March-based Microns Precision Engineering provides a subcontract engineering solution to customers across the UK and Europe.

Founders James Campbell and Garry Mills met while working as machinists at another firm, but in 2008, with a recession looming, they began to visualise starting a company of their own. “We wanted more control,” states Campbell. “We didn’t start with much, but because of the economic downturn things were cheaper. We bought a second-hand Haas mill and started to build up a customer base.”
Microns Precision soon outgrew its original premises, and after expanding into two larger units, began looking to see how it could fill its newly acquired space.
Today, nearly a decade later, Microns has installed 10 Haas machines, the latest of which is a VF-2SS Super Speed mill. With customers in industries ranging from agricultural to motorsport, scientific to gas and oil, the VF-2SS needs to be adaptive. “If something can be machined; we have a customer who wants one,” explains Campbell. “Right now we’re making DTS nano-positioning equipment which is mounted to lasers and microscopes, so the parts have to be dead flat. The accuracy on the VF-2SS is incredible, and it’s undoubtedly the fastest machine we have; the tool changer is so speedy that our jobs are noticeably quicker, which makes the whole process more efficient.
“This is our second Haas with four-axis capability and we’ve found that gives us a flexibility we hadn’t previously seen,” he continues. “As the controls are the same on all of the machines, we can switch from one to another in no time.”
For further information www.haas.co.uk

Oxfordshire-based Renault Sport Formula One Team has taken delivery of a Mikron HPM 800U five-axis machining centre from GF Machining Solutions.

Since installation, the HPM 800U has been put to work machining a diverse range of parts, including a number of gearbox inserts made from titanium. Apart from some wire EDM profiling operations, which take up to 12 hours to complete, the inserts are five-axis machined entirely on the HPM 800U. Material removal rates are high (over 85% of the titanium is removed during roughing and finishing operations), and the inserts are machined to a high accuracy and require an excellent surface finish.
“Despite such demands, our HPM 800U machines have not been found wanting and are among the most accurate, dynamic and reliable machining centres we have in our facility,” says machine shop manager Raphael Willie.
“A few years ago we made a strategic decision to increase our five-axis milling capabilities and selected GF Machining Solutions as the technical partner to help us achieve our objectives,” he adds. “The partnership means that we are able to acquire the latest Mikron five-axis machines at highly competitive rates, and have direct access to GF Machining Solutions’ technical and applications expertise.
“As a consequence we are able to fully embrace the concept of one-hit and simultaneous five-axis machining, and to experience productivity gains, improved machine tool utilisation, increased component accuracies, and reduced set-up and part cycle times.”
For further information www.gfms.com/uk

Heller reports that the installation of two of its five-axis machining centres, one with turning capability, has transformed the efficiency and repeatability with which marine components are machined at an offshore equipment manufacturer and refurbishment centre in the UK.

Four alternative proposals from different suppliers were considered before opting for the Heller solution. One possibility was to install a five-axis machine fitted with a rotary table on a swivelling trunnion. The problem with this type of machine is that the Z-axis stroke is too limited to allow the drilling of deep holes in the top of the casting, unless an unduly large and costly machine had been purchased. Heller FP/CT 4000 machines offer machining capacity with up to 1000 mm in the Z axis.
Previously, the process for machining cast steel components was labour intensive, involving highly skilled machinists setting up each part 16 times on manual mills, drilling machines and lathes. Lead time from customer order to delivery was 24 weeks, partly because machining took a 40 hour man week, typically spread over a month.
Today, the whole process has been reduced from 24 to just six weeks, as the parts can now be milled and drilled in one hit on both Heller five-axis machining centres, and also turned in the case of the second machine. Within the family of six sizes of component, one variant, for example, now takes just nine hours to mill and drill, and requires a further one hour for turning operations.
For further information www.heller.biz