The Journal of Industry and Technology

Industrial Analytical Instrumentation

Euro Technology

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Machine tools and general engineering

Houghton metalworking fluids gains
Pratt & Witney Aerospace approval

Houghton International, the global leader in metalworking fluids and services, has received approval from Pratt & Whitney for the use of Hocut® 4940 Metalworking Fluid in the production of its aircraft engines and military power units under the Pratt & Whitney reference PMC 9151.

Pratt & Whitney approved Hocut 4940 for contact with gas turbine engine parts made from a variety of aerospace alloys including aluminium, steel, stainless steel, nickel-based alloys, single-crystal nickel alloys, cobalt-based alloys, magnesium, titanium, and titanium based alloys. Hocut 4940 is a semi-synthetic advanced metalworking fluid designed for machining these tough alloys in the most complex metal removal operations, providing high lubricity without the use of chlorinated additives. It is low-foaming with high detergency, so it runs clean. It delivers high lubricity at low usage rates and provides high corrosion protection for both components and the machine tools.

"Hocut 4940 is truly a global formulation enabling aerospace companies to achieve a step-change in productivity while incorporating new environmental requirements," said Lee Bowditch, Houghton plc Sales Director. "It is especially valuable for aerospace companies with significant international operations because it conforms to all health and environmental regulations including TSCA, REACH, DSL, METI, and PRTR. This enables a single product to be supplied locally to global operations." In addition to being chlorine-free, Hocut 4940 does not contain formaldehyde releasers, boron, TEA, DCHA or any other secondary amines. This makes it one of the most environmentally responsible fluids available to the aerospace industry.

Image: Houghton Coolant Used in HPC Processes.

Hocut 4940 also provides performance advantages that support the Pratt & Whitney approval, including increased tool life, longer sump life, higher productivity, improved quality of surface finish, and reduced cycle time, all contributing to the lowest total cost of operation. For decades, Houghton has been a supplier of advanced fluid solutions for global aerospace manufacturers' most demanding metalworking operations.

Houghton International Inc. in profile

Houghton International is a global leader in delivering advanced metalworking fluids and services for the automotive, aerospace, metals, mining, machinery, offshore and beverage industries. Headquartered in Valley Forge, Pennsylvania, Houghton operates research, manufacturing and office locations in 33 countries around the world delivering solutions that increase productivity, reduce operating costs and improve product quality for our customers.

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