Cutting a sample from a bigger piece of material is one example of a metal-removal procedure that produces heat due to friction. About one-third of the heat generated during cutting is produced by external friction, or metal-to-metal contact, and two-thirds by internal friction or the resistance of metal atoms to movement in the shear zone.

When coolant is used, the atoms of chlorine, sulphur, and phosphorous in the coolant enter the microscopic fissures in metallic surfaces. This lowers the power required to manufacture a chip by preventing metal atoms from re-bonding during the cut. The area of the shear plane is also reduced by lubricating the chip/tool and tool-flank/cut-surface interfaces. The power needed to create a chip reduces along with that area, as does the amount of heat produced. In this approach, the lubricant lessens internal and exterior friction to a lesser amount.

The Coolant Pump Power of NextGen’s TensileTurn CNC – Round Tensile Sample Preparation Machine is 1/8 HP.

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