Weight reduction with maintained part performance is a continuing trend throughout the automotive industry. Acoustical insulation parts (carpet underlay and dash insulators) are no exception. Several years ago, ICI Polyurethanes led the industry in establishing a molded density standard of 48 kg/m3. Although this is the current production standard, the technology drive is toward even lower weights. Recent technological demonstrations show that molded densities of 35-38 kg/m3 are achievable. In addition to removing weight, acoustical performance can be maintained with no deficiencies in physical characteristics.
The Next Step in Acoustical Part Weight Reduction
Sae Technical Papers
Noise & Vibration Conference & Exposition ; 1999
1999-05-17
Conference paper
English
Insulation , Molding , Production , Parts , Acoustics
The next step on acoustical part weight reduction
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