About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Advances in Surface Engineering
|
Presentation Title |
High Adhesive Joint Durability of Aluminum Alloys with Chemical Free Treatments |
Author(s) |
John Ho, Alp Manavbasi |
On-Site Speaker (Planned) |
John Ho |
Abstract Scope |
Surface pretreatments are often used to activate and functionalize the metal surfaces to provide enhanced adhesion and bond durability for adhesive joints or subsequent coatings. For aluminum sheet materials, such as 6xxx-series wrought alloys designed for automotive applications, wet chemical cleaning and pretreatment are widely used methods for improving coatings and adhesive joints with high corrosion resistance and durability. Current laboratory experimentation in this work explores an alternative surface treatment method without any wet cleaners and/or pretreatment chemicals with improvements in cleanliness and corrosion resistance. Simultaneous surface cleaning and activation for durable adhesive joints by using highly energetic laser ablation and texturing on the surface of the aluminum are demonstrated without any conventional wet surface treatment chemistries. In addition to the characterization and quantification of cleaned, activated and textured surfaces, improvement in adhesive joint durability in a corrosive environment will be presented. |