Supplier Fingerprinting Studies at Dana Alan Gray Background Dana is a global leader in the design, engineering and manufacture of value- added products and systems for automotive, commercial and off-highway vehicles. How we were involved Their Thermal Products Division, Long Manufacturing, approached us to characterise and test the raw materials used in their brazed aluminium heat exchangers. This ‘supplier fingerprinting’ of products allowed Dana to detect subtle process changes made during the manufacture of their raw materials. The huge amount of data generated in this project was captured in unique, user- friendly software developed by Innoval called a D-Map (‘Data Map’). The D-Map is based upon our K-Map (‘Knowledge Map’) and uses the same software. The K- Map process provides a stru

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