Oerlikon Surface Solutions Ag, Pfaffikon

Oerlikon Trading Ag, Truebbach

Oerlikon Trading Ag, Trubbach

Gerhard Peyerl

Jens Eggemann

Josef Vogel

Detlev Bross

Klaus Springer

Michael Balint

The invention relates to a deep-hole drill, comprising a first coating extending over the effective length of the guide section and a second coating that is applied to the tip of the drill in the cutting region, the region of which extends over an axial length that, at a maximum, corresponds to double the nominal diameter of the drill. In such a way, when the bore tip is worn by use, said tip can be recoated after sharpening without the nominal diameter of the drill tip substantially increasing, in particular even after being sharpened several times.

Deep hole drill comprising a coating

A saw band of steel for a band saw machine with a band back (Br) and with a tooth row arranged thereon having several teeth (), wherein the initial tooth form () is triangular with a tooth base with tooth width (b) and with the tooth tip () with a first tooth height (h), such that the tooth tip () does not project beyond tooth width (b) in the band running direction (L), wherein the lateral side of the triangle located in front in the running direction (L) forms the rake face () and the rear lateral side forms the clearance face () of the tooth (). The tooth tip () of the triangle is specifically removed for the development of a rounded-off tooth crest () with a reduced second tooth height (h), wherein at least in the proximity of the tooth crest () a hard material coating covers at least partially the cutting face formed of the tooth crest (), the rake face () and the clearance face ().

Saw band and method for the production of same

Growing community of inventors

Geisenheim, Germany

Gerhard Peyerl