Q. The irregularities in the surface texture due to the inherent action of the production process is called
Solution:
Repetitive or random deviations from the normal surface which forms the pattern of the surface. Surface texture includes surface roughness, waviness, lay and flaws.
surface roughness: It consists of surface irregularities due to various machining process.It can further be classified into
i. Roughness height
ii. Roughness width
iii. Roughness width cut-off
Waviness: It is the distance between a peak to valley of a surface profile measured in millimetre.
Lay : Direction of the predominant surface pattern produced.
Flaws : Irregularities which occurs at one place or widely varying intervals at surface
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