Abstract
To be competitive in the global automobile industry, it is no longer enough to understand manufacturing cost alone. The growing emphasis on environmental impact has forced life-cycle cost issues to the forefront. This article defines the life cycle of automotive structures and exterior panels—the body-in-white—to include manufacturing, operation, and post-use. These body-in-white life-cycle costs are assessed for a midsize, four-door sedan using an implementation of a technique called technical cost modeling. This article describes the life-cycle cost-assessment methodology and applies it for alternative body-in-white structure and exterior panel materials. These include steel stampings; aluminum stampings, extrusions, and castings; and resin/glass composite and thermoplastic moldings. The life-cycle costs are presented and analyzed for varying manufacturing scenarios. Although life-cycle costs currently do not drive the decision-making process in the automotive industries, legislative and consumer pressures could one day give them added weight.
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Dieffenbach, J.R., Mascarin, A.E. Body-in-white material systems: A life-cycle cost comparison. JOM 45, 16–19 (1993). https://doi.org/10.1007/BF03223304
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DOI: https://doi.org/10.1007/BF03223304