December 11, 2003
By: Paul Scott
Early power supplies for contact and induction welding for tube production, which were introduced in the 1950s, operated at 300 to 400 kHz. Modern power supplied, introduced in the 1990s, are variable from 200 to 400 kHz. While using any frequency in this range can produce acceptable welds for most applications, finite element analysis can be helpful for finding the optimal frequency for a particular gauge and material.
Here's Jim Colt telling us about a new video contest anyone with a Hypertherm product can easily enter. T-shirts for just entering and nice prizes, too.
Check it out!
Metal fabrication ripe for consolidation, or not? - by Tim Heston
Will the custom metal fabrication business become more consolidated in the years to come? It's hard today, but more than likely, it will depend on the fabricator's customer base.
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