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New lubricant for mask production

Weber Ultrasonics opts for a lubricant from Zeller+Gmelin for axial grooving.

New lubricant for mask production
Process reliability: Weber Ultrasonics relies on the Horn System S15A for axial grooving. Source: HORN/Sauermann

The manufacturer of ultrasonic welding equipment for mask production, among other things, wanted more process reliability in the machining of materials that are difficult to machine: With tools from Paul Horn GmbH and cooling lubricants from Zeller+Gmelin, the Karlsbad-based specialist for ultrasonic components and systems was able to find two suitable partners at once.


New lubricant for mask production
Ultrasonic welding from Weber Ultrasonics is used for the production of medical masks. Source: Weber Ultrasonics

The ultrasonic systems are used, for example, in the production of a wide variety of medical technology applications, for example medical masks or medical components such as membranes, adapters and connectors and even surgical instruments. In particular, the demand for ultrasonic welding technology for the series production of medical masks made of non-woven fabric has increased dramatically due to the pandemic. The vertical range of manufacture at Weber Ultrasonics is enormous: almost all components and assemblies of the ultrasonic systems are manufactured in-house. For a special titanium component, the so-called converter, the machining process used is grooving, or more precisely axial grooving. In order to be able to guarantee process reliability and long tool life even with increasing quantities, new tool solutions were sought. Previously, chatter marks on the surface of the deep grooves were a recurring problem.


New lubricant for mask production
By using the newly developed cooling lubricant Zubora TTS in combination with the axial grooving system from Paul Horn, swirl chips (left picture with previous coolant) are now optimally broken during the machining of pure titanium TiAI6V4 (right picture with Zubora TTS) and ensure a safe process.
Source: Zeller+Gmelin

Zubora ensures more process reliability
With a new axial grooving system from the Tübingen tool specialist Horn, a process-safe solution was found: the new S15A grooving insert had produced a stable machining process right away. At the same time, a new cooling lubricant is used in the form of Zubora TTS, which was developed in a joint project between Horn, Zeller+Gmelin and a major machine manufacturer. "All the experience of the lubricant manufacturer, machine builder and tool specialist has gone into the development of the new lubricant," says Jürgen Schmid, Product and Project Manager Sales at Horn, seeing an enormous advantage. "The idea of the project was to develop a new and more efficient coolant for the machining of superalloys. Zeller+Gmelin has achieved this with the development of the new coolant." And Business Unit Manager Thorsten Wechmann from Zeller+Gmelin adds: "After successful tests on various superalloys, the first field test at Weber Ultrasonics was now on the agenda. By using Zubora TTS in combination with a new tool coating, the tool life could be significantly increased. The completely new formulation leads not only to an increase in tool life but also to an improvement in the surface quality of the component. Furthermore, it was possible to increase the cutting parameters and thus sustainably increase profitability."


New lubricant for mask production
Long service life guaranteed: With optimally matched formulations, Zeller+Gmelin convinces customers such as Weber Ultrasonics of its high-performance lubricant Zubora for metal cutting. Source: Zeller+Gmelin

Chip breaking under control
Weber Ultrasonics says that by optimally matching the tool and the cooling lubricant, it has been possible to significantly improve chip control. As a result, 50 of the titanium components can now be produced off the shelf in an unmanned shift, so to speak, and the problem of uncontrolled long chips is now a thing of the past. Tool wear has also improved measurably and visibly thanks to the new Zubora coolant.


New lubricant for mask production
Thorsten Wechmann, Business Unit Manager at Zeller+Gmelin: "After successful tests on various superalloys, the first field test at Weber Ultrasonics was now on the agenda. By using Zubora TTS, the tool life could be significantly increased. The completely new formulation leads to an improvement in the surface quality of the component in addition to an increase in service life." Source: Zeller+Gmelin

The new cooling lubricant Zubora TTS is a fully synthetic solution. According to manufacturer Zeller+Gmelin, the focus of the novel concept was on lubrication, chip breakage support and surface quality improvement. "We have developed the new coolant for the productive machining of titanium and other super alloys. However, the product can be used multifunctionally and also brings advantages when machining a variety of other materials," explains Thorsten Wechmann.

www.zeller-gmelin.com

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