“The Resistance Welding Troubleshooting Tool is one of the top 3 systems I have encountered in my 40+ year career.” – Art Schuneman, Helgeson
Learn when you might choose one technology over the other in this blog piece: Nd:YAG for Fiber Laser Welding?
Use a picosecond laser for corrosion resistant black marking on stainless steel alloys: UDI marking, banding, part traceability
What’s all the fuss about? Read about micromachining with a femtosecond laser in our blog.
What is it and what can you do with it?
Laser soldering and plastic welding; both possible with direct diode lasers
Read our blog piece Bringing Laser Technology In House: 6 Simple Steps to Success which outlines some of the pitfalls and how to avoid when moving from contract manufacturing.
How to design ring projections for hermetic sealing.
Configure your Glovebox here…
Flexible circuit design for hot bar reflow soldering
Check out these tips and tricks for successful setup of your micro tig welding application.
Laser or resistance technology? Which do you choose when it’s critical to prevent external environmental conditions from penetrating the package?
Projection welding of Fasteners to Hot Stamped Boron Components
Tips for Improving Tab to Terminal Connections
Industry increasingly relies on sensors in both factories and products. New sensor technologies mean new product capabilities with improved performance and efficiency.
Innovative and efficient process utilizes a laser to strip polymer coating to expose metal conductor.
Visit our blog for more information
High production rate + high yield = industrial process success. Understanding both the process requirements and production environment allows companies to optimize their production rates resulting in lower cost per part and higher profit.
High Frequency Inverter Welders use submillisecond pulsewidth modulation (switching) technology with closed-loop feedback to control the weld energy in submillisecond increments. Three phase input current is full wave rectified to DC and switched at (up to) 25 kHz to produce an AC current at the primary of the welding transformer. The secondary current is then rectified to produce DC welding current with an imposed, low-level, AC ripple. The high-speed feedback circuitry enables the inverter power supply to adapt to changes in the secondary loop resistance and the dynamics of the welding process. For example, a 25 kHz inverter power supply adjusts the output current every 20 microseconds after rectification, which also allows the weld time (duration of current) to be controlled accurately in increments as small as 0.1 milliseconds.
The high frequency closed loop feedback can be used to control (maintain constant) either current, voltage, or power while also monitoring another of the same three parameters.
Additional benefits of high frequency switching technology include reduced power consumption, smaller welding transformers, and the use of a very short pre-weld “check pulse” to test electrode and parts positioning prior to executing a weld. The result of this pre-weld check can be used to inhibit the weld by setting check limits.
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