Podcast
Questions and Answers
Which step involves using the tap test or ultrasonic test to map out the damage?
Which step involves using the tap test or ultrasonic test to map out the damage?
- Step 2: Damage Removal
- Step 5: Curing the Repair
- Step 1: Investigating & Mapping the Damage (correct)
- Step 3: Layup of the Repair Plies
What should be done after trimming out the damage to a smooth round or oval shape?
What should be done after trimming out the damage to a smooth round or oval shape?
- Applying Top Coat
- Curing the Repair
- Clean the surface with an approved solvent and cheese cloth. (correct)
- Layup of the Repair Plies
Which method can improve the properties of a wet layup repair?
Which method can improve the properties of a wet layup repair?
- Use of scotch or sand paper
- Heater blanket cure
- SRM determination
- Double Vacuum Debulk Method (DVD) (correct)
What is the temperature range at which most prepregs and film adhesives cure?
What is the temperature range at which most prepregs and film adhesives cure?
Why must the repair ply material and orientation match that of the parent structure?
Why must the repair ply material and orientation match that of the parent structure?
When should the vacuum bag be removed from the repair?
When should the vacuum bag be removed from the repair?
What is the purpose of vacuum bagging in the repair process?
What is the purpose of vacuum bagging in the repair process?
What are typical failures found during inspection of lightning protection strips?
What are typical failures found during inspection of lightning protection strips?
What is a disadvantage of using an external patch in repairs?
What is a disadvantage of using an external patch in repairs?
Why are external patches usually stepped in repairs?
Why are external patches usually stepped in repairs?
Which materials can be used for external bonded repair according to the text?
Which materials can be used for external bonded repair according to the text?
What is important to avoid in lightning protection strips for a radome?
What is important to avoid in lightning protection strips for a radome?
What is the purpose of the DVD process in wet layup laminates?
What is the purpose of the DVD process in wet layup laminates?
How does the double vacuum bag process differ from a standard wet layup process?
How does the double vacuum bag process differ from a standard wet layup process?
What is the purpose of evacuating the air between the rigid outer box and inner vacuum bag in the double vacuum debulk principle?
What is the purpose of evacuating the air between the rigid outer box and inner vacuum bag in the double vacuum debulk principle?
Why is it important to reduce resin viscosity during the debulking process?
Why is it important to reduce resin viscosity during the debulking process?
What is the role of the DVD tool in preparing wet layup patches?
What is the role of the DVD tool in preparing wet layup patches?
How does the double vacuum debulk principle help in preventing air bubbles in the laminate?
How does the double vacuum debulk principle help in preventing air bubbles in the laminate?
What type of surfaces are precured patches not suitable for?
What type of surfaces are precured patches not suitable for?
In the repair process using precured patches, what is done in Step 3?
In the repair process using precured patches, what is done in Step 3?
What is required in Step 4 of using a precured patch for repair?
What is required in Step 4 of using a precured patch for repair?
What is a key advantage of bonded repairs over bolted repairs?
What is a key advantage of bonded repairs over bolted repairs?
At what temperature do most film adhesives cure during the repair process with precured patches?
At what temperature do most film adhesives cure during the repair process with precured patches?
What type of surfaces are bonded repairs applicable to?
What type of surfaces are bonded repairs applicable to?
What is used to control the heat in the process described?
What is used to control the heat in the process described?
How is the debulking cycle completed?
How is the debulking cycle completed?
What is used to consolidate the plies during the compaction cycle?
What is used to consolidate the plies during the compaction cycle?
How are DVD tools fabricated according to the text?
How are DVD tools fabricated according to the text?
What is applied on the aircraft skin before placing the patch?
What is applied on the aircraft skin before placing the patch?
What is used to cure the adhesive used for patch installation?
What is used to cure the adhesive used for patch installation?
