WFL Technology Meeting 2022 Latest automation and software solutions for efficient machining processes

Source: Press release MA Alexander Stark

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The WFL Technology Meeting took place in Linz, Austria, from 12th to 23rd June 2022. Live machining on all Millturn machine types and the latest automation and software solutions were shown. The program comprised expert discussions and presentations on the pioneering trends and developments in the industry.

The first day of the WFL Technology Meeting started with a press conference. Norbert Jungreithmayr (CEO), Günther Mayr (Managing Director Sales, Technologies and Services), Reinhard Koll (Head of Application Technology) and Jürgen Schmid (Design Tech) provided information on new machines and technology innovations.
The first day of the WFL Technology Meeting started with a press conference. Norbert Jungreithmayr (CEO), Günther Mayr (Managing Director Sales, Technologies and Services), Reinhard Koll (Head of Application Technology) and Jürgen Schmid (Design Tech) provided information on new machines and technology innovations.
(Source: WFL Millturn Technologies)

After the WFL in-house exhibition 2021 had to be cancelled due to the Covid-19 pandemic, WFL was once again able welcome about 1,000 guests to the industry event. Live machining of workpieces with a diameter of 100 mm to 1,180 mm and a length of 150 mm to 5240 mm were presented during the exhibition.

The visitors experienced heavyweight machining on a M150 Millturn, screw machining on a M50 Millturn / 4500 mm and the presentation of the latest machine: the M20-G. Automation was the topic of many discussions: bin picking, scanning and picking of unoriented workpieces, systems controlled by a host computer or interlinking of machines. A special highlight was the Mobile Cell in combination with the M65. The Mobile Cell is a robot on an AGV (Automated Guided Vehicle) that loads and unloads tools, clamping devices and/or workpieces. With processing times between 30 and 60 minutes, the competitive advantage can be fully exploited with this solution and the customer retains the full degree of freedom. The system is also suitable for retrofitting automations.

Another important subject was sustainability. According to WFL, it is not only important to have energy-efficient processes, but also to achieve the right ranking, since more and more customers are being assessed according to ESG criteria (Environmental Social Governance). WFL achieves these criteria through the technology used (e.g. energy-efficient drives) and the extremely efficient complete machining process. An optimal degree of utilization as well as the reduction of space costs, intermediate storage costs and quality control costs, and much more is guaranteed by the complete machining process.

Machines and technologies.

The modular system of the M150 Millturn has been expanded by revising the machine bed. The machine is ideally suited for workpiece weights of up to 25 tons, thanks to larger guide distances and dimensions and more powerful drives. The grinding of bearing points and roll-feed turning, a efficient process for machining hard surfaces, where demonstrated on a roll from a steel mill. A large gearing with module 38 was milled at the right end of the workpiece. The workpiece did not have to be unloaded, but was measured directly in the machine. If necessary, a corresponding automatic correction is carried out for the programs and tools before finish-milling the gearing.

The M50 is the second machine type that has been fundamentally expanded. The machine can now be equipped with a more powerful turning-boring-milling unit, a larger tool system, larger tool magazines as well as longer tools with increased weight. The machine itself has also grown to a maximum center distance of 6,000 mm. This means that there is hardly any configuration request that WFL cannot meet.

The M50 also has a few helpers on board: iJaw, a sensory clamping jaw by Röhm, ICO tronic, a sensory tool, and an automatically exchangeable ultrasonic probe measuring wall thickness at any point. This measuring probe recognizes and automatically compensates for deviations in the bore hole. Moreover, there is a completely new laser scanner which can also be automatically exchanged and allows scanning of any shapes and geometries on the workpiece as well as comparing the scanned surfaces with a target 3D model. A false-color image shows the extent to which the manufactured workpiece corresponds to the target model, and the color variations indicate how far the component deviates from the target geometry. A very interesting solution bearing huge potential.

Digitalisation minimises interruptions

During machining operations, there are always interruptions requiring operator intervention, such as measurements and controls. It is important to minimise these interruptions to make best use of the availability and productivity of the machine. This is ensured by software packages in the machine control as well as additional intelligent clamping devices and tools automating the processes.

One of these tools is WFL iControl, the new process monitoring system. iControl directly processes signals coming from the machine or from external sensors, such as coolant flow rate, coolant pressure, vibration sensors in a boring bar or the clamping force of a clamping jaw.

Machine states are recorded with my WFL Cockpit. The program monitors override positions and logs program runtimes. This provides a constant overview of the machine's productivity and the variability of program runtimes.

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My WFL Energy permanently measures and logs the machine's energy and compressed air consumption. This consumption can also be broken down into individual tools or process steps, allowing comparisons to be made. The solution g enables the user to move spindles and axes by running an idle program at cyclical intervals. The program uses sensors to record forces and vibrations. Long-term evaluation shows, for example, whether there is an imminent change in the bearing or in one of the guide systems. This helps to avoid unforeseen downtimes and plan machine maintenance in a timely manner.