Milling Operations Quiz

Bryan is working on a project that involves creating a 3D model of a plastic injection mould. What type of operation should he use for surface contouring?

• End Mill

• Pocket

• Surface Contour

• Slot

Sofea is working on a project in her engineering class where she needs to calculate the cutting speed (Vc) for a CNC milling machine. What is the formula for cutting speed (Vc)?

• Vc = π * r * n

• Vc = π * d * n

• Vc = 2π * d * n

Asyiqin is working in a workshop and needs to calculate the cutting speed of a milling tool. The tool has a diameter of 40 mm and operates at a spindle speed of 600 RPM. What is the cutting speed, Vc of the tool?

• 75.4 m/min

• 84.2 m/min

• 94.2 m/min

• 113.1 m/min

Melvin is using an end mill with a diameter of 16 mm to machine a part in his workshop. The end mill operates at a cutting speed of 150 m/min. What is the spindle speed in rotations per minute (RPM)?

• 2970 RPM

• 2990 RPM

• 2980 RPM

• 2960 RPM

Zulhazim is working on a project where she needs to calculate the feed speed of a machine tool. What is the unit of measurement for feed speed in the given formula?

• mm/sec

• cm/min

• mm/min

• m/min

Atiqah is working in a metal workshop and needs to handle a heated metal workpiece. Which benefit of cutting fluids helps in easier handling of the workpiece?

• Increase in workpiece hardness

• Reduce temperature of workpiece

• Increase in workpiece size

• Decrease in workpiece weight

Aiman is working on a project in his engineering class where he needs to machine a metal part. What is the main purpose of lubricants in machining?

• To increase tool speed

• To reduce tool-chip and tool-work friction

• To enhance cutting precision

• To increase heat generation

Thivya is working on a project in her mechanical engineering class. She needs to use a face milling cutter for plain milling. The project requires a cutting speed of 200 m/min, and the number of rotations should not exceed 300 RPM. What is the maximum diameter, d of the face milling cutter Thivya should use to meet these criteria?

• 210 mm

• 212 mm

• 214 mm

• 216 mm

Syafuan is working on a metalworking project in his workshop. He needs to ensure that the tools he uses do not overheat during the cutting process. What is the primary function of coolant-type cutting fluids in this scenario?

• To increase friction

• To reduce heat and temperature

• To enhance noise levels

• To increase tool wear

Paven is working on a project in his engineering class where he needs to understand the effect of increasing the cutting speed on tool life. What will he observe?

• Increases tool life

• Decreases tool life

• No effect on tool life

• Tool life becomes unpredictable