“Surface cleaning is necessary for machined parts.” Justify the statement.

“Surface cleaning is necessary for machined parts.” Justify the statement. 
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1 Answer

Answer :

Necessity of Surface cleaning: Components, particularly those made of steel, get contaminated during and after production. Scale is formed on components after hot working. Castings get contaminated with sand. In workshop components get contaminated with cutting oils, grease, wax, tars, dirt and scale.

Thus surface cleaning is necessary

(a) to increase the life of the component,

(b) to carry out further operations, and

(c) to put it to practical use.
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