Question

Q46. The principle of applying heat and pressure
is widely used in​

Answer 1

in evaporation heat and pressure is widely used

Answer 2

The principle of applying heat and pressure  is widely used in WELDING

Step-by-step explanation:

The principle of applying heat and pressure  is widely used in​ WELDING.

Welding may be done without applying pressure also

Welding is a coalescence of metals produced by heating to a suitable temperature and additionally

with or without the application of pressure,

with or without the use of a filler material.

Resistance Welding   - Where mainly Heat and pressure is used

1. Spot welding.

2. Seam welding.

3. Projection welding.

4. $But t$ welding.

5. Flash welding.

6. Percussion welding.

Pressure Welding - Where mainly Pressure is used

Can be cold or hot .

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