Cold formed plasma
Our cold-formed plasma and laser consumables give a significant improvement in cut quality over conventional machined nozzles. Feed rates can be increased by up to 10% and still achieve improved cut quality. These advantages are a direct result of the mirror finish and curved internal nozzle profile.
Dawson Shanahan works with leading global plasma OEMs, supplying them with high quality cold-formed plasma consumables. Laser marking and packaging is provided to customer requirements, and we also offer a design and development capability to reduce waste.
Generally speaking, machined nozzles have an internal surface finish of around 1µm. Our cold formed nozzles have a surface finish of around 0.1µm. This gives better, less turbulent gas flow resulting in the improved cut quality and speed.
There is a marked improvement in cut quality and this together with increased feed rate offers the end user a significant cost saving through reduced machining time and reduced clean-up.
YAG Laser Nozzles
YAG laser technology and optical fibre delivery systems are creating new laser application areas. As a result the laser’s significance as a flexible tool for manufacturing is growing rapidly.
YAG laser technology has a price advantage over more complex five-axis CO2 laser based gantry systems for three-dimensional part cutting.
YAG nozzles are traditionally very difficult and expensive to manufacture due to the very long tapered bore.
After extensive R&D, Dawson Shanahan produces COLD FORMED YAG nozzles up to 75mm long and we are confident that this length can be increased with further development.
CO2/YAG Cold Formed Laser Nozzles benefits:
- improved cut quality
- increased feed rates
- significant cost savings
- reduced machining time
- reduced clean up
Laser Mirror Blanks
Laser Mirror Blanks also benefit from manufacturing by cold forming. Lower cost is achieved as well as uniform grain size, and most importantly the deformation in the process reduces the problems caused by porous or defective flaws in the parent material.