Metal Bonding
What does metal bonding mean?
Metal bonding is a joining process where metallic materials are permanently connected using adhesives. This technique offers decisive advantages over mechanical connections like welding or riveting in terms of weight reduction and uniform stress distribution.
Advantages of metal bonding
- Uniform stress distribution over the entire bonding area
- No thermal influence on base materials
- Connection of different metals without corrosion risk
- Smooth surfaces without visible connection elements
- Vibration damping through elastic adhesive layer
- Weight reduction compared to mechanical connections
Metal types and bondability
- Aluminum: Very good bondability after surface cleaning
- Stainless steel: Excellent adhesion with suitable adhesives
- Galvanized steel: Good adhesion on passivated surface
- Copper: Very good bondability, consider corrosion protection
- Titanium: Excellent bondability for high-performance applications
Surface preparation
- Degreasing with suitable solvents
- Mechanical roughening for better anchoring
- Chemical etching for critical applications
- Primer application for difficult-to-bond alloys
Application areas
- Automotive industry: Body bonding and structural components
- Aerospace: Lightweight aluminum structures
- Electronic housings: Shielding and heat dissipation
- Mechanical engineering: Bearings and structural connections
DELO Metal Adhesives
- Structural adhesives for high-strength metal connections
- Special formulations for various metal combinations
- Primer systems for optimal adhesion
Planning a metal bonding application?
