(1) multi-blade type large rounded end mill feed
Mold industry generally with small depths of cut, cut into a large way to to achieve efficient processing, but the market demand requires further improve processing efficiency. In response to this need, Hitachi has developed a multi-tool cutting edge of the tool, as well as at high feed conditions can also withstand high cutting speed coating.
     Multi-blade type large feed rounded design tool is a limited tool diameter, based on past Flutes design approach will reduce the size of the cutting edge, but does not reduce the edge strength. The high-feed milling cutter blade fillet main cutting edge radius was set to r8. Compared with the same radius as the circular blade r8, it has the same edge strength, but minimizing the blade area, enabling multi-blade technology. Before the blade outer diameter φ32 are two edges, while a large number of multi-blade type blade end mill feed rounded up five more than the previous product increased by 2.5 times.