FEATURE ON CNC MILLS & MACHINING CENTRES

New MACH three-axis machine on display

MACH Machine Tools used the Southern Manufacturing exhibition in Farnborough earlier this month to showcase two DynaPath-controlled milling machines, including a new three-axis model.The MACH MDT-1 turret-type mill, one of the company’s best-selling models, shared centre stage with a new MDV 800 three-axis CNC vertical machining centre that only recently made its UK debut at the company’s open house in January.

While the MDT-1 turret-type mill, with its rigid design and build, powerful spindle and good-sized working envelope offered obvious appeal to visitors, large and small, it was the new production-oriented MACH MDV 800 vertical machining centre that pulled in the crowds.

The new MDV-series, comprising the MDV 800 and MDV 1100 machines, is a high-performance range of machining centres that MACH Machine Tools says delivers excellent cutting performance and improved process efficiencies.In addition to the DynaPath WinDelta CNC control, the machines featurea BT 40 air-cooled, high-torque (11-15kW) 8000rpm spindles as standard. Options includea direct-drive 12,000 rpm spindle with spindle chiller and through-spindle-coolant capabilities.

Other standard features include: Hiwin linear roller guides; 24-position swing-arm ATCs; and generous-sized worktables which, on the MDV 800, are 1000x 500 mm with a 500kg maximum load.

Both MDV machines are fast, boasting 36m/min rapids on all axes and, for improved process reliability, feature a full enclosure with armoured telescopic covers. The machines deliver precision resultsthrough the use of C3-class PMI precision ball screws, while laser interferometer dynamic lead screw compensation enables 6µm positional and 3µm repeatable accuracies across the work envelope.

The DynaPath WinDelta control, available on all new CNC lathes, toolroom mills and machining centres from MACH Machine Tools, was another main attraction on the company’ stand at Southern Manufacturing.

For further information www.machmt.co.uk

Plus version of Hurco VMC has uprated features

One of Hurco’s best-selling three-axis vertical machining centres (VMCs), the VM30i with a 1270 x 508 x 508 mm working envelope in a compact footprint of approximately 4.1 x 2.7 m, is now available as a Plus version. The machine has been upgraded from a singlescreen to a twin-screen WinMax control and offers a 12,000 rpm/15 kW spindle instead of a 10,000 rpm version. Additional new benefits include 20 bar through-spindle coolant, LCD remote jog and an auger for efficient swarf evacuation.

Philip Carr, an applications engineer at Hurco Europe in High Wycombe, gave an insight into the advantages of the upgraded machine. He started by demonstrating the power of the spindle, with a Kyocera SGS seven-flute end mill ripping into mild steel to a depth of 50 mm. He was running a program with tool paths created using UltiPocket, a milling software option within Hurco’s WinMax programming and control software that allows the boundary of a component to be defined and then pockets or islands within it. The approach eliminates complex calculations and shortens part programming time.

Carr pointed out that the addition of a second control screen allows the generation of a graphical component image as cycle programming takes place and the display of a full simulation after it is complete. Operators receive a precise visual representation of the cycle and the ability to slow down the simulation, enhancing understanding and analysis.

“Utilising a Hurco VM30i Plus with our WinMax twin-screen control system, a manufacturer can take advantage of a powerful piece of production equipment that doubles as a VMC and a CADCAM system,” states Carr.

For further information www.hurco.co.uk

XYZ Machine Tools helps to keep vans safe

Exeter-based Van Guard Accessories has invested in a new XYZ 750 TMC vertical machining centre with ProtoTRAK RMX control and 20-station carousel tool changer. The machine enabled this progressive manufacturing business to bring in-house the manufacture of prismatic parts for its ULTI Lock hook-lock, which is the first ‘Sold Secure’Gold level hook-lock for vans.

The first part on the new machine was the lock’s face plate. Fixturing was designed so that 22 face plates could fit on onepallet. Previously, countersinking of the face plates to three different depths took place manually, requiring 15 minutes per part. To subcontract this operation cost £1.10 per component, so in-house machining was easy to justify with a cycle time of 30 seconds per plate and a payback on the machine of less than three years.

