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Powder Metallurgy is a forming and fabrication technique consisting of three major processing stages. First, the primary material is physically powdered, divided into many small individual particles. Next, the powder is injected into a mold or passed through a die to produce a weakly cohesive structure (via cold welding) very near the dimensions of the object ultimately to be manufactured. Pressures of 10-50 tons per square inch are commonly used. Also, to attain the same compression ratio across more complex pieces, it is often necessary to use lower punches as well as an upper punch. Finally, the end part is formed by applying pressure, high temperature, long setting times (during which self-welding occurs), or any combination thereof.
Two main techniques used to form and consolidate the powder are sintering and metal injection molding. Recent developments have made it possible to use rapid manufacturing techniques which use the metal powder for the products. Because with this technique the powder is melted and not sintered better mechanical strength can be accomplished.
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What is the study of metals?
Metallurgy
What are the characteristics of metallurgy?
history of metal metallurgy
Branches of metallurgy?
Metallurgy is broadly divided into following branches : 1. Mechanical Metallurgy 2. Physical Metallurgy 3. Extractive Metallurgy These are the basic divisions and these branches are further divided into various sub categories.
How can trigonometry be useful in metallurgy?
how can trigonometry use in metallurgy
Who were experts in metallurgy?
The Bantu were experts in iron Metallurgy.
Who were experts in iron metallurgy?
The Bantu were experts in iron metallurgy.
How is technology used in metallurgy?
Metallurgy is technology. The technology of metals.
Why is hydrogen used in metallurgy?
As hydrogen is a reducing agent it is used in metallurgy
What is conclusion 0f powder metallurgy process?
conclusion metallurgy process
What has the author A D Merriman written?
A. D. Merriman has written: 'A dictionary of metallurgy' -- subject(s): Dictionaries, Metallurgy 'Achievements of modern science' 'A concise encyclopedia of metallurgy' -- subject(s): Dictionaries, Metallurgy
What is iron metallurgy?
The science of metal iron and its alloys is called iron metallurgy.
When was Kunming Metallurgy College created?
Kunming Metallurgy College was created in 1952.
