Why cutting fluids are used in metal removal processes Which

Why cutting fluids are used in metal removal processes? Which expandable casting process will you prefer to adopt to reduce moisture related defects usually present in sand casting?

Solution

when ever portion of material is being removed from the metal, lost of heat is generated which tries to change the properties and affects the surface roughness of the product and also increases the temperature of the work piece. to avoid them the cutting fluid is used to decrease those effects.