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Which milling procedure is shown in FIGURE 1.1? A - NSC Mechanical Technology Welding and Metalwork - Question 1 - 2016 - Paper 1
Question 1
Which milling procedure is shown in FIGURE 1.1? A. Up-cut milling B. Gear cutting C. Down-cut milling D. Denting of a milling cutter
Worked Solution & Example Answer:Which milling procedure is shown in FIGURE 1.1? A - NSC Mechanical Technology Welding and Metalwork - Question 1 - 2016 - Paper 1
Step 1
Which milling procedure is shown in FIGURE 1.1?
Answer
To identify the milling procedure shown in FIGURE 1.1, we need to analyze the orientation and movement of the cutter in relation to the workpiece.
In up-cut milling, the cutter rotates against the feed direction of the workpiece, which results in material being removed from the top down. In down-cut milling (or climb milling), the cutter rotates in the same direction as the feed, which typically provides a better surface finish but can be harder on the machine components.
Upon examining the figure, it is evident that the cutter is approaching the workpiece from a direction that aligns with down-cut milling.
Therefore, the correct answer is:
C. Down-cut milling