Polycrystalline diamond inserts with brazed pcd cutting edgesĪdvantage of tipped pcd inserts over full faced pcd inserts is the lower cost, tipped insert is one use only economical type, it requires a carrier like tungsten carbide base as substrate for the insert, and substrate have a pocket that will accommodate and support the tip, the working tips are brazed to tungsten carbide base, 1~4 tips depends on different insert shapes, this braze joint of tipped pcd inserts represents the weak link not so good as full face pcd inserts, the maximum cutting depth is not more than 80% of the tip length, tipped pcd inserts could be used for fine to super fine precision machining, continous to interrupted machining, to obtain a good surface finish.
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