hood assembly

What is a BIW Hood? The Hood (Bonnet) is a closure panel in BIW that covers the engine compartment. Functions: Protects the engine from dust, water, and heat Provides access for engine service Improves vehicle appearance (styling) Ensures pedestrian safety Provides structural strength Main Parts of a BIW Hood Outer Panel Visible outer surface Styling surface Thin sheet metal Inner Panel Provides strength and stiffness Designed with emboss patterns Distributes loads during impact and closing Hinge Reinforcement Strength at hinge mounting area Latch & Striker Reinforcement Strength at locking area Mastic Points Bonding between outer and inner panel Reduces vibration and noise (NVH)