Powder Metallurgy

Which one is not the powder metallurgy product ?

• iron & steel

• aluminium

• tin

• zinc

What is the disadvantage of powder metallurgy ?

• no skill labor required

• reduction in production time

• close dimensional tolerence

• die design limit the size of product

Which one is not the particle shape in powder metallurgy ?

• cylindrical

• rectangular

• spherical

• cubic

This is the pre-alloyed powder used in powder metallurgy, except ?

• stainless steel

• cooper alloy

• high speed steel

• aluminum

Powder metallurgy process consist of the following operations, in sequence:

• powder production, blending, compaction, sintering

• powder production, sintering, compaction, blending

• powder production, compaction, blending, sintering

which of the following is the advantages of powder metallurgy except?

• composition of product can be controlled

• close dimensional tolerances can be mantained

• there are no lost of material

• the product has high porosity

which of below is the limitations and disadvantage of powder metallurgy?

• pure metal powders are very expensive to produce

• wide range of metaal powder like steels,bronze etc

• poor plastic properties except good strength and elongation

• the geometries are very limit

These are the important characteristic of metal powder's part EXCEPT

• Strength

• Power

• Machinability

• Durability

metal powder were produce according to specific specifications such as:

• shape

• flow-ability

• purity

• particle size

• particle size distribution