CategoryVacuum, Pressure & Pneumatics
Blocked Mold Vent Holes
Recognize blocked mold vents that cause local soft detail, trapped air, dull spots, and recurring incomplete features, then restore the air path safely.
Thermoforming Wiki
Diagnose thermoforming defects by symptom, cause, process area, and material.
CategoryTrimming & Secondary Operations
Bonding Failure on Thermoformed Parts
Diagnose weak adhesive bonds caused by contamination, incompatible chemistry, residual stress, surface treatment, poor fit, moisture, or cure conditions.
CategoryHeating & Sheet Temperature
Brittle Tearing During Thermoforming
Diagnose sharp sheet splits caused by low forming temperature, cold tooling, damaged edges, aggressive plug motion, sharp radii, or excessive draw.
CategoryTrimming & Secondary Operations
Burrs and Whiskers After Thermoforming Trim
Reduce burrs, feathered edges, and polymer whiskers by correcting tool sharpness, punch clearance, cutting direction, support, and trim temperature.
CategoryTrimming & Secondary Operations
CNC Chatter on Thermoformed Parts
Eliminate chatter marks and dimensional variation by improving fixture rigidity, tool condition, spindle runout, feed, speed, support, and toolpath.
CategoryMold Design & Material Distribution
Chill Marks in Thermoforming
Identify chill marks created by premature contact with a cold mold or plug and correct tool temperature, contact sequence, surface finish, and sheet condition.
CategoryClamping, Sheet Loading & Tool Setup
Clamp Burn Marks
Correct scorching and discoloration near the clamp frame caused by excessive perimeter heat, hot metal contact, failed zones, long dwell, or poor shielding.
CategoryClamping, Sheet Loading & Tool Setup
Clamp Frame Deflection
Find clamp-frame bending that opens gaps, changes sheet tension, causes seal leakage, or produces asymmetric forming under heat and load.
CategoryClamping, Sheet Loading & Tool Setup
Clamp Frame Heat Sink
Correct cold sheet margins and perimeter forming defects caused by heat loss into clamp frames, rails, masks, and heavy edge hardware.
CategoryClamping, Sheet Loading & Tool Setup
Clamp Jaw Contamination
Remove resin, oil, dust, release agent, masking fragments, and oxidation that reduce clamp grip or mark the sheet edge.