Automotive Part Cleanliness A case study The Problem: Automotive engineers have created remarkable advances in the functionality and reliability of transmissions, fuel injection systems, power trains and braking systems. Along with the benefits introduced by these components, new challenges have presented themselves. One such case was with a Fortune 50 automobile manufacturer in which key components became increasingly susceptible to residual micron-size particulate contamination. Field failures increased as did a growing concern that their current practices of monitoring cleanliness by gravimetric testing and optical inspection were insufficient. The Investigation: Production Engineers at the plant began by developing a study focused on understanding the levels and sources of

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