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Heckert's DBF Integrated Facing Head Delivers One Hit Savings On Oil & Gas Work

Heckert's DBF Integrated Facing Head Delivers One Hit Savings On Oil & Gas Work

Added to MTDCNC by Starrag UK Limited on 12 May 2015
Targeted at the single set-up finish machining of heavy-duty valves, for example, Heckert DBF horizontal machining centres with integrated turning, drilling and milling head can slash machining times for oil and gas valve components by at least 30 per cent.
 
Replacing multiple set-ups involving perhaps ‘standard’ vertical turning machines and horizontal borers with head changing capabilities, where there are traditionally relatively high levels of manual intervention for component unload/reload and head changing/resetting, the DBF 630’s integrated facing head, which can be built into the construction of certain models, enables all operations – boring, milling, drilling, tapping and turning – to be completed in a single set-up. 
 
This eliminates a major source of spindle downtime and potential repeatability problems caused by head resetting. In many cases, too, the machine will eliminate the need for hand finishing
 
Specially designed for the single set-up machining of pump housings, fittings, sealing flanges and Rockbits, as well as valve housings to accuracies of six microns particularly on bore finishes, the new generation DBF machines from the Starrag Group company Heckert are set to transform machining routines on a wide range components that can be accommodated on the 630 mm by 630 mm to 1,000 mm by 1,250 mm pallets, depending on machine model. (Larger workpieces can be handled by the Ecoforce machines available from fellow Starrag Group company, Scharmann.)
 
Such workpieces are often closed-die forgings and a mixture of carbon and duplex steels, Inconel and Super duplex, and are often nickel or alloy-clad. By definition, such materials create specific machining problems in both heavy rough machining and fine finishing of especially ports and ring grooves. 
 
Not only does the DBF 630 boast the rigid construction necessary for such machining, but the advantages of the built-in facing head are overwhelming when considered in conjunction with aspects such as automatic tool changing, high-pressure coolant and on-machine probing.
 
With 45 kW, 1,700 Nm torque spindle and Siemens Sinumerik CNC, DBF machines feature a radial facing slide for the precise and cost-effective machining of complex, asymmetrical workpieces. The slide displaces the rotating turning tool radially (U axis) by +/- 35 mm, to suit, for operation at speeds up to 1,200 rev/min and cutting speeds up to 250 m/min. DBF machines can also be offered with a  turning table. In addition, mills and drills can be driven at 3,500 rev/min.
 
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