High-feed cutting in hardened steels with XFeed-H

ap ap Toric tool Low axial forces Fa do not help to stabilize the tool during operation. A high radial force Fr ensures a high degree of displacement during machining. The cutting force Fc acts only on the area of the radius, meaning wear is also concentrated only on the radius. This massively increases the risk of chipping of the cutting edge. XFeed-H Axial force Fa stabilizes the tool and directs the cutting force in the direction of the tool holder. Radial force Fr ensures minimal displacement during machining. Result: The cutting force Fc is distributed across the end cutting edge (6x cutting depth ap) and this consequently reduces the degree of wear and the risk of cutting edge chipping at high feed rates. The shape of the end cutting edge of the XFeed-H greatly increases the effective length of the cutting edge. As a result, the mechanical stress and wear are optimally distributed along the end cutting edge. Feed rates and therefore also the chip removal rate can be significantly increased. Due to the lack of a curved cutting edge, the tooth face width can be increased, giving the tool extra stability. The forces resulting from the high feed rate are consequently absorbed with ease. Wear on XFeed-H Wear on toric tool Conventional geometry and coating Vc = 60 m/min, n = 3,200 rpm fz = 0.146 mm/z, vf = 1,890 mm/min, ap = 0.15 mm, ae = 3.3 mm XFeed-H with DURO-Si coating Vc = 60 m/min, n = 3,200 rpm fz = 0.146 mm/z, vf = 2,790 mm/min, ap = 0.15 mm, ae = 3.3 mm After 60 minutes After 60 minutes Penetration edge facilitates excellent performance [ 3 ]