SUBCONTRACTING NEWS

Sheffield Forgemasters to regain accreditation

Sheffield Forgemasters is positioned to expand into nuclear fabrication after passing a highly testing audit to regain coveted ASME status as a key supplier of heavy forgings and castings to the civil nuclear power market. Ian Nicholls, group technical director, says: “Sheffield Forgemasters has passed the ASME audit to qualify as a Materials Organisation with NPT status. The accreditation is a huge development with enhanced requirements and disciplines embracing all our processes, employees and selected sub-suppliers. The ASME code is the world’s most comprehensive series of guidelines for civil nuclear manufacture.”
For further information www.sheffieldforgemasters.com

Adams slides into three-axis machining

Although a predominantly sliding-head turning machine shop, Adams Engineering (Ilkeston) Ltd has just purchased a Dugard 1000XP three-axis machining centre. Initially founded in the 1950s and run as a single-cam auto machine shop for decades, the business has more recently been taken over by Scott Burrow. Since the takeover, the company moved to new and larger premises three years ago and continued its machine acquisition trail.

Discussing why Adams Engineering has invested in three-axis machining, Burrow says: “Our first venture into milling was down to one of our customers. They kept pressing us to do milling work, so eventually we took the plunge. With the first machine we bought, we were initially just drilling and tapping prismatic parts and putting steps in plates.”

As word got around that the company was undertaking milling work, more enquiries flowed in.

“Due to rising enquiries we bought a larger machine, the Dugard 1000XP three-axis machining centre,” explains Burrow.

The ISO9001-accredited company wanted a machine with a sizeable capacity and a robust platform, which is exactly what the Dugard 1000XP delivers. As standard, the machine has X, Y and Z-axis travel of 1050 x 540 x 560mm to accommodate large parts. It also offers a 27kW BT40 spindle motor, a cartridge belt drive spindle and pre-tensioned twin-nut ballscrews.

“We just thought, why not go big.Today, we are doing work that takes up almost all the entire bed.”

The Dugard 1000XP has X, Y and Z-axis rapid feed rates of 44, 44 and 25m/min, with a cutting feed rate of 20m/min credit to the Mitsubishi CNC control system. Positional accuracy is 0.01mm, while repeatability is ±0.003 mm.
For further information www.dugard.com

Toolmaker diversifies into five-axis machining

Located in the centre of Birmingham, press toolmaker Tooling 2000 began trading more than 50 years ago. Since 1996 it has focused mainly on the design, production and try-out of tools for the automotive industry, notably for Jaguar Land Rover, Nissan and Rolls-Royce/Bentley.

With a view to strengthening its position in the industry and breaking into the provision of subcontract machining services to other sectors, such as power generation and renewables, the company has invested £1.8m in the past two years in new plant and hiring extra people.

A significant proportion of the spend has gone on acquiring new machine tools from Hurco, including the toolmaker’s first two five-axis machining centres, VMX60SRTi and VMX42SRTi models.The SRTi configuration is rapidly becoming Hurco’s most popular five-axis model. The torque motor-driven, swivelling B-axis spindle head and 600 mm diameter Caxis set flush into a fixed machine table create a compact, high-capacity platform that can serve as a large-capacity three/four-axis machine whenever required.

Tooling 2000’s manufacturing director Brian Abbott says: “In recent yearswe’ve seen growing demand from customers for the supply of more complex components that require five-axis machines to produce them cost effectively.The technology was a step into the unknown for us, so the availability of support from the machine supplier was paramount. As an existing Hurco user, we were comfortable with sourcing our first five-axis machines from them, particularly in view of the user-friendly, twin-screen controls.”

Machine operator Dean Henning adds: “Hurco machines are best suited to our type of work because the conversational control with WinMax software is easy to use and we can program most jobs on the shop floor. Even on the 5-axis models we can use the Hurco control to program 3+2-axis cycles.For more complex work, the option of inputting a DXF file from CAD into the Hurco control and using the drawing as the basis for creating the part program is especially useful and fast.”
For further information www.hurco.co.uk

Addmore boosts tool life and cuts cycle time

Addmore Engineering, based in Bedford, is a CNC machining company that supplies high-precision parts to the automotive, medical, and oil and gas industries. What started from a barn in Watford is now a large operation which spans several buildings, employs 48 skilled machinists and runs 24 hours a day.

Specialising in highly precise and intricately machined parts, Addmore turned to Ceratizit over 20 years ago to help with its complex component and tooling needs. Regularly visited by an applications sales engineer and a technical sales engineer from Ceratizit, the two companies enjoy a strong working relationship that positively impacts business growth.

While manyCeratizit inserts are in use at Addmore, a recent switch made was to Ceratizit’s Pentron drill with the ambition of increasing tool life and saving money on tool replacement costs. The tool Addmore was using previously was the 2xD 46 mm diameter C900 from Ceratizit. Although successfully completing the job, the inserts were getting pick-up and sticking to chips.

Addmore saw immediate benefits from using Ceratizit’s 2xD 46mm KUB Pentron drill. Whereas the previous drill had an insert life of between 55-75 parts per edge, the Pentron drill increased this to 120+ parts per edge, delivering an improvement of well over 50%.

Shaun Thornton, technical manager for Ceratizit UK, says that this improvement is “down to Ceratizit’s SOGX 03 geometry and BK8430 coating in combination with the Pentron drill. This specialist coating minimises chip-sticking and increases swarf evacuation due to its optimised flutes.”

As well as the cost-saving benefits which come from the extended insert life of the Pentron drill, switching to this insert also meant that machine cycle time was reduced by 10%.
For further information www.ceratizit.com

Major casting award for William Cook

Sheffield-headquartered William Cook Holdings, a supplier of safety-critical steel components, beat off the challenge of the other finalists to secure the ‘Company of the Year’ title at the recent UK Cast Metals Industry Awards. William Cook impressed judges with landmark rail contract wins, support for the war effort in Ukraine and a £5m investment programme that reinforces its position in the nuclear power supply chain.The group also protected vital foundry skills when it saved 75 jobs by acquiring HI Quality Steel Castings of Chesterfield out of administration.

Organised by the Cast Metals Federation (CMF), there were also major accolades for Tamworth-based Foseco (Innovation) and Sylatech, which claimed the Component of the Year Award.The latter was for work in producing a prosthetic aluminium thumb for use by children.
For further information www.castmetalsfederation.com