Hydrocarbon residue on titanium parts is usually removed using acetone or alcohol based solvents. The effect of the processing parameters on the weld bead geometry was examined, and the microstructure and mechanical properties of the optimal joint were investigated. Continued use of this site indicates your consent. The results show that the focal position is a key parameter in high-power fiber laser welding of thick plates. For example, a 3-kW CO 2 laser can effectively weld steel up to about 0. The advantages of laser welding are being exploited in myriad applications across the metal fabrication industry.
Laser welding: Lack of fusion / penetration
We apologise for any inconvenience caused. A pulsed laser beam is switched on and off during the welding process at a frequency somewhere between Hz, such that the energy is applied to the joining area in a series of discrete pulses. Keyhole Mode Laser Welding. Therefore, this study was Recommended Lasers for Titanium Welding There are four main categories of lasers that are suitable for welding Titanium: Cover gases are absolutely required when laser welding titanium. OmniWELD combines four different ICI measurement modes seam position, workpiece height, keyhole depth and weld surface into a single simultaneous monitoring operation.
News from EWI – Conduction Mode vs. Keyhole Mode Laser Welding
In some cases, lasers provide the only viable welding option. The key process parameters for laser welding include laser power, weld speed, and focusing optics. Some of the more important of these have been noted in this article. The high travel speeds used in laser welding minimize diffusion of heat into the surrounding metal. Graphical abstract Download high-res image KB Download full-size image. Laser welding of tailored blanks takes advantage of this benefit by producing large sheet metal blanks between bare or coated steels, which exhibit little or no discernible distortion.
Cookies are used by this site. You must be logged in as an individual user to share content. Metal enclosures can be joined without damage to electronic devices packaged inside. Slower welding speed is one method of reducing hardness. In this paper a model-based penetration depth estimation technique suitable for the production environment is developed. Plasma, which may form as a result of the interaction between the high- power-density laser beam and metal vapor streaming from the keyhole, is suppressed using a flow of nonreactive or inert gas.