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.
The Bystronic Xpert press brake, with revolutionary ByVision Bending control, intuitive operator interface and dynamic hydraulic crowning system, provides the ultimate bending experience. Voice Control for managing manual operator functions; LAMS ensures exact angles from the first bend regardless of material; PartID code scanning for program loads and part traceability.
From the Web: Death of manufacturing greatly exaggerated; entire city to be built on stilts - by Vicki Bell
Highlights for fabricators from the past week’s Web articles — Ohio politician says death of manufacturing greatly exaggerated; an entire city to be built on stilts; working women to outnumber men in Canada, but not in trades; metal shaper builds iconic cars; and another builds rat rods.
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