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ns Pulsed Welding – the new technology for thin-section similar and dissimilar metal joining.
Opening up new possibilities with Oscillation Welding.
The recent introduction on high power single mode fiber lasers has opened up the capabilities of oscillation welding to a point where it can be competitive with high power multimode welding. The greater control of weld profile and heat input can yield significant benefits in real world welding applications.
The webinar will cover:
- Welding basics – differences between conduction / keyhole / oscillation welding
- Single mode vs multimode lasers
- Pros and cons of oscillation welding vs conventional fixed head welding
- Equipment required – scanners & software and other hardware options
- Basics of oscillation welding including key variables and processing parameters
- Results with various materials including dissimilar metal combinations
- Examples of applications that benefit significantly from oscillation welding
Pulsed ns lasers are best known for marking, engraving and other ablative processes. Their use for metal joining is relatively new and opens up new possibilities through the unique control of heat input offered by these laser sources. Their low average powers (≤250W), low pulse energy (≤1.5mJ), pulse durations typically in the 10-2000ns range, peak powers up to 10kW, and pulse repetition frequencies >50kHz differentiate them significantly from conventional CW, QCW and DPSS sources. The ability to optimise the output energy and power characteristics to specific applications is key in their use for joining.
The webinar will cover:
- The ns laser sources
- The ns joining process
- Process benefits vs conventional welding processes
- Application to similar metal combinations
- Application to dissimilar metallic combinations
- Flexibility in joint configuration
- Physical properties of ns welded joints
- Metallurgy of ns welded joins
- Key applications for ns welding
NOTE: SPI’s ns welding patents and patent applications can be used with lasers purchased from SPI