WebMar 21, 2015 · The lens and the iridium coating were most likely stressed either by force or heat and expanded or flexed. The two materials will not do this exactly the same and at some point cracks can appear in the coating. When the stress is gone the cracks will remain. Seems like this may be whats happening... Cargo JFL lover 2,248 693 Charlotte, … WebDec 29, 2016 · I just recently noticed cracks forming above the top of the headlight lens. The rest of the lens is in perfect condition. This has occurred on both headlights. These are retrofit headlights, but the only thing aftermarket is the wiring harness. The housings are 100% OEM and unmodified.
Stress cracks on top of Headlight casing? - Ford Flex Forum
WebPicture the lens with stress fractures the same way you would picture the windshield of your car with cracks in it. We know that a car windshield with a crack in it is less durable than the windshield without cracks in it. We also know that a windshield with one crack can become a windshield with many cracks in it in a very short amount of time. WebApr 4, 2024 · Cracks in the left and/or right headlamp lenses (See attachments) Attachments File Description Stress Crack Example 1.jpg Cracking example Stress Crack Example … profinet io device stack
Stress Cracks in the Left and/or Right Headlamp Lenses
WebMay 28, 2024 · danshonin. I got them on my 2024 Audi Allroad headlamps within 3 years. I used to work for VW and a quality engineer told me that it looked like internal stress cracks in the plastic. With injected molded materials, there can be internal stresses in the material, depending on mold temperature, material flow, cooling, etc. WebMar 30, 2024 · The most common cause of a windshield stress crack is a large variation in temperature. For example, this can occur if your car has been sitting in the hot sun all day … WebOct 1, 2024 · This test consists of PC part immersion in a solution of toluene and n-propyl alcohol, and the stressed part cracks. Absence or inefficiency in the annealing lens process, stress after attachment lens on headlight housing, headlight stress after assembly on the vehicle body, and thermal fatigue inherent to part uses can cause stress on lens. profinet meaning