Paul Horn Indexable cutting inserts offer gentle cut, top plane surfaces
High accuracy is another plus, according to the supplier.
The patent-pending M409 tangential milling system from Paul Horn provides indexable cutting inserts in rhombic form, which are loaded into end mills with cutting circle diameters of 32 and 40mm and arbor-mounting mills with cutting circle diameters of 40, 50, 63 and 80mm.
The inserts achieve high accuracy combined with optimum surface quality, the supplier reported. A positive clamping angle and a positive axial angle offer a gentle cut, while the secondary cutting edge with integrated drag chamfer produces best-quality plane surfaces; an additional free-surface chamfer reportedly creates a stable wedge angle and extremely quiet milling.
With a corner radius of 0.8mm, the mills have cut depths of up to 9.3mm and suit 90-degree shoulders. They are made of hard metal and coated with TiAlN for long service in roughing and finishing. Interior cooling with outlets in the direction of the working point makes a further contribution.