Ro­tary burrs en­hance Dormer Pramet pro­gramme

DEMM Engineering & Manufacturing - - PRODUCT WATCH - www.demm.co.nz/ reader-en­quiry #150403.

Dormer Pramet has added a range of car­bide ro­tary burrs to en­hance its sup­port tools pro­gramme for gen­eral ma­chin­ing pro­cesses.

It is the first time that burrs will be avail­able un­der the Dormer prod­uct brand, with a com­pre­hen­sive as­sort­ment of de­signs and shapes to choose from, in­clud­ing ball nosed cylin­der, pointed tree, oval, f lame, 60° and 90° coun­ter­sinks, cones and in­verted cones va­ri­eties.

The in­tro­duc­tion of the burrs is part of a wider prod­uct launch by Dormer Pramet on 01 April – the first com­bined un­veil­ing since Dormer and Pramet merged last year.

Dormer’s wide se­lec­tion of burrs pro­vides nu­mer­ous op­tions to ma­chine a range of ma­te­ri­als, in­clud­ing hard­ened steel, non-fer­rous ma­te­ri­als and plas­tics.

Its com­bi­na­tion of car­bide head and steel shank (above 6mm) pro­vides an ideal mix of rigid­ity and strength. This fea­ture re­duces vi­bra­tions, re­sult­ing in a con­sis­tent and se­cure per­for­mance, as well as an im­proved tool life.

A dou­ble cut de­sign on Dormer’s burrs im­proves ease of con­trol, in­creases metal re­moval rate and breaks swarf into man­age­able pieces.

Also, the ball end ge­om­e­try in­cor­po­rates skip f lute grind­ing which im­proves cut­ting ac­tion closer to the cen­tre, re­duc­ing the chance of swarf con­ges­tion and in­creases strength.

Al­ter­na­tively, the alu­minium cut op­tion makes it the first choice for non-fer­rous ma­te­ri­als and plas­tics. The high helix and rake an­gle of­fers large f lute vol­ume for rapid ma­te­rial re­moval rates.

Dormer’s burrs are avail­able with TiAlN coat­ing to in­crease tool life in dif­fi­cult con­di­tions and help to re­sist ‘built-up edge,’ which is com­mon for cut­ting tools with small f lute vol­umes.

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