20% faster cycle times with new control

German machining centre manufacturer Röders has introduced to its range an upgraded CNC system capable of programming and controlling a full range of metal-cutting operations more efficiently, from roughing and high-speed milling, to micron-accuracy jig grinding.

Available on its three- and five-axis machining centres, the Racecut control enables demanding precision requirements to be met, while at the same time delivering high cutting performance, including when machining hard materials. Availability of the machines in the UK and Ireland is through sole sales and service agent Hurco Europe.

Underpinning the high performance in terms of accuracy and speed are frictionless linear drives and 5 nm resolution glass scales. These combine with the benefits of the new CNC system, which has a high clock rate of 32 kHz. The smallest deviations in cutter paths can be detected and corrected, even during high-speed cutting, raising processing speed and optimising surface quality. Tests carried out by the manufacturer indicate that it is possible to reduce machining times by as much as 20% while maintaining the same surface finish.

Additionally, extensive compensation in the control for deviations in the angular position of the rotary table and swivelling trunnion of five-axis machines, plays a central role. Particular attention has also been paid to the control’s ability to compensate precisely for spindle growth, while a further notable feature is the patented, frictionless weight compensation system in the Z axis.

For thermal stability to ensure positioning accuracy of less than 1 µm, the machine has sophisticated temperature management. The temperature of the medium that flows through all key elements is controlled to an accuracy of ±0.1°C, which may be extended down to ±0.02°C for certain applications.

For further information
www.hurco.co.uk

Automated heavy part production in six axes

New CAM technology introduced by Hexagon’s Manufacturing Intelligence division makes it possible to use complex six-axis milling machine tools for the production of large parts. The specialist programming tools provide accurate simulation and generate efficient six-axis tool paths to ensure that these advanced machines offer increased productivity.

Hexagon’s Edgecam software features new tools that focus on six-axis machines equipped with two rotary axes on the head and one rotary table, where this sixth axis enables milling tools to machine all sides of a large part, including areas that are otherwise impossible to reach without repositioning workpieces. The new dedicated six-axis tools provide greater tool-path control and more accurate simulation of processes, reducing the need for expert intervention on the shop floor, improving the utilisation of advanced machinery and avoiding the risk of costly damage.

Edgecam improvements additionally provide greater flexibility for five-axis milling by offering tools that allow CNC programmers to select the level of automation they prefer when creating tool paths. Using these tools, programmers can choose to automate tool-path generation, manually create all tool paths, or generate tool paths using a combination of automated and manual tools. The ability to customise programming preferences increases control over exactly how parts are machined, helping users reduce programming time on tasks that are simple to automate and making it easier to work more closely with complex tool paths when needed.

Productivity is also improved with rough grooving operation optimisation that eliminates unnecessary machine movement, resulting in a cycle time reduction of up to 60%.

For further information
www.edgecam.com

Make plans with hyperMILL Best Fit

Open Mind’s hyperMILL Best Fit is a new function to help optimise the planning of machining operations. Instead of having to manually align the un-machined part that is clamped in the machine to the NC program, the hyperMILL CAM system aligns the NC program automatically to the component position. This method saves time and increases process reliability, especially with carbon fibre parts, as well as cast, forged, welded and additively manufactured stock featuring small or irregular allowances.

The hyperMILL Best Fit function takes full advantage of the options offered by the virtual machine in the CAM program and communication protocols within a five-axis machining centre that make it possible to undertake 3D measurements and eliminate the uncertainty which comes with manual alignment.

Up to now, it has been standard practice to adapt the stock and the clamping in the machine to the conditions of the NC program. One way to solve this time-consuming issue is to align the component in CAM in real-time. The unaligned stock is probed on the machine by way of a 3D measurement. Then, the measurement log is sent to the CAM system, and hyperMILL Best Fit adjusts the NC code to the actual position of the component. Virtual world programming is adapted to real world clamping, not the other way around. Finally, the adjusted NC code is simulated in the virtual machine on the actual clamping set up, followed by automatic optimisation.

“What makes this unique is that unlike previous solutions available on the market, hyperMILL Best Fit does not change the origin on the controller and generates completely collision-checked tool paths,” says Manfred Guggemos, product manager at Open Mind Technologies.

For further information
www.openmind-tech.com

Healthy future for subcontractors

Research from Subcon has revealed that more than half (58%) of UK manufacturing businesses currently export, and that exporting volumes have increased for 32% of them over the past 12 months. The research also showed that 83% expect to increase export levels over the next 12 months, while exports are anticipated to grow by up to 10% for half of respondents, and 11-20% for the remaining half.

Two thirds (69%) of manufacturing and engineering businesses used subcontractors in the past year, with 48% expecting to increase the proportion of work given to UK subcontractors over the coming 12 months. This is mainly driven by a lack of in-house capacity (45%), a desire among manufacturers and engineering businesses to focus on core competencies (38%), and gaining access to skills that are lacking in-house (35%).

For further information
www.subconshow.co.uk

Mid-range press brake with ATC

With over 300 ATC (Automatic Tool Change) press brakes installed throughout Europe and more than 1000 globally, Amada is bringing the company’s proprietary ATC technology to its mid-range line-up for the first time. Previously only available on high-end press brakes such as the Amada HG-ATC and its predecessor the HD-ATC, the new Amada HRB-ATC mid-range model responds directly to market demand for a solution of this type using original Amada tooling.

The HRB-ATC features a full size ATC, offering exactly the same number of tool storage racks as the company’s high-end HG-ATC press brake. Furthermore, the machine comes with a package of Amada tools based on an assessment of the customer’s manufacturing requirements. Importantly, the HRB-ATC is completely compatible with Amada AFH/Promecam standard tool sets. As a result, any existing customer using these tools can load them manually to the new machine if desired.

A CNC press brake with ATC capability brings many advantages to companies that want to increase the amount of time their press brake is engaged in actual bending activities. The ATC can reduce set-up times by up to 80% in comparison with an operator loading a tool manually, which is a clear benefit for subcontractors or companies that undertake several tool layout changes a day.

With its ATC and rapid set-up potential, the new press brake is suitable for those processing small batch sizes. Subcontract fabricators serving markets such as refrigeration, kitchen equipment, retail display, furniture and construction, for instance, will benefit.

The machine is initially available as a 100 tonne/3 m model, with a 220 tonne/4 m model planned for release later this year.

For further information
www.amada.eu