Compacting or briquetting, Other Engineering

Assignment Help:

        The operation of heating a green compact to an elevated temperature is known as sintering. It is a process by which solid bodies are bonded by atomic forces. It is carried out below the melting temperature of the major constituent of the blended power. Most metals are sintered at 70% to 80% of the melting temperature.

       Following changes occur during the process of sintering :

      (i) The density of the part is increased.

      (ii) Grain boundaries are formed.

      (iii) Plasticity is increased.

      (iv) Better mechanical interlocking is produced.

      (v) Volatile materials that are present are driven off, thus producing porous product.

      The sintering atmosphere is controlled to prevent oxidation of the work. The most frequently used atmosphere are dissolved ammonia and hydrogen.


Related Discussions:- Compacting or briquetting

Composite materials - rotational stability equations, Rotational stability ...

Rotational stability equations  The torque T applied to any rigid vehicle with moving c.g. is in general determined by T = ∂HVE/∂t|E + uvE ×MugE where E is the inertial a

instrumentatiion, can i get block dig of digital frequency meter

can i get block dig of digital frequency meter.

Cell arrays matlab, Expertsmind.com offers  Cell Arrays matlab assignment ...

Expertsmind.com offers  Cell Arrays matlab assignment help In matlab, Cell arrays are just like frequent arrays in that they are "indexed" details of information, with an out

Manufacturing process, why is it necessary for all engieers to about manufa...

why is it necessary for all engieers to about manufacturing process

What is ebidta?, What Is EBIDTA?  EBITDA appears for income before atten...

What Is EBIDTA?  EBITDA appears for income before attention, taxation, devaluation, and amount. EBITDA came into large use among personal investment companies, seeking to determ

Types of patterns in manufacturing, Types of patterns : These  depends upo...

Types of patterns : These  depends upon many factors like the bulk of casting, type of moulding processes, number of castings required and the anticipated difficulty of moulding,

What is crossover rate?, What is crossover rate? They are produced by tw...

What is crossover rate? They are produced by two different but identical tasks. The cross-over amount is the points at which the two tasks obtain the same net provide value. Wit

Physical significance of wave function , Wave function is a complex quantit...

Wave function is a complex quantity, which itself has no physical significance. But square of its magnitude gives the probability of finding a particle in a given volume of space a

Fluid mechanics, 2 horizontal flate plate 0.15mm apart and space between th...

2 horizontal flate plate 0.15mm apart and space between them is filled with an oil having viscosity 1poise the upper plate of area 1.5m2 is required to move with a speed of 0.5m/se

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd