Manufacturing Technology
1. Find out at least 3 types method to produce for
powder technology
2. Hot Pressing...
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Mechanical Engineering
Manufacturing Technology
1. Find out at least 3 types method to produce forpowder technology
2. Hot Pressing Forming(HPF) (i) What is that (ii) How its work
3. What mean by surface energy in sintering
4. What do you mean by inpregnated andinfiltration
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3.8 Ratings (356 Votes)
Solution Powder Metallurgy is a manufacturing process in which the shapes required are generally manufactured from metallic powders This process include the following steps Powder production Compaction Sintering and Secondary operations Secondary operations are not mandatory they depend upon the final geometric forms required Among the 3 basic operations preparation of powder is the toughest process There are several methods of powder production and depending on the shape of the powder particle required the process is adopted Some of the powder production processes are Mechanical pulverization used for brittle materials like antimony Electrolytic process Used for producing Cu Iron and silver powders Chemical reduction Generally used for Fe Cu Molybdenum Tungsten Atomization Generally used for both ferrous and nonferrous alloys such as stainless steel superalloys In mechanical pulverization brittle materials and alloys can be crushed to approximately 0001mm Generally milling operation is used which involves impact attrition shear and compressive forces for crushing the
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