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...work loads from 0.03 to 3 m3). Air blasting is mainly carried out in cabinet machines which can be manual, semi-automatic or completely automated. Blast nozzles are made from hard iron, boron carbide, aluminium oxide and tungsten carbide. A boron carbide liner will last 700 times longer than an iron nozzle. The cycle times required for dry shot blasting depends on the...

...work material, the most common being boron carbide. Grit size depends on cutting speed and surface finish but is usually in the range 100 µm (roughing) to 5 µm (finishing). Abrasive concentration is in the range 20–60% (low for large tools), usually in water (although oil is sometimes used for finishing). The slurry is kept at 2–5˚C using a cooler. Common tool...

...worked before further deformation. This includes the Ti-6Al-4V alloy, which has excellent forgeability. Initial ingot breakdown is done just above the β transus temperature. Any further forging is done between the α and β transus temperatures. Design: A wide range of sizes, shapes and properties are available to the designer. Open die forging design is dependent on the...

...work to break down the remains of the food and also to digest many of the microbes that have continued along with the food. What happens to the remains of the food after it leaves a ruminant's stomach? Digestion continues in the small intestine, and absorption of the digested food into the blood begins through the wall of the small intestine. What is the caecum? The...

...work backwards. A diagram should include more than one such end factor only if contributory factors were related, and explaining both events is important. It is conventional not to put blobs around phrases, although if it improves clarity you can. It is not essential to indicate a system boundary on a multiple cause diagram. However, drawing a multiple cause diagram may...