Andritz received an order from Allegro, a subsidiary of Evraz and RailService established to produce train wheels in Russia, for a complete production line for train wheels. The production process includes several stages. Blanks produced by Evraz are heated to 2282°F (1250°C) in a rotary-hearth furnace, then descaled and pre-formed in a hydraulic press with 10,000 tons of press force. The blanks are then rolled in a wheel-rolling machine developed by Schuler and forged into a finished product in a crimping and piercing press with 5,000 tons of press force. This is followed by a geometric test in a laser measuring system and permanent marking in a marking press. Finally, the wheels undergo heat treatment, and the running surfaces are hardened.
Forge shops can increase productivity and reduce costs in hot-forging and heat-treatment processes using synthetic lubricants and/or protective coatings. Hard coatings cold-welded onto high-wear areas of dies or anti-oxidation coatings painted directly onto forging billets can help.
Protective coatings continue to play a major role in increasing productivity and reducing costs in hot forging and heat treatment. This paper presents details and successful case studies of three such protective coatings.
Sheffield Forgemasters will lead a consortium of partners in a research-and-development project to explore the industrialization of electron-beam welding (EBW) in civil nuclear assemblies, with the potential to integrate welding into the manufacturing process. The Sheffield, U.K., company will install an electron-beam welder capable of welding 3-meter-diameter cylinders under localized vacuum and without traditional welding preparation, offering narrower welds than traditional methods plus the ability to weld as part of the manufacturing process, prior to quality heat treatment. It will then manufacture a civil nuclear component to demonstrate a full-sized (4.3 meters high x 3 meters diameter) small modular reactor pressure vessel and also produce several grades of steel alloys suitable for civil fission and fusion nuclear applications within the project's research element.
Premier Forge Group, a portfolio company of Wynnchurch Capital, acquired California Amforge Corp. Located in Azusa, Calif., Amforge manufactures closed-die, upset and rolled-ring forgings for the aerospace, defense and oil-and-gas industries. The company supplies critical components for both fixed and rotary wing aircraft and engines in military and civil applications. Located in Portland, Ind., and Lebanon, Ky., Premier Forge provides high-value, complex forgings for OEMs in a range of markets. The company’s capabilities include comprehensive forging processes complemented by in-house design and engineering, product machining and heat-treating services.
OSR Inc., a manufacturer of automotive fasteners, plans to increase its manufacturing production in Columbus, Ind. The company, a joint venture between Japan’s Owari Precise Products Co. and Columbus-based Rightway Fasteners Inc., will invest $7 million to construct and equip a new 82,395-square-foot manufacturing facility. OSR plans to add up to 12 new positions and is hiring immediately for positions in heat treatment and IT. Production is scheduled to increase at the beginning of 2020. OSR, which currently has 29 employees, specializes in M4 to M9 cold-forged fasteners, primarily for Toyota.
High-temperature insulating wool (HTIW) products boast significant advantages compared to traditional refractory products on investment cost, operating expenses, reliability, overall efficiency and the fast availability of the equipment following relining or maintenance and repair work.
Check out the April 2021 issue of FORGE, featuring our cover story on the "Ovako's Vacuum Degassing Process Improves Forging-Steel Grades", "Back to the Future: Revisiting AM Predictions from 2012", "Viral Marketing during COVID-19", and much more.