Robot assists large-scalelaser cutting cell

A suite of automation solutions from FANUC has proved integral to the delivery of an industrial-scale laser cutting cell commissioned by the UK’s Manufacturing Technology Centre (MTC). Constructed bysystem integrator Cyan Tec Systems, the demonstration cell comprises a 12 x 4m cutting table and, from FANUC, a six-axis robot, a CNC system for the flatbed, and the laser, all contained within a laser-secure enclosure.

FANUC was the clear choice for automation partner on this project, as Cyan Tec’s project co-ordinator Grant Copson confirms: “The main reason for working with FANUC was the fact that they could offer a seamless automation solution incorporating not just the robot but also the laser and motion system.”

The system sits at the upper end of industry expectations in terms of scale to show those visiting the MTC what is possible within automated laser cutting. There is real scope for using the cell within the aerospace and automotive industries, or any sector that requires large-scale pre-cut profiles. The construction sector could also benefit from cells of this size, in particular for precision cutting of profile sections used in prefabricated buildings.

The cutting table and robot sit inside a large enclosure measuring 15.5 x 9m, but the space requirements go even further. The cutting table slides out an additional 13m, ensuring that if an operator wants to load a 12 x 4m product, he or she has adequate access to do so, even if this requires the use of a crane or forklift truck.

The laser cutting bed handles flat plate, while the FANUC M-20iB robot cuts tubular sections. Notably, the robot’s six axes siton a floor track and drive synchronously with a FANUC seventh axis, allowing it to move up and down the tube in cut.
For further information laser@the-mtc.org

Subcontractor progresses to five-axis machining

In its 20,000 sq ft, purpose-built factory in Hayes, near London Heathrow airport, subcontractor Wellington Engineering uses 45 CNC machine tools to produce parts for sectors as diverse as aerospace, medical, semiconductors and cryogenics. The latest machine to arrive on the shop floor isa Hurco VC500i machining centre.

Owner and managing director Daimon Wellington says: “We recently adopted a strategy of looking to take on more complex prismatic machining work and had already identified a number of contracts. It was just a question of finding a suitable machining centre.Full five-axis capability was the next step up for us in terms of technology and, as we use a lot of Hurcos, we decided to source our first true five-axis machining centre from them.”

The cantilever-type VC500i is ergonomic for easy operator access, has a 520 x 450 x 400 mm working volume and a ±100° swivelling trunnion carrying a rotary table, suitable for machining five faces of a component in a single set-up. It reduces the number of separate operations needed compared with using the subcontractor’s three- axis machines, including those fitted with single- or two-axis dividing heads.

Wellington says: “Our other machining centres were taking too long to produce the increasingly complex components. Productivity drives profits and we’ve had excellent results in this respect since the five-axis Hurco arrived. Parts come off much quicker and we’re not tying up the capacity of our other machines and their operators. Also there are far fewer issues with workholding and there is less deburring and hand fettling, all of which saves time.With five-axis strategies, jobs are coming off more economically in shorter cycle times.”
For further information www.hurco.co.uk

Ground-breaking flagship NMIS facility opens

The National Manufacturing Institute Scotland (NMIS), operated by the University of Strathclyde, has opened its new flagship facility in Renfrewshire. Acting as a magnet for advanced manufacturing in Scotland and across the globe, the distinctive heather-coloured, 11,500 sq m operationally carbon-neutral campus next to Glasgow Airport will support manufacturing, engineering and associated technology businesses of all sizes. Innovative R&D will help them to become more productive, tap into emerging markets, embrace new technologies and achieve net-zero targets.
For further information www.nmis.scot

Familiar face retires

Martin Leaper, the Midlands’ areasales manager for MACH Machine Tools and Machine Tools Sales Online (MTSO) – both part of the Vigilance Group – retired at the end of last month. Leaper is a well-known, popular and seasoned sales professional with over 38 years of experience.During his 47-year career he held a number of senior sales, product and managing director positions at machine tool companies such as Bridgeport, Mikron, Matsuura and XYZ.He joined the Vigilance Group in November 2020, where he was instrumental in helping drive sales growth for both MACH Machine Tools and MTSO.
For further information www.machmt.co.uk

Burr-free results using supercritical CO2 coolant

Supercritical CO2 milling of medical plastics using a Mikron Mill S 400U simultaneous five-axis machining centre from GFMS equipped with a Fusion Coolant Systems’ sc-CO2 delivery system produced impressive burr-free results in trials organised by GF Machining Solutions and the Competence Centre for Machining (KSF) at Furtwangen University IFC, Tuttlingen.

Ultra-high molecular weight polyethylene (UHMWPE) is a common material used in medical orthopaedics.The material’s durable, low-friction surface acts as a spacer that ensures mobility for knee, hip and shoulder implants. However, machining this material with traditional milling techniques results in the formation of burrs that often require manual removal in a secondary process.In addition, as the thermal expansion coefficient of UHMWPE is more than 12 times higher than steel, controlling heat during machining operations is essential to achieve the tight tolerances and high dimensional accuracies required for implants.

In recent tests, the effects of using supercritical CO2 cooling (sc-CO2) for the milling of spacers, using a Mikron Mill S 400 U five-axis milling machine equipped with a Step-Tec 42,000 rpm spindle and a Fusion Coolant Systems’ Pure-Cut+ sc-CO2 delivery system, were undertaken. The sc-CO2 is capable of providing CO2 up to 110 bar pressure and includes a Pure-Cut+ MQL delivery system.

Two different spacer cutting trials took place: slot cutting using a 3mm single-blade end mill andfive-axis milling using a 6 mm ball-nose endmill.The results obtained in both trials indicate a significant reduction in burr formation, improved workpiece accuracies and better surface quality.These factors point toward a more reliable machining process that may greatly reduce, or even eliminate, manual deburring.
For further information www.gfms.com