical slot cut into the metal, but a transient, vapor-filled capillary created by high-intensity laser light. Unlike traditional welding that relies on surface heat conduction, …

The high power density laser light forms a filament of vaporized material, known as a keyhole, which extends into the material and provides a conduit for the laser light to be efficiently delivered into the …

With keyhole welding, a narrow vaporized cavity (the keyhole) is created within the material using a high-energy laser. This makes deep, thin, and robust welding possible, which are perfect for high …

Sep 15, 2025 · In this work, a semi-analytical model that employs an iterative ray-tracing technique for the calculation of multiple reflections inside the keyhole is described.

First, the fundamentals of the laser welding process and its physics such as beam propagation, keyhole formation and melt pool dynamics are addressed. The main approaches for modeling energy transfer …

In this example, we observe dissimilar material mixing during laser welding in keyhole mode. FLOW-3D WELD predicts the flow inside the melt pool and vortex that is created behind the...

At EB Industries we use keyhole mode welding for applications like turbine blades, valves going into space, tank bearings, etc. Both electron beam and lasers are capable of making high quality keyhole …

Feb 21, 2018 · Laser keyhole welding offers numerous benefits in the right applications, including precise control of penetration depth, a very small beam size for a small heat-affected zone, great …