SpiroGrooving™ is an innovative method for seal ring grooves developed by Sandvik Coromant that ensures high output of quality components and meets tough security demands. Used with the CoroBore® XL system, it utilises a spirograph tool path to create close-tolerance seal ring grooves in a very secure and productive way.
Requiring close tolerances and high-quality surface finish, seal ring grooves is a critical feature on many oil and gas components. Conventional methods for machining seal ring grooves often suffer from slow production and poor process security. Multiple-operation approach, incorporating both roughing and finishing sequences, is another time thief. The tools that are being used are single point or plunging cutters that are prone to vibration. Adding to the challenges is the common use of difficult-to-machine materials such as solid Inconel 718 and cladded Inconel 625. SpiroGrooving is a machining method used with the CoroBore® XL system that utilises a spirograph tool path to create close-tolerance seal ring grooves in a very secure and productive way.
High quality and process security
This solution is ideal for making seal ring grooves in pre-clad machining of steel and stainless steel. The unique internal coolant feature of CoroBore XL facilitates machining in advanced materials. Roughing and finishing are carried out in the same operation, which significantly reduces machining time and improves productivity. Altogether, this ensures high output of quality components and process security when machining seal ring grooves.
How it works
SpiroGrooving uses a circular spirograph tool movement in a taper. This reduces chip thickness, enabling light cutting action and increased feed. Parts of the insert cutting edge have an interrupted cutting behaviour, eliminating long chips tangling to the tool and spindle. With a unique NC-code generator, SpiroGrooving is programmed just in a few easy steps.
New vibration damper for deep hole machining
Sandvik Coromant has introduced a new vibration damper that helps to maintain stable production during Deep Hole Machining (DHM) operations and support increased machine tool utilisation. Using the machine control adjustment unit, the new device allows operators to step away from the machine and manage process modification without hand tools or the risk of personal injury.
SpiroGrooving™ – an innovative method for seal ring grooves
High material removal rates and precision are the defining characteristics when it comes to DHM, along with hole straightness, dimensional tolerances and surface finish. With this in mind, it comes as little surprise that security is paramount to success.
When producing long parts on STS (Single Tube System) machines, operators face a number of process-critical challenges. Many DHM operations are extremely demanding, pushing machining performance to the limit. This can generate higher forces and stresses within the tooling system, which in turn can become problematic in terms of vibration. As a consequence, operators are often faced with manual adjustment of the clamping unit on the vibration damper. When a large workpiece is rotating, adjusting the clamp by hand is not a straightforward operation – it is difficult to get right immediately because of the accuracy needed. What’s more, the risk of injury is elevated considerably.
New vibration damper for deep hole machining
The Sandvik Coromant vibration damper provides the solution. The device dampens vibration, leading to first class precision and surface finish. In addition, it does this using the machine control, facilitating a stable production process, safely. There is even a self-locking unit in the event of a power loss. Of course, when vibration is under control, another benefit arrives in that excessive tool wear is no longer an issue. The result is increased machine uptime and a safer working environment.
The new vibration damper from Sandvik Coromant offers bi-directional functionality ensuring it can be deployed for both push and pull applications.
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In the CoroPak 15.1 update you will find out more about CoroMill® Plura Heavy Duty end mills, CoroMill® QD and InvoMilling™.
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