1. In Figure 1, the feed is 0.006 in. per tooth. The cutter is rotating at an rpm that will produce the desired surface cutting speed of 125 fpm. The cutter diameter is 3 in. The depth of cut is 0.15 in and width of the cut is 2 in. The block is 5 in. wide and 12in long. Determine a. The feed, in inches per minute. b. Approach distance for this type of milling c. Cutting time to make one pass across the surface
1. In Figure 1, the feed is 0.006 in. per tooth. The cutter is rotating at an rpm that will produce the desired surface cutting speed of 125 fpm. The cutter diameter is 3 in. The depth of cut is 0.15 in and width of the cut is 2 in. The block is 5 in. wide and 12in long. Determine a. The feed, in inches per minute. b. Approach distance for this type of milling c. Cutting time to make one pass across the surface
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Transcribed Image Text:1. In Figure 1, the feed is 0.006 in. per tooth. The cutter is rotating at
an rpm that will produce the desired surface cutting speed of 125
fpm. The cutter diameter is 3 in. The depth of cut is 0.15 in and
width of the cut is 2 in. The block is 5 in. wide and 12in long.
Determine
a. The feed, in inches per minute.
b. Approach distance for this type of milling
c. Cutting time to make one pass across the surface
d. if an additional approach distance of 0.5 in is provided
at the beginning of pass and an over travel distance is
provided at the end of pass equal to the cutter radius
plus 0.5 in, what is the duration of the feed motion?
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