Haas lathe boosts stopping power

EBC brakes has been manufacturing high-performance braking components at its Northampton headquarters for nearly 40 years. In addition to the brakes used in various racing classes, the company produces a comprehensive range for road cars, motorbikes and bicycles, both as a standard series built to OEM specifications, and oversized brakes to increase performance.

Central to EBC Brakes’ production are its Haas machines. Machine shop manager Vince Goosey says: “We chose Haas because we love the fact the machines are built in the US. As a company that is built around manufacturing in the UK and US, we want to select machine suppliers that align with our company’s ethos. Investing in Haas – who were selected over a number of competitors – has allowed us to take full control of our manufacturing process by machining all components in-house.”
The Haas DS-30 SSY dual-spindle lathe is used to machine the hubs of two-piece discs for the car side of the business, allowing turning of both sides and the drilling of mounting holes. The two-piece disc, a steel rotor with an aluminium hub, is used predominantly to save weight and improve brake disc performance at the extreme temperatures seen on the track or during fast road driving.
To solve the issue of the rotor fluctuating in size as it heats or cools, EBC uses an SD (square drive) system, allowing the rotor to slide against the hub as it expands or contracts and therefore avoid warping.
For further information www.haas.co.uk

Tornos delivers 200th MultiSwiss

The rise of the Berger Company has seen it become one of the world’s largest enterprises in the field of high-precision turning for the automotive industry, a business built with Tornos turning centres. Berger is constantly investing in state-of-the-art technology to produce turned parts with maximum quality at reasonable cost. Against this backdrop, only a few months after its market launch, the 200th MultiSwiss was delivered to the Berger plant in Ummendorf, Germany.
Berger recently pitched to a leading auto OEM for the global supply of a key component on an advanced direct fuel injection system. The volume amounted to 16 million parts. Herbert Maurer, director of corporate sales, recalls that the requirements were, and still are, fierce. For instance, as the part is installed directly in the combustion chamber, it is made of high-strength material, while the complex geometries have to be machined to a tolerance not exceeding 2 µm.
In the run-up, Berger considered Tornos and other competitive machines to find the appropriate manufacturing strategy. However, the new MultiSwiss soon turned out to be the best option.

“At the moment, it is simply the most precise lathe and, it seemed to be the most appropriate machine to achieve stable processes,” says Maurer.
Instead of experimenting on a sole machine, Berger purchased 10 MultiSwiss machines and has optimised the processes from the very beginning with series production in mind. All 10 machines are now running 24/7.
For further information www.tornos.com

Lathe takes over production of prismatic parts

Looking at the cuboid aluminium components produced for medical diagnostic equipment by subcontractor AES Precision Engineering, one would think they were milled, drilled and tapped on a machining centre rather than a lathe; indeed they used to be, from sawn billet in two separate operations on a pair of three-axis vertical-spindle machines in a total cycle time of 12 minutes.

However, since April this year, they have been machined complete from round bar in one operation on an Italian-built Biglia B565-YS 6-axis turn-mill centre supplied by UK agent Whitehouse Machine Tools. Program run time has more than halved to 5.5 minutes, accuracy is improved and there is no handling between machines or work-in-progress on the shop floor, significantly reducing the cost of production. Only two turning tools can be found in the machine’s 12-station turret, one for facing the bar end and another for parting-off, the remainder are axially and radially driven tools.

Mark Wilson, director of the family-run subcontracting firm, says: “We asked four potential suppliers to offer a turnkey package based on production of the aluminium medical part. Whitehouse demonstrated the best process in terms of quality, capability and cost on a Biglia lathe at its Kenilworth technical centre.”
Production engineer Trevor Orman adds: “The quality of the Italian lathe is high for this class of machine, costing under £200,000 with tooling. Although tolerances on the medical part are fairly open at 0.1 mm, the Biglia repeats to within microns, which means we no longer have to chase tolerance all day as the temperature varies on the shop floor.
“The machine’s accuracy will also be invaluable for the production of more tightly toleranced components, while its rigidity means that tool wear is noticeably lower than on our other lathes,” he concludes.
For further information www.wmtcnc.com

ProTurn lathe boosts gunsmithing service

With over 30 years of gunsmithing between them, along with 20 years’ international shooting experience, good friends and business acquaintances Stuart Anselm (Osprey Rifles), Pete Walker (Walker Custom Rifles) and Gary Costello (March Scopes) decided to pool their resources to capitalise on the niche market of bespoke gunsmithing by creating PGS Precision Engineering.

Much of the work that the three partners are involved with is one-off commissions, which would not justify investment in CNC machining capability. However, a recent contract for higher volume work made the possibility of upgrading from manual machining a feasible proposition.
“This was our first contract for large 50-calibre military rifles and, in addition to the chamber, we had to carry out turning and threading to fit the rifle action, as well as the suppressor [silencer],” says Anselm. “These increased volumes led us to look into CNC.”
PGS Precision Engineering opted to purchase an SLX 355 ProTurn lathe from XYZ Machine Tools, which scored highly due to its easy-to-use ProtoTrak control system; in particular the ‘TRAKing’ facility that allows the operator to manually run through the program using the hand-wheels before pressing cycle start.
“We are machining barrels much faster than we ever could using our manual lathes and with the reassurance of consistent accuracy and quality,” says Anselm. “Adding the automatic toolpost was a great decision as we can now complete the turning and threading cycles in under three minutes.
For further information www.xyzmachinetools.com

VTL sold into oil industry application

Mills CNC, the exclusive distributor of Doosan CNC machine tools in the UK and Ireland, has supplied a new, large-capacity Puma VTS 1620M vertical turning lathe to Fife-based National Oilwell Varco (NOV) Flexibles UK – a group within NOV Subsea Production Systems and a manufacturer of flexible pipe systems for the offshore oil and gas industry.

The machine was installed at the company’s recently upgraded and extended manufacturing facility in Glenrothes, and represents part of an ongoing multi-million pound investment made in plant, machinery and equipment. Doosan’s VTS 1620M is being used to machine a diverse range of NOV’s proprietary and patented, complex components, as well as repair (re-machine) worn parts that require refurbishment. These components, made from difficult-to-machine materials, many of which have undergone Inconel weld overlay, inlay cladding and heat treatment processes, include large-diameter end fittings and flange connectors – components that provide the required secure interfaces between flexible pipe systems and topside/subsea facilities such as FPSOs/FPUs, platforms, well-heads and subsea installations.
A box-guideway vertical turning lathe equipped with a 63” chuck, the VTS 1620M has 2000 mm maximum turning diameter capacity. In addition, the machine has a number of on-board technology features that make it suitable for the productive and precise machining of large-diameter components.
Alex Mitchell, Flexibles UK’s maintenance manager, says: “The VTS 1620M, like our other Doosan machines, is reliable, versatile and delivers impressive cutting performance. We continue to invest in Doosan machine tools because they are technically sound and are competitively priced. They are also backed by Mills CNC’s aftersales service and support which, from our experience, is difficult to beat.”
For further information www.millscnc.co.uk