Answer / suryamack

very hard materials (tool bits)which are difficult to
manufacture by conventional means can be prepared by powder
metallurgy technique.

Answer / ravishankar singh

The preparation and processing of powdered iron and
non-ferrous metals is called Powder Technology.Parts made by
this process cannot be produced in any other way.

Answer / anil kamat

The preparation and processing of powdered iron and
non-ferrous metals is called Powder Technology.Parts made by
this process cannot be produced in any other way.
Powdered metal is filled in the die and heated to just
below melting temperature and then the powder metal is
compacted under high pressure to give the required
shape.The process of heating the powder metal in the die is
called sintering.

Answer / rakesh swami

Powder technology is a method of manufacturing in which metal power is used to get the final shape of the object.The general procedure is as follows-
1. Manufacturing of powder (Atomization, Reduction, Grinding, Electrolytic deposition, milling of brittle materials, commutition etc)
2. Blending with lubricants (Graphite) and binders (methylcellulose, thermoplastics etc)
3. Compaction (compressed b/w dies)
4. Sintering (heated at almost 0.75*Tmelt)
5. Secondary machining and finishing if necessary
6. Secondary heat treatment if necessary
7. Oil impregnation, PVD, CVD etc as per requirement

Answer / deiveegan

it is generated of mechanical power.this power produced
steam generate.

sir, please send previous years RRB junior engineer (mechanical) exam papers

0 Answers  

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If I can absorb 9,000 lux of sunlight in the bottom of a pool what will the temp rise be per hour, per square foot of absorbing material, per gallon be? Temp of pool deck 115 degrees, water temp 75 degrees, 120,000 lux on the pool deck

0 Answers   ABB,

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If we want to move one ms channel on the lm guide. Its channel size is -W-300mm, H-400mm, L - 3ft. then how many load come on the lm guide. its lm guide is one tipe of bearing.

1 Answers  

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In Turbine how the balence piston works and what is the direction of leak of steam flow.

0 Answers  

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how hydraulic power stearing & clutch work plz explain?

1 Answers  

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position of check valve and valve ,how to arrangement of valve before check valve in pump station.

1 Answers   Ingersoll,

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what is thermodynmaics

11 Answers  

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Why start up vent is fully kept open when boiler is lighted up?

3 Answers   Isgec, Thermax,

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• Why not 4 phase & 5 phase

0 Answers   NTPC,

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Which types of questions ask in pool campus pune in technical and aptitude test

0 Answers   Dana Group,

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What is meant by running clearance?

0 Answers  

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hi please send the exam modle paper for mechanical engineering. Iam attending for vizag steel plant MT

0 Answers  

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