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mano la ak tau
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Surface defects are the shortcomings, imperfections, or lack of substance on the expected surface of an item.
advantages of protrude on sand casting
You can measure defects on a plate with a 3-D surface map. To mention defects on a plate in a report you would want to include the shape, surface roughness, and surface finish of the plate.
May or may not be depending upon type of defects .
Type-casting.
gfn shows the range of the sand size. as we know sand are differ in shapes and sizes. if the gfn is between 40 and 100 it can be classified as coarse and 100-220 is fine. typically for ferrous casting the gfn is 70 but it can be range between 50 to 100. it is because if the gfn is below 50 it will result poor surface quality. if the gfn above 100, its too fine and gives low permeability and might be defects occur due to the large surface area
Type cast
* Cracks * Scratches * Peeling (if there is a coating on the lens)
ans is none because top gate are used in very large casting due to erosion occur in this casting
Type conversion or type casting is the method of changing the entity of datatype to another.