Abstract: The invention relates to a hard metal or cermet body comprising a single or several adjoining surfaces. A first layer with a thickness of between 2-100 ?m is located beneath the single surface or at least one of the surfaces, said layer comprising an auxiliary metal fraction of between 2 and 25 mass % and up to 25 volume % nitrides or carbonitrides of one or more metals of the IVa group of the periodic table and/or up to 10 volume % carbides and/or carbonitrides of the elements V, Nb, Ta and/or Cr, with WC making up the residual amount.

Abstract: The invention relates to a hard metal or cermet cutting material for cutting chromium-alloy steel parts. Said cutting material comprises a hard phase containing carbides, nitrides and/or carbonitrides and a binder phase based on iron, cobalt and nickel. The aim of the invention is to prevent an agglomeration of the cutting material during cutting operations. For this purpose, the binder phase contains 10% by weight to 75% by weight of Co, 10% by weight to 75% by weight of Ni, 5% by weight to 30% by weight of Cr, ?20% by weight to 60% by weight of Fe, the total of Co, Ni, Cr and Fe not exceeding 100% by weight.

Abstract: A dental articulator comprises a pair of upper and lower brackets for upper and lower artificial dentures, respectively, with a support between the two brackets. The upper bracket is pivotally interconnected to the support for vertical swinging movement of the upper bracket relative to the occlusal plane of the articulator. The support and the lower bracket are slidably interconnected for relative movement in a forward and rearward direction parallel to the occlusal plane and perpendicular to the axis of vertical swinging of the upper bracket. The support and lower bracket can also have limited relative rotational movement in a plane parallel to the occlusal plane. A plate is insertable and removable in the articulator in inverted positions, so that in one position the upper surface of the plate lies in the occlusal plane and in the inverted position the under surface of the plate lies in the occlusal plane.