Micro-perforating for automotive heat shielding creates very small holes in aluminum foils. These holes or micro-perforations improve acoustical performance by absorbing noise across a specific frequency range. Heat shield micro-perforating also complements manufacturing processes such as embossing and lamination. For a complete heat management and NVH solution, micro-perforating adds value to automotive die cutting.
Aluminum foils that are micro-perforated also support vehicle lightweighting and can be formed into complex, three-dimensional shapes. Typically, these die cut heat shields are used in engine shields and underbody shield applications. Automotive applications include tunnel shields, inner and outer dash shields, and hood insulators for a cooler, quieter ride.