Dugard machine is an ace in the hole

Sussex-based Sink Golf, a manufacturer golf putters, has invested in a Dugard 760 machining centre to produce its bespoke products.

Discussing how the Littlehampton business started, company founder Olly Longlands says: “Four years ago I was living in New Zealand and got into CNC manufacturing. I loved it so much that when I returned home to the UK, I bought a 2008 Dugard machine at auction – and I didn’t even know how to turn it on. I called Dugard and they were absolutely unbelievable.With their help and learning from YouTube videos, I managed to get my business up and running.”

Explaining the arrival of the latest Dugard 760 machining centre, Longlands adds: “When I decided to start running the business full-time it just went from strength to strength. I got so busy that I couldn’t keep up with orders using just one machine, so I bought a new one: it wasn’t going to be anything else other than Dugard.”

The company is machining two types of material, 303 stainless steel and mild steel. Now that Sink Golf has two machines, it is possible to perform the first operation on the new machine and undertake facing on the older machine.

“Some clubs have around four hours of machining time, although we also just produced a Damascus club [a process where multiple metals are joined in layers under extreme heat] that took more than 32 hours,” explains Longlands.“Although processing time varies, the rigidity of the new machine enables us to run the tools faster and harder while improving our surface finishes and tool life. This makes us 40% more productive and secondary manual finishing times are reduced.”

For further information www.dugard.com

Starrag HD can cutcycle times by 30%

Now available from Starrag Heckert, the STC1250 HD is the latest addition to the STC series for the machining of the most demanding aerospace structural parts, multi-blades and casings. Starrag says the STC1250 HD machining centre provides excellent static and dynamic properties, as well as a tried and tested rotating head, ensuring its suitability for the heavy-duty machining of titanium and Inconel parts in the aerospace and power generation industries.

Commenting on the machine, Lee Scott from Starrag says: “This is a five-axis machine with a B-axis table that holds the component and an Aaxis on the head; you can actually have an A and C-axis head as well. The new HD is predominantly a machine for optimised roughing and high surface generation finishing of exotic materials.”

The STC1250 HD machining centre offers a 1.25 x 1.25m pallet with a large work envelope for accommodating workpiece loads up to 5000kg. Complementing this capacity is X, Y and Z-axis travel of 2.2 x 1.5 x 2.1m, with a swing diameter of 2.2m.

Discussing reports that the new features of the STC1250 HD can reduce cycle times in titanium machining by more than 30%, Scott adds: “At Starrag’s Aerospace and Turbine Competence Centre in Rorschach, we saw a 63mm deep cut with a porcupine cutter where buckets of swarf continually fell into the base of the machine. Traditionally, what would have been three or four passes with a tool can now be done with a single pass. The machine may draw more power in that single pass, but overall, it has a significantly reduced cycle time when compared with the previous method of multiple passes.”

For further information www.starrag.com

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

Standfast Precision invests in a Vulcan VMC

Located in Moray, northeast Scotland, subcontractor Standfast Precision Engineering continually invests in machine tools to serve its clients in the offshore and whisky distillery sectors. The company’s latest investment is a Vulcan 710L VMC supplied by the Engineering Technology Group (ETG), a machine that featuresa 4thaxis Lehmann rotary unit.

Company owner and director Graham Wilson says: “We had a small bed three-axis machine with a rotary unit, but the compact work area was limited by the 4thaxis unit. We could only process very small parts or would have to transfer components to our larger bed machines, disrupting our workflow and creating capacity issues.

“We reviewed the market, looking for a machine with a Siemens CNC in a short lead time, as our workload was ramping up,” he continues.“ETG provided the solution with the Vulcan 710L VMC, and it’s been a tremendous asset.”

With the space in the Vulcan, Standfast Precision can fit the 4th axis unit and a tailstock to stabilise larger parts. Operators program parts at the machine: the Siemens CNC has a large touchscreen interface that improves programming speed by at least 30%. The company typically produces batches from 10 to 20 off, so it can program 10 to 20 jobs every week with programs taking from 15 minutes to a couple of hours.The saving in programming time is therefore significant.

“We needed a machine with a particular specification for our requirements that was going to deliver reliability and performance,” says Wilson.“The Vulcan machine has more capacity, more torque, a streamlined 4thaxis unit and it provides the space for us to machine relatively large parts in either a three-axis or four-axis set-up.”

For further information www.engtechgroup.com

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