Toolholding Coming to grips with turbine and impeller machining

Editor: Barbara Schulz

Switzerland - Excessive vibrations are the nemesis of surface quality and tool preservation. Not so for Liechti Engineering where toolmakers rely on a clever clamping system produced by their compatriots at Rego-Fix.

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Whether blisks, turbines or impellers - Liechti Engineering performs all roughing and finishing processes in a single clamping operation for high accuracy and production efficiency.
Whether blisks, turbines or impellers - Liechti Engineering performs all roughing and finishing processes in a single clamping operation for high accuracy and production efficiency.
(Source: Rego-Fix)

Swiss toolmakers Liechti Engineering are keen on process reliability. The company manufactures milling and machining centres and supplies CAM software for producing the complex aerodynamic profiles of turbines, impellers and blisks.

With its long history of creating profile machining technology, Liechti claims reduced production times by up to 30%, an improvement its experts attribute to their know-how of handling advanced materials such as titanium, Inconel, Nimonic and high-alloy steels. Engineers at the Langnau-based firm have now concluded a long-term test of Rego-Fix’s pow-R-grip System, a tool clamping system that claims improved reliability and reduced tool wear by virtue of its constant clamping force.

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"We use the system that is best suited for constructing a workpiece," says Simon Trummer, a Liechti senior CAM application engineer. “Beside working with a reliable partner, we recommend the pow-R-grip system from Rego-Fix. We use it for our in-house finishing processes on turbine blades as its damping characteristics really ensure a flawless surface quality."

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