SIMPLY. PRECISE. BORES
In order to be able to use honing tools with in-process air gauging (similar to air gauge arbors) in a standard machining center, the air supply interface is fitted to the spindle nose (e.g. for DMG Mori, HELLER, MAG or GROB machines). This allows to produce bores with the tightest diameter tolerances. The honing process is controlled by a industry PC-System that communicates with the machine's PLC control. An automatic bore shape correction system ensures a perfect cylinder bore shapes without conicity.
More information on honing technology on machining centers.
The use of the DIAHON #-honing cycle on e.g. HELLER machining centers creates a constant honing pattern in a defined honing angle in the entire bore. The tribological properties of the surfaces, which can be achieved by using our #-honing cycle (e.g. for oil retention volumes in plateau surfaces or improved friction) as well as the slower accelerations in the stroke reversal points are significant improvements when honing on machining centers.
More information on honing technology on machining centers.
SIMPLY. PRECISE. BORES ... according to this motto, a processing sequence was defined on a hydraulic control housing on a HELLER H6000, in which each step can be measured separately with an exchangeable air gauge arbor and, depending on the measurement result, an automatic diameter compensation (e.g. via the µ-matik interface) is carried out.
The in-process measuring system for a micron-precise diameter determination can be integrated into most CNC machine controls (SIEMENS, HEIDENHAIN, FANUC) via ProfiBus. As a result, process automation and unmanned production runs are now possible in high-precision bore machining in a machining center.
The superabrasive and bore-filling metal bond hones are perfoming the rough honing stage immediately after reaming (with inserts made by URMA) and, at the same time, the tool is guided in a rigid manner, thus ensuring the coaxial reaming process of the following bore sections. With this technique, line marks caused by the reaming blades during the back stroke are avoided, since the bore diameter after FDream processing is approx. 25µm larger than the reamed diameter.
With this combination machining, cylinder bore shape quality less than 2µm and roughness of approx. Rz=6µm can be achieved. In order to further reduce the roughness, one or two more FDhone operations can be carried out so that after the machining sequence a cylindrical bore shape of less than 1µm with Ra<0.2µm is achieved.
The coolEX®float honing tool technology enables classic hydraulically controlled honing in a machining center or turning/milling center with compensation of axial offset and angle errors without technical modifications to the machine and with regular honing kinematics (expansion during machining). The classic honing kinematics produces the desired hash pattern in a defined honing angle
Find more in coolEX®float Werkzeugsystem.
The µ-matik® interface in FDhone and coolEXact tools enables high-precision wear adjustment automatically via the machine spindle. The µ-matik® unit mounted in the machine's work area is approached by the tool. The tool's diameter is then adjusted by a rotary movement of the spindle (accurate to the degree).
In combination with a measuring option in the machine, unmanned machining is possible and tool setup times are minimized.