Structural Body Components: The Vehicle's Skeletal System
Structural stamped parts act like the human skeleton, playing a vital role in providing structural support and safety protection. Common examples include:
Longitudinal and transverse beams: Form the main vehicle frame and absorb energy during collisions.
A/B/C-pillar reinforcements: Enhance the roof's compressive strength.
Sill beams: Protect the passenger cabin from side-impact forces.
Floor assembly: Integrates seat mounting points and the battery compartment.
These components typically utilize high-strength steel sheets (1.2–2.5 mm thick) and require multiple stamping stages for forming.
Exterior Body Panels: The Vehicle's Skin and Appearance
These panels define the vehicle's first impression and include:
"Four doors and two lids" (side doors, hood, and trunk lid).
Fenders: Curved panels positioned above the wheel arches.
Roof panel: Serves as the mounting base for panoramic sunroofs.
Side body panels: Large, integrated pieces extending from the A-pillar to the rear bumper.
These parts demand high surface smoothness; galvanized steel is commonly used to prevent corrosion, and precise trimming is required after forming.
Functional Integrated Components: The Vehicle's "Nerve Endings"
Specialized stamped parts that combine practical utility with specific manufacturing requirements:
Fuel tank shell: Multi-layer steel composite designed to prevent leakage.
Exhaust heat shield: High-temperature resistant, corrugated structure.
Seat rails: Precision-punched to ensure smooth adjustment.
Battery tray: Aluminum alloy die-casting featuring integrated cooling channels.