A novel forming technique to coforge bimetal components into complex geometries. (October 2020)

• Record Type: Journal Article
• Authors: Slater, Carl; Plata, Gorka; Sánchez, Andrea; Lozares, Jokin; Hurtado, Iñaki
• Is Part Of: Manufacturing letters. Volume 26(2020)
• Page Start: 21
• Page End: 24
• Publication Date: 2020-10
• Subjects: Near solidus forming -- Bimetal -- Coforging -- Diffusion bonding; Manufacturing industries -- Periodicals; Production engineering -- Periodicals; Manufacturing industries; Periodicals; 670
• DOI: 10.1016/j.mfglet.2020.09.006
• Languages: English
• ISSNs: 2213-8463

Abstract

Abstract: The novel Near Solidus Forming process has been used to coforge stainless steel 304 to encapsulate a core of 42CrMo4 steel in Stainless 304 in the form of a complex spindle. The forging was achieved with a force of 280 t, in a single strike, at a temperature of 1370 °C. The component successfully filled the die and a range of microstructural evaluations showed an inclusion/porosity free interface between the two steels with >3 µm of cross diffusion.