PTG HOLROYD MANUFACTURES LARGEST EVER SUPER ABRASIVE MACHINES FOR GLOBAL TECHNOLOGY LEADER.
Holroyd Precision Limited, part of the Precision Technologies Group, has developed and manufactured two more Edgetek SAM XL machines for a global technology leader in the power generation market. Holroyd secured the order for the two 5-axis super abrasive machines on the SAM XL’s ability to machine large nozzle guide vanes in hard gas turbine alloys, with substantial time savings compared to more traditional machining methods.
“This order - the largest we have ever secured for Edgetek machines - is a major vote of confidence in our super abrasive machining (SAM) technology,” commented Tony Bannan, Chief Operating Officer for Precision Technologies Group. “What global manufacturers are discovering with the SAM system is that costly machining processes can be cut dramatically, even if the material is difficult- to-machine nickel- based alloys, as used in aerospace applications, or the powdered metals used for timing gears and sprockets in car engines. In both cases extremely high metal removal rates, at wheel speeds of up to 130m/sec, will be accompanied by excellent surface finish and high dimensional accuracy.”
The SAM XL machines have the capability to machine components up to 3/4m3, at cutting speeds of up to 130m/sec using CBN wheels. Weighing around 22- tonnes each, they incorporate the latest structural materials and construction technologies to satisfy the requirements for high precision, extreme rigidity and enhanced vibration damping when machining hard materials such as aerospace alloys.
Providing the highest levels of flexibility in operation, the SAM XLs are full 5-axis machines, each equipped with multi-station auto tool changers, typically 20 stations for wheels and 20 for coolant halos. The design of the machine enables changing of the CBN wheels and coolant halos, simultaneously, in just 25 seconds chip-to-chip, maximising production up-time to the full.
As part of its full turnkey project management capability PTG Holroyd also supplies all tooling and ancillaries for the SAM XL machines “With our turnkey service we undertake to engineer our customer’s complete process on the machine,” said Tony Bannan. “Typically this could include integrating automatic loading facilities, measuring machines for SPC, washing machines for parts cleaning, coolers and filters, design fixtures, work benches - in fact anything that the customer requires.”
These particular SAM XL machines are employed in the manufacture of aerospace components, however the inherent flexibility of the Edgetek system provides unparalleled levels of precision and productivity in the manufacture of almost any type of parts. These include gears and sprockets, rotors and impellers, medical instruments, hand tools, air-foils, blades and vanes, actuation components, ducting supports, mechanical seals, and many, more. The machines also serve a broad spectrum of industry types, including power generation, automotive, aerospace, medicals, tools and general engineering. They can be tailored to suit specific applications and supplied as complete turnkey solutions as part of a manufacturing cell. A worldwide service network provides support for the machines, and they also benefit from manufacturer-developed preventive maintenance plans.
About Holroyd and the Precision Technologies Group
Holroyd is part of PTG (Precision Technologies Group). The Group is firmly at the forefront of high precision machine tool design, build and supply. Holroyd grinding and milling and Edgetek superabrasive grind-milling machines produce ultra-precision components in a diverse range of industries including aerospace, medical, mould tool & die, power generation and high end automotive, plus the world’s most accurate compressor rotors, gears and threads. The Group has developed some of the most sophisticated, bespoke software in the marketplace boasting a simple rapid set and intuitive user interface. This allows customers to operate more efficiently and effectively with faster turnaround between jobs.
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