The diameter of carbide helical end mill cutter is larger than normal mill cutter. The helical grooves in the cutter opening circumference, a groove cutter mounted on two or more pieces of carbide inserts and to the adjacent teeth of the blade staggered joints, seams with the use of a knife blade between the slot as a sub-flute. This is a multi-blade cutter and is staggered, just like ripe corn, thus commonly known as "corn cutter."
Because it is composed of a plurality of spiral blade carbide inserts, so high "corn milling" strength, cutting force and is is used for roughing. It can have a large cutting depth, feed a large amount, high milling efficiency for cnc milling machine. As shown in Figure 1.
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