Sandvik Coromant
The Sandvik Coromant CoroPlex HDT Y-axis round insert in action.
The Sandvik Coromant CoroPlex HDT Y-axis round insert in action.
The Sandvik Coromant CoroPlex HDT Y-axis round insert in action.
The Sandvik Coromant CoroPlex HDT Y-axis round insert in action.
The Sandvik Coromant CoroPlex HDT Y-axis round insert in action.

New Tools for Y-Axis Turning

March 9, 2023
A novel technique produces complicated shapes and pockets with a single tool, and also offers benefits such as reduced cycle time, improved component surface quality and more stable machining.

SANDVIK COROMANT has developed two new tools to support a new turning method – Y-axis turning. The new CoroTurn® Prime variant is recommended for turning shafts, flanges, and components with undercuts. The CoroPlex® YT twin-tool, featuring CoroTurn TR profiling inserts and CoroTurn 107 round inserts with rail interface, can be used for components with pockets and cavities.

The new Y-axis turning method makes it possible to produce complicated shapes and pockets with a single tool, and also offers benefits such as reduced cycle time, improved component surface quality and more stable machining.

The technique makes use of the Y-axis, and all three axes are used simultaneously when machining. The tool rotates around its own center, the insert is placed for machining in the Y-Z plane and the milling spindle axis interpolates during turning. This allows intricate shapes to be machined with a single tool.

The ability to machine several features with a single tool reduces cycle time, and no tool changes are required, which minimizes the risk of “blend points,” or irregularities between adjacent machined surfaces. The main cutting forces are directed into the machine spindle, thus improving stability and reducing the risk of vibration. A constant entering angle drastically improves chip control and makes it easier to avoid chip jamming.

To summarize, Y-axis turning is a method for simultaneous three-axis turning with interpolation of the milling spindle axis. The new tools can also be used in “static mode” with a locked spindle for flexible two-axis turning with fast insert indexing. The method is suitable for all materials and requires a multitask machine with options to allow interpolation of the milling spindle axis during turning.

“One could say that these advances, together with progressive capabilities in modern machines and CAM software, have paved the way for the new Y-axis turning method,” explained Staffan Lundström, product manager, Turning. “And with the tools and method now in place, we look forward to exploring the possibilities this method can present to our customers.”

Learn more at www.sandvik.coromant.com

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