Adhesives and Sealants as an Enabling Technology for Lightweight, Safe, and High Performing Steel Vehicles

2018-10-31 13:14:00

LUQIMENG

Original

2112

? Types & Applications of Adhesives and Sealants in Automobile Body
? Automotive Industry Trends & Implications to Adhesives
— Global Designs
— Fuel Economy (& weight reduction)
— Auto / Electronic Convergence
— Sustainability
? Multi Material bonding applications
? Summary & Long- -

Adhesives help manufacturers:
? Build structures that are stronger, stiffer, lighter
and better performing
? Make products quieter and more comfortable
? Solve difficult joining problems

Suppliers with global capabilities

Ability to provide material properties and

predict static and dynamic performance

Efficient powertrain and lightweight materials

Low lifetime environmental footprint

Changing user needs and priorities

Challenge: stiffness & dynamic performance
Stiffness ~ Et (shapes)
~ Et 3 (flat panels)
Lower stiffness = degraded handling & performance

Solution: WELD BONDING
Increases stiffness & crash energy absorption
Decreases required spot welds or rivets

Al casting replaces multi-piece stamped assembly
Adhesive reduces stress on fastener and improves fatigue life
Adhesive prevents galvanic corrosion in mixed material assembly

? Reduce stresses in joints, which improves durability
? Enable gauge reduction of steel, which reduces weight
? Higher loads can be sustained, which improves crash and safety performance