Koninklijke Philips Corporation N.v.

Dirk Herbert Johan Teeuw

Ype Bernardus Brada

Ytsen Wielstra

Jolanda Harma Sagitta Winkel

Jan Auke Hovius

The invention relates to a cutting member () includes a plate-shaped substrate () on which a tip () is provided which is bounded by a cutting edge (). According to the invention, the tip includes an ultimate tip () and a basic tip (), the ultimate tip extending from the cutting edge over a distance dand having a profile which at least approximates the equation w=a.d, and the basic tip connecting to the ultimate tip and having a profile which at least approximates the equation w=a.(d+R), where w is a profile thickness (in &#x3bc;m) and d is a distance (in &#x3bc;m) from the cutting edge (), and nis smaller than n, and a=a.(d+R)/d. In this manner, the profile of the ultimate tip is relatively robust and the profile of the basic tip is relatively slender, as a result of which the cutting member has a comparatively high resistance to wear, and the cutting forces of the cutting member are comparatively small. In one example, n=n.d/(R+d), resulting in the basic tip () connecting to the ultimate tip () without a kink, so that the cutting forces are further reduced. In another example, the ultimate tip and the basic tip comprise a coating () made from a material, for example diamond-like carbon, having a higher modulus of elasticity than the material from which the substrate () is made.

Cutting member with dual profile tip

Method of applying a marking or image on a substrate which is provided with a coating by means of a sol-gel process. After the application of a layer of a sol-gel solution on the substrate, an ink which is compatible with the sol-gel is applied on the wet layer. The ink penetrates into the layer and then the layer is cured to form the coating.

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Drachten, Netherlands

Dirk Herbert Johan Teeuw