Astm E125 Reference Photographs.pdf !free!

This is where the PDF becomes invaluable, as shrinkage patterns vary wildly.

Looks like a jagged, continuous crack. It is often confused with a hot tear. D. Network Shrinkage (D-1 to D-6): Appears as a spider web or chicken-wire pattern on the surface. Astm E125 Reference Photographs.pdf

This is a critical category for aesthetic and functional reasons. Rough surfaces can act as nucleation sites for fatigue cracks. The photographs in this section provide a visual comparator for the general texture of the casting surface, ranging from smooth to severely rough. This is where the PDF becomes invaluable, as