Red Seal Machinist Practice Exam

What type of milling operation is characterized by the use of a large cutter with multiple flutes?

1. Profile milling

2. Face milling

3. End milling

4. Drilling

The correct answer is: Face milling

Face milling is characterized by the use of a large cutter with multiple flutes, which allows for a broader surface area to be machined. The design of the face mill enables it to cut both the flat and the contour of the workpiece, making it efficient for large surfaces. This type of milling operation typically utilizes a cutter that rotates on a spindle axis that is perpendicular to the workpiece, ensuring a smooth finish on flat surfaces. The use of multiple flutes in the cutter enhances the milling process by facilitating the removal of material while also allowing for better chip clearance. This results in improved surface finish and greater efficiency in machining operations. Additionally, the capability to operate at higher speeds and feed rates makes face milling a preferred method for machining surfaces on larger workpieces. Understanding this milling operation is essential for anyone involved in machining, as it highlights the advantages of using specific tools for particular tasks within the manufacturing process.