What fluid application method involves a machinist using a brush to manually apply fluid?

What fluid application method involves a machinist using a brush to manually apply fluid?

• A. Drip method
• B. Flood method
• C. Mist method
• D. Spray method

Answer: (A)

Using a brush to apply fluid is the drip method of coolant application. This approach delivers a small, controlled amount of fluid right at the cutting zone, and the machinist manually spreads it with a brush to keep the tool and workpiece lubricated without flooding the area. It offers precise control and minimizes coolant waste compared with flooding or spray systems, and it’s more targeted than mist, which uses atomized droplets. The emphasis here is on local lubrication and temperature control for small or delicate operations, where you don’t want to over-wet the setup.

Using a brush to apply fluid is the drip method of coolant application. This approach delivers a small, controlled amount of fluid right at the cutting zone, and the machinist manually spreads it with a brush to keep the tool and workpiece lubricated without flooding the area. It offers precise control and minimizes coolant waste compared with flooding or spray systems, and it’s more targeted than mist, which uses atomized droplets. The emphasis here is on local lubrication and temperature control for small or delicate operations, where you don’t want to over-wet the setup.