Sandvik Coromant enhances turning tool holders
Sandvik Coromantcontact supplier
Coroturn HP turning tool holders
Sandvik Coromant has extended its Coroturn HP range of turning tool holders with an integrated high-pressure delivery capability.
The coolant jets of Coroturn HP improve machining performance by delivering cutting fluid at the precise point of cut, thereby removing heat more efficiently and reducing the subsequent problems of accelerated wear, according to the company.
The technology also helps to eliminate the re-machining of chips by keeping the cutting zone free of removed material, thus reducing the potential for component damage and permitting the scheduling of unmanned operations.
This is particularly relevant when using multi-task turn-mill centres, where chips gathering around the tool cause automatic tool change problems.
Negative-style inserts are often preferred when machining difficult materials such as heat-resistant super alloys (HRSAs), titanium and stainless steel.
Indexable tool-holding technology featuring integrated high-pressure coolant delivery could help machine shops improve chip breaking, tool life and/or cutting data.
Sandvik Coromant's current tool-holder programme has now been increased with the introduction of a further 38 tool holders in C5, C6 and C8 Coromant Capto coupling sizes, which are designed to accommodate negative inserts in C, S and D styles.
According to the company, the new tool holders can offer up to a 20 per cent increase in cutting speed when roughing difficult materials and up to 50 per cent more tool life when roughing or finishing challenging workpiece materials.
When combined with the quick-change Coromant Capto system, the Coroturn HP coolant system harnesses a high-pressure capability of up to 80bar in turning centres, vertical turning lathes and multi-task machines.
Sandvik Coromant has introduced CoroTurn 107 cutting units with high-pressure, high-precision nozzles to meet the challenges posed by the turning of slender components, including long chips, vibration and deflection. CoroTurn 107 with HP coolant will minimise the risk of insert breakages, chip jamming and machine stoppages.
Sandvik Coromant has introduced CoroMill 5B90, a high-performance tool for finishing aluminium components. The tool is suitable for typical automotive industry applications such as machining cylinder heads, gearboxes, valve blocks and motor block crankshaft and deck faces.
Sandvik Coromant has updated its CoroCut 1-2 system for rigid and rapid parting and grooving to feature spring clamp technology. This not only provides increased stability but eliminates the operator judgement required when using a torque wrench on conventional screw clamps.
Despite the significant investment that a new machine represents, the fact that around 70 per cent of machines are purchased un-tooled means that many manufacturers are still missing opportunities to reduce payback times and improve the return on investment (ROI) from their capital outlay. According to Sandvik Coromant, getting machine investment right from the start is the key to reducing payback times.
Sandvik Coromant has announced that its CoroTurn SL cutting heads now feature CoroTurn HP (high-precision) nozzles that direct cutting fluid precisely where it is needed — at the exact interface between the tool and the workpiece. This is said to ensure CoroTurn SL users can be assured of reliable chip breaking, which facilitates both good chip evacuation and extended tool life in back-boring operations.