The practical metal-worker's assistant : containing the arts of working all metals and alloys, forging of iron and steel, hardening and tempering, melting and mixing, casting and founding, works in sheet metal, the processes dependent on the ductility of the metals, soldering, and the most improved processes, and tools employed by metal-workers, with the application of the art of electro-metallurgy to manufacturing processes : collected from original sources, and from the works of Holtzapffel, Bergeron, Leupold, Plumier, Napier, and others ... (1851)
Byrne, Oliver · Philadelphia : H.C. Baird · leaf 66
APPLICATIONS OF HEADING TOOLS, ETC. 61 work of carriages, and other works. Such tools, like the pair rep-resented in Figs. 62 and 63, are called swage or collar tools; theysave labor in a most important degree, and are thus made. A solidmould, core or striker, exactly a copy of the work to be… … The top tool is first moulded to the general form in an appropriateaperture in the swage block, Fig. 61, it is faced with steel like ahammer, and the core, Fig. 64, is indented into it; the blows of thesledge-hammer not being given directly upon the core, but upon somehollow tool previously made;…
Metal-work · Electrometallurgy · Metallurgy
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