We Notice While Milling an Unfamiliar Material That the Tool

question 15

Multiple Choice

We notice while milling an unfamiliar material that the tool tends to perform the best when turning at 1200 RPM with a ø 0.750" end mill. We will have this material to machine often, so we decide that it would be a good idea to document the cutting velocity for future reference. What is the cutting velocity?

• A) 224 ft/min
• B) 236 ft/min
• C) 245 ft/min
• D) 267 ft/min

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Definitions:

Object Permanence

The understanding that objects continue to exist even when they cannot be observed (seen, heard, touched, smelled or sensed in any way).

Accommodation

In psychology, it refers to the process by which individuals adjust their schemas or understanding in response to new information; in ophthalmology, it's the eye's ability to change its focus to see objects at different distances.

Binocular Depth

The ability to perceive the world in three dimensions and judge the distance of objects, thanks to the different visual images each eye perceives.

Linear Perspective

A depth cue that involves parallel lines converging as they recede into the distance, helping the brain perceive depth in a two-dimensional image.