CategoryPre-Stretch & Plug Assist
Plug Chilling During Thermoforming
Diagnose local freezing at plug contact that causes chill marks, stress whitening, tearing, and poor thickness distribution.
Thermoforming Wiki
Diagnose thermoforming defects by symptom, cause, process area, and material.
CategoryPre-Stretch & Plug Assist
Plug Marks on Thermoformed Parts
Prevent visible plug witness marks by controlling sheet softness, plug temperature, finish, covering, contact pressure, alignment, and timing.
CategoryPre-Stretch & Plug Assist
Plug Sticking in Thermoforming
Correct sheet adhesion to a plug assist caused by excessive contact temperature, high friction, contamination, poor release, or prolonged dwell.
CategoryPre-Stretch & Plug Assist
Plug and Vacuum Timing Errors
Coordinate plug engagement and vacuum or pressure application to prevent uneven walls, webbing, chilling, tearing, and premature tool contact.
CategoryPre-Stretch & Plug Assist
Plug-Assisted Wall Thickness Imbalance
Correct wall thickness shifted by plug shape, penetration, temperature, friction, clearance, motion, or an incorrect pre-stretch profile.
CategoryPre-Stretch & Plug Assist
Plug-Induced Tearing
Prevent sheet rupture caused by aggressive plug speed, sharp plug geometry, misalignment, low sheet temperature, poor pre-stretch, or excessive penetration.
CategoryVacuum, Pressure & Pneumatics
Pneumatic Exhaust Restriction
Find blocked silencers, small exhaust ports, kinked tubing, and trapped backpressure that slow valves, cylinders, clamps, plugs, or pressure release.
CategoryMaterials & Sheet Quality
Polycarbonate Moisture Blistering
Prevent bubbles in thermoformed polycarbonate by following grade-specific drying, protected storage, controlled handling, and verified sheet temperature.
CategoryMaterials & Sheet Quality
Polycarbonate Stress Cracking
Reduce polycarbonate cracking caused by residual forming stress, sharp geometry, forced assembly, incompatible chemicals, machining, or poor drying.
CategoryMaterials & Sheet Quality
Polyethylene Shrinkage and Distortion
Control HDPE and other polyethylene distortion by managing orientation, grade, wall distribution, mold temperature, cooling, geometry, and release timing.