High-performance drill for cast iron applications

KENNAMETAL HAS introduced an expansion of its solid carbide drilling portfolio, the HPR drill for high performance ance drilling of cast iron workpieces. Designed for high-speed and high-feed -feed drilling up to

8 x D in any ISO-K material, the HPR drill provides es ‘excellent hole straightness even at highest cutting parameters’. s’.

‘WINNING’ FEATURES

The drill’s patented point thinning, special gashing, ng, and a 143°-point angle provide excellent self-centring capabilities and reduce thrust, keeping the drill running straight ght even at the highest feed rates, states the manufacturer. In n addition, four margin lands deliver maximum stability when n drilling cross holes and inclined exits.

A patented corner radius improves tool life significantly and provides excellent hole quality, meeting a hole tolerance range of IT9 to IT10 while ile effectively eliminating the workpiece chipping when exiting the hole. “The drill’s low-thrust point design gives users the option to apply the drill under less-than-ideal clamping conditions, or on thin walled applications, or simply when spindle power is the limiting factor,“says Frank Martin, Product Manager, Kennametal. “Extensive testing has shown that this new drill is a solution provider for those types of challenges, as well as for high-volume cast iron p production.”

‘OUTSTANDING’ WEAR RESISTANCE

The Th drill’s proprietary AlTiN/AlTiSiN multilayer coating withstands withsta the extreme abrasion and high thermal loads encountered encount when drilling grey cast iron, ductile iron, CGI, ADI, and GGG. The new coating is also resistant against the inclusions and pores com commonly encountered in these challenging materials. Ultra-high polished flutes flut and wide flute cross section promote efficient chip evacuation an and further reduce heat and resulting thermal shock. The new HPR drill come comes with standard coolant through and with a DIN 6535 and 69090- 69090-03 03 MQL (minimum quantity lubrication) interface. With these features the drill excels in either wet or dry machining conditions. “Whether drilling large quantities quantitie of holes or overcoming typical challenges in any type of cast iron workpiece, workpiece the HPR drill is clearly the solution,” says Martin.

DETAILS, PH: 0800 428883 - 09 2745890 WWW.TOTALCNC.CO.NZ