For instance, the fins on extruded aluminum heatsinks may be cross machined to make a pin style, or screw holes is usually drilled right into a structural piece. It signifies the ratio in between the cross-sectional location of your initial billet plus the cross-sectional spot of the final extruded profile. https://aluminiummanufacturing45431.jaiblogs.com/59594033/the-2-minute-rule-for-aluminium-extrusion