Energy Director Design For Ultrasonic Welding. The energy director design requires a means of alignment such as pins and sockets aligning ribs tongue and groove designs or fixturing. NEW Round Energy Director Design Dukane introduces Round Energy Director ED designs for ultrasonic welding process.
Where height greater than 020 is indicated two or more directors should be provided with the sum of heights. Specific applications may require slight modification. The secret of ultrasonic welding is focusing the ultrasound with an energy director.
These are suggested guidelines for typical joint proportions.
The energy directors 15 include at least first and second facets. The main feature of this joint is a small 90 or 60 triangular shaped ridge molded into one of the mating surfaces. The butt joint with energy director is the most common joint design used in ultrasonic welding and the easiest to mold into a part. Round ED provides plastic part manufacturers a more robust ED design that eliminates variability associated with inconsistent shape size and melt characteristics of prevailing sharp ED design.