cutting fluids

Question 1

cutting fluids characteristics

Answer 1

COOLING & LUBRICATION (reduces coefficient of friction at chip tool interface ; increase tool life)

• liquid form
• applied to chip-formation zone; improve cutting conditions (removes heat dissipated due to friction)
• mineral oil/vegetable oil
• emulsion w/ h20 ; water-soluble ( cutting fluid + h20 ; 1:2) ; cooling action; have a much larger heat conducting capacity
• neat (undiluted) ; lubrication: low-speed cutting ( screw cutting, broaching, gear cutting

Question 2

other functions of cutting fluids

Answer 2

• improve surface finish quality & dimension
• flush away chips from cutting zone
• increase tool life
• prevent chip welding/corrosion of machine etc
• permit use of higher cutting speed & feedrate