Answer
See work below.
Work Step by Step
Powder metallurgy offers several advantages over traditional casting or milling of metal.
1. In powder metallurgy, micron-sized metal particles are pressed
together under high pressures to form the desired component. The component is then heated ( sintered ). The sintering process occurs below the melting point of the powder but at a temperature high enough to cause the metal particles to fuse together, strengthening the metal and increasing its density.
2. Waste is almost eliminated because the part can be pressed directly into the desired shape. Intricate teeth on gears and multiple holes can be designed into the press and therefore do not have to be machined after production.
3. Making cast metal objects from metals with high melting points, such as molybdenum and tungsten, can be difficult because of the high temperatures necessary to melt the metal. Using the powder avoids the need for high temperatures.
