MW Industries, Inc. - Precision Metal Components
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Troubleshooting Guide

/Troubleshooting Guide
Troubleshooting Guide 2018-02-22T17:16:29+00:00

Troubleshooting Threaded Insert Installation in Plastics

  • Decrease pressure
  • Increase weld time
  • Imcrease amplitude (change booster)
  • Decrease down speed
  • Increase insert interference
  • Insert is too small or hole is too large
  • Increase hole depth
  • Decrease screw length
  • Decrease amplitude (change booster)
  • Air cool the horn
  • If possible, contact plastic rather than insert
  • Check coupling between horn, booster and converter
  • Decrease weld time
  • Decrease amplitude (change booster)
  • Increase pressure
  • Increase down speed
  • Decrease weld time
  • Decrease hold time
  • Decrease amplitude (change booster)
  • Increase pressure
  • Increase down speed
  • Insert is too large or hole is too small
  • Improper fixturing
  • Power required exceeds capability of power supply
  • Use sound enclosure or hearing protectors
  • Start the ultrasonics just prior to the horn contacting the insert
  • Decrease amplitude (change booster)
  • Increase pressure
  • Increase down speed
  • If possible, contact plastic rather than insert
  • Use hardened steel or carbide faced horn
  • Decrease amplitude (change booster)
  • Insert is too large or hole is too small
  • Plastic is too abrasive
  • Ensure that ultrasonics is turned on
  • Decrease pressure
  • Walls surrounding hole are too thin
  • Increase weld time
  • Decrease amplitude (change booster)
  • Decrease down speed
  • Enlarge hole diameter
  • Increase hole depth
  • Insert is too large or hole is too small
  • Insert is too long
  • Adjust positive stop to limit depth of insertion
  • Decrease weld time
  • Insert is too large or hole is too small
  • Increase pressure
  • Decrease down speed
  • Decrease amplitude (change booster)
  • Increase weld time
  • Increase hole depth
  • Adjust positive stop
  • Check fixturing
  • Horn is at the end of its stroke
  • Decrease pressure
  • Decrease down speed
  • Decrease amplitude (change booster)
  • Tune power supply
  • Check for loose studs
  • Check coupling between horn and booster
  • Power required exceeds capability of power supply