Director of operationsLeigh Andrewssays: “The ULTI Lock has been a raging success; we’re making between 4000 and 6000 per month. Typically, each van will have two or three hook-locks, one on the rear door and two on the side door. We’re preparing more fixtures so that we can introduce the machining of other parts in-house. Currently we’re only using 50% of the XYZ 750 TMC’s capacity, so we have plenty of machining time available for different parts. Furthermore, with the machine’s swarf conveyor, we’re able to recover more money from recycling the swarf while at the same time maintaining a clean machine and clean coolant.”

Van Guard chose the XYZ 750 TMC as Leigh Andrews had experience of the machines at a previous company.

“Although we’re new to CNC machining, the graphics and ease of use of ProtoTRAK made the crossover from manual to CNC machining easy,” he concludes.

For further information www.xyzmachinetools.com

Automated mill-turn cell halves cutting cycles




A British designer and manufacturer of bedpan macerators for healthcare institutions and sewage treatment systems for municipal water companies, Haigh Engineering, has upgraded the capacity on its shop floor in Ross-on-Wye with the installation of a five-axis Hermle C 42 UMT prismatic machining cell featuring turning capability.

Included are a multi-level tool magazine for holding 50 tools in addition to the standard 42 tools, making a total of 92, and a six-pallet storage system served by a three-axis HS Flex Heavy robot for automatically transferring pallets with a maximum capacity of 1200kg into the working area and returning them after component machining. Kingsbury, Hermle’s sole UK agent, delivered the cell in September 2022.

Haigh Engineering’s production manager Neil Phillips says: “As well as allowing for future capacity increase and improved reliability, the Hermle C 42 enabled us to take two older, less efficient machining centres off-line.”Overall, current metal cutting time is today about half of that provided by the older mills (with the equivalent machining cycles).

A majority of throughput at Haigh involves the machining of castings, mainly iron but also stainless steel and aluminium, ranging in size from 400 mm high by 600 mm square, down to 150 mm diameter by 150 mm long. Some weigh as much as 250 kg. While Haigh currently attends the machine full time, as the setters optimise usage, the intention is to set up multiple parts on the six pallets and run the system lights-out. Some unattended machining already takes place at the end of each day shift by loading a raw casting that requires 60 minutes or more of metal cutting time, allowing production to continue past normal working hours.
For further information www.kingsburyuk.com

Mazak releases new CNC machining centres




Now available from Mazak is the company’s new HCN-4000 NEO and HCN-5000 NEO horizontal machining centres and its VariAxis i-700 NEO five-axis vertical machining centre. The new NEO models achieve enhanced precision, boasting three times better than ISO positioning accuracy. Additionally, continuous machining accuracy sees stabilisation thanks to the new ‘Ai Thermal Shield’ function, which uses advanced algorithms to determine compensation according to fluctuating temperature. The result?Improved concentricity for machining operations such as end-to-end boring.

As part of Mazak’s Go Green environmental initiative to achieve a 50% reduction in its carbon footprint by 2030, the new NEO series represents the most environmentally friendly to date. Mazak has committed to making all machines manufactured in 2030 at least four times more efficient than machines manufactured in 2010. To create a more sustainable future and reduce consumption costs for manufacturers, the latest NEO series incorporates a raft of technology enhancements to deliver a 30% reduction in energy consumption for the VariAxis i-700 NEO and 24% for the HCN-4000/5000 NEO.

Environmental performance sees further gains via the Energy Saver Dashboard, with a graphic display of power and CO2 consumption for users to identify trends via a visual indicator.In addition, a Mazak Smooth Coolant system automatically optimises coolant volume discharge to drive additional energy savings. The Smooth Coolant system also incorporates a sludge removal performance system that keeps the coolant sump clean and prolongs the service life of cutting fluids.

If required, Mazak can pair the machines with an integrated high-rise PalleTech system featuring the latest PMC NEO software. With a new graphical user interface offering tutorial-style data entry and interactive set-up guidance, PMC NEO includes advanced system monitoring, resource management and ERP integration capability.
For further information www.mazakeu.co.uk