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2) Valve Selection Criteria - (1) Valve Coefficients and Three Principal Types of Flow Type
Engineering - Valves ·1. Valve Coefficient When you design the pneumatic or hydraulic system, according to the Bernoulli’s equation in compressible flow situation
where $g$ is the gravity acceleration constant, $h$ is the height of the fluid line from the reference point, $\rho$ is the density property of fluid being analyzed, and $\int dP$...
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1) Machining operations - cutting tool materials (1)
Engineering - Machinery ·1. Cutting tool materials The recommended cutting feeds and speeds in the accompanying tables are given for high-speed steel, coated and uncoated carbides, ceramics, cermets, and polycrystalline diamonds. More data are available for HSS and carbides because these materials are the most commonly used. Other materials that are used to make cutting tools are cemented oxides or ceramics, cermets, cast...