Tipped tool

Inserts made ​​of hard metal, cermet, polycrystalline cubic boron nitride ( CBN), polycrystalline diamond (PCD ) or cutting ceramic or rare from HSS or HSSE / HSS -PM and thus serve as a cutting fabric for cutting, for example, metals or wood.

They are produced in the sintering process and can in tool holders (eg turning tool or cutter ) is screwed or clamped to ( Verschraubungsprinzip see also: differential thread ). Indexable inserts usually have multiple cutting edges. For improving the properties are often associated with inserts of hard materials such as titanium carbide (TiC ) or titanium nitride (TiN) coated, in order to improve the wear resistance and heat resistance. Inserts come in various shapes and sizes to be used for specific applications can.

From positive inserts is when the cutting board itself a clearance angle > 0 ° (see Figure 3 - coated cutting board ) has. Negative cutting boards themselves have a clearance angle of 0 °. The necessary editing clearance angle formed by the selective incorporation of the insert in the tool holder (eg drills, routers ). The advantage of negative cutting inserts can be seen both in the stable cutting edge, so that these inserts are to be found especially for heavy duty machining, as well as the fact that twice the number of possible cutting as opposed to a positive cutting insert are available.

Wears a cutting edge and blunt, the plate is simply rotated in positive and negative inserts, or reversed, with negative inserts. Almost always have inserts chip breakers to achieve short-breaking chips during machining. There are different standards, where inserts are described in different variations. An overview of names on the insert and the possible geometric shapes are DIN ISO 1832.