The first wiper geometries were first introduced by Sandvik Coromant in 1997.The wiper technology for turning is based on a carefully developed series of radii that make up the cutting edge. On a conventional insert, the nose of the edge is just one radius. The wiper edge, however, is made up of a large, main radius complemented by several smaller radii.
In this figure you see the geometry of a standard insert (top) and a wiper insert (bottom).
When machining with a standard insert, the surface finish roughness is determined by the feed-rate in mm/revolution and the nose radius of the insert. These are in a direct relationship to the scallop height of the surface H see above figure. This means that the higher the feed, the rougher the surface generated by the edge of a given nose radius.
Wiper inserts have changed this through the effect of their specially developed edges that smooth the scalloped tops that would otherwise have been created. So we can say that turning with wiper inserts we create a surface roughness quality that is better than with a standard insert?
| Country: | NL |
| Address: | Stodt Hengelo, Foundry 212, Hengelo 7553 HV |
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