2014-03-26

Precision boring with a feather-light touch

​Since autumn 2013, Walter has offered its counterboring and precision boring tools with Capto interfaces. With the new, reduced-weight Walter PrecisionMEDIUM B4031.C, the tool system is being expanded further under the "Light Weight Solution" label. This means: Sustained performance with reduced weight.

The latest addition to the Walter Precision range is the B4031.C single-edged precision boring tool – in a reduced-weight design, which will be available from May this year: "While maintaining the same dimensions, a 30 to 50 per cent weight reduction has been made by replacing some of its steel components with aluminium," explains Gerhard Ruff, Product Manager for counterboring and precision boring at Walter AG: "The tool features the same properties and the same performance levels as its "heavier brother" but is much lighter – with one version weighing 3.2 kg instead of 7.2 kg. This brings several advantages, such as much easier handling for only a marginal price increase." Long tools with a large diameter have the greatest potential for saving weight. For this reason, Walter is first adding the LWS design (Light Weight Solution) into its product range with diameters from 90 to 110 mm and 110 to 153 mm.

Today many machine tools include a Capto interface as standard. The reason for this is clear: this is the most universal interface ever; suitable for turning, drilling, counterboring and precision boring, as well as for milling, in both rotating and static modes. With a unique interface system, all machining disciplines can be performed on lathes, machining centres and turnmill centres.

The Tübingen specialist for precision tools recognised this trend and, since autumn 2013, has extended its systems for counterboring and precision boring – Walter Boring, Walter Precision and Walter PrecisionDIGITAL – to include Walter Capto™ adaptors: A modular and coordinated tool system.

Lightweight tools are particularly beneficial if a machine's tool magazine can only accommodate a limited weight. In addition, handling the tool is made much easier for personnel in the assembly and setting area. The design also protects the machine and spindle as there is a lower weight to accelerate and decelerate. The moment of force is also reduced for the same projection lengths and makes it easier to change the tool. Due to its special construction, the tool is also more effective at reducing vibration.

"There is currently a trend towards lighter tools," explains Ruff. "We are also planning to expand our product range with reduced-weight variants for other dimensions. The B4031.C is currently the only tool with the "Light Weight Solution" label but is certain not to remain the only one. It is conceivable that "Light Weight Solution" tools will replace the full steel versions for certain diameters in the mid to long term."