Basic Components & Elements of Surface Topography
Basic Components & Elements of Surface Topography
Basic Components & Elements of Surface Topography
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R 3Z , R 3zmax Parameters<br />
Per Daimler Benz Corporate Standard<br />
N31007:1983<br />
• R 3z<br />
– mean third highest peak-to-valley height over 5 sampling length.<br />
• R 3zmax<br />
– maximum third highest peak-to-valley height <strong>of</strong> the 5 third highest<br />
peak-to-valley height.<br />
R 3z<br />
disregards the 2 highest peaks and deepest valleys that have little effect on the<br />
surface performance, with the intent to reduce the instability <strong>of</strong> peak parameters<br />
(such as R z<br />
), by ignoring pr<strong>of</strong>ile extremes.<br />
Applications<br />
Sealing <strong>Surface</strong>s<br />
Porous <strong>Surface</strong>s<br />
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