Millwright Level 1 Practice Exam 2025 – All-in-One Guide to Master Your Certification!

Question: 1 / 445

What happens when a higher feed rate is utilized during machining?

Increases tool life

Slower cutting speed

Reduces cutting speed

Decreases tool life

Utilizing a higher feed rate during machining can lead to a decrease in tool life. This occurs because a higher feed rate increases the amount of material removed in a given time, which results in greater wear on the cutting edge of the tool. The increased material engagement can generate more friction and heat, accelerating the degradation of the tool. Moreover, the rapid movement can also cause impacts and vibrations that further contribute to tool wear.

In addition to affecting tool life, a higher feed rate generally does not result in slower or reduced cutting speeds; rather it may keep or even increase the cutting speed depending on the spindle speed and the operations being performed. Tool life is influenced primarily by the combination of factors like feed rate, cutting speed, and tool material, but in this context, the result of a higher feed rate specifically leads to reduced tool life.

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