M/s R V Chumble

Since 1983

industries

Automotive Lightweighting with Vacuum Formed Composites

M/S RV Chumble Automotive Division
August 9, 2024
6 min read

The EV Range Race

With the rapid rise of Electric Vehicles (EVs), weight reduction—known in the industry as lightweighting—has become the top priority for automotive engineers. Every kilogram saved translates directly to increased battery range.

Replacing Fiberglass and Metal

Traditionally, exterior aerodynamic fairings, bumpers, and large interior panels were made from stamped metal or heavy fiberglass composites. Today, these are being rapidly replaced by heavy-gauge vacuum formed plastics like ABS and TPO (Thermoplastic Olefin).

  • Weight Savings: TPO panels can be up to 40% lighter than their fiberglass equivalents.
  • Impact Recovery: Unlike fiberglass, which shatters upon impact, or metal, which permanently dents, advanced TPO plastics have "memory." Minor impacts will cause the plastic to flex and return to its original shape.
  • Class-A Surfacing: Modern co-extruded plastics feature a high-gloss acrylic cap layer, providing a flawless, paint-like "Class-A" finish right out of the mold, entirely eliminating the need for an expensive post-process paint shop.

The Future of Auto Manufacturing

By leveraging large-format vacuum forming, automotive OEMs are radically reducing vehicle weight, cutting out paint shop bottlenecks, and lowering their overall manufacturing footprint.

Found this insightful?

Share this engineering knowledge with your network.

Partner with India's Leading Vacuum Forming Experts.

Request a quote for your next project

Get in Touch