harshit sharma 2014881

By sahilsharma93685 | Updated: Jan. 30, 2025, 7:03 a.m.

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DayalBagh Educational Institute
Technical college 
Created by :-  Harshit Sharma
        Roll no :- 2104881                             
 Branch :- Voc.auto                     
Submitted by : -     
 Mr. rajeev satsangi
POWDER

METALLURGY
What is Powder Metallurgy?
Powder metallurgy (PM) is a process for forming metal parts by heating compacted metal powders to just below their melting points. In other words, PM is a metal shaping process that creates near-net parts from powdered metal
Value
production of 
powder metallurgy
1 :-ATOMIZATION
2:-GASEOUS REDUCTION
4:- CARBONYL PROCESS
5;- MECHANICAL ALLOYING
3:-electrolysis process
ATOMIZATION
Atomization involves the formation of powder from molten metal using a high jet spray.
 the use of electrolysis  process to refine metals or compounds at a high purity and low cost.
Electrolysis process
Carbonyl process
Carbonyl metallurgy is used to manufacture products of iron, nickel, steel, and other metals. Coatings are produced by vapor plating using metal carbonyl vapors. 
In this process the carbon monoxide CO and hydrogen gas react with ferrous oxide 
FE2O3 and fresh powder of metal .
Gaseous Reduction
Mechanical Alloying
Mechanical alloying (MA) is a solid-state and powder processing technique involving repeated cold welding, fracturing, and re-welding of blended powder particles in a high-energy ball mill to produce a homogeneous material
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Blending
1:- Obtain uniformity
3:-Addition of lubrication.
2:-To impart the spherical physical and mechanical properties and characteristics to the producs metallurgy product.
Blending
jinhe blending machine

compaction of metal powder
Powder compaction is the process of compacting metal powder in a die through the application of high pressures.
             SINTERING
Sintering is a thermal process of converting loose fine particles into a solid coherent mass by heat and/or pressure without fully melting the particles to the point of melting.
FINISHING OPERATION
2:-FORGING
3:-INFILTRATION
1:- RE-PRESSING
FINISHING OPERATION
2:- FORGING
3:-INFILTRATION
1:- RE-PRESSING
Advantage of PM
1:-No Machining Process is used 
2:-Metal and metal can be mixed in any prop.
3:-Close dimensional tolerances.
Disadvantage of PM
uses of PM
Raw material cost is very high
product that can be manufactured is generally limited to 2-20 kgs
Tungsten carbide, gauges, wire drawing dies, wire-guides, stamping and blanking tools, stones, hammers, rock drilling bits, etc.

harshit sharma 2014881

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