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In thermal advanced micromachining process, intense heat is produced.

In thermal advanced micromachining process, intense heat is produced. Correct Answer True

In this process, localized intense heat is produced which increases temperature of the workpiece in a narrow zone (i.e.Beamdiameter), equal to its melting or vaporization temperature. Which leads to removal of material at micro/nano level in the form of debris (irregular shaped particles or spherical globules).

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Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body)
Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow and k = Thermal conductivity of the body)
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3. Restriction of sieve areas on the end wall is a primitive condition whereas their presence on end wall as well as radial wall is an advanced condition
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Thermal micromachining processes can be used to produce reduced hole diameter, lower hole pitch.
Thermal deformation of the workpiece is the major problem in micromachining.
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