CIEFFE operates an extensive range of CNC bar-fed lathes<\/strong> \u2013 both fixed-headstock<\/strong> and Swiss-type (sliding-headstock)<\/strong> \u2013 with bar capacity from 5 to 80 mm.<\/p> These are fully automated<\/strong> machines, ensuring efficiency, precision, great versatility and perfect process repeatability.<\/p> The benefits in terms of quality<\/strong>, optimised lead times<\/strong> and cost containment<\/strong> are unquestionable \u2013 even on high production volumes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t Hot forging<\/strong> is the ideal solution for producing high-strength components at competitive cost.<\/p> With tooling that is less expensive than cold forging, it allows small and medium batches<\/strong> to be produced while maintaining excellent productivity.<\/p> During hot deformation, the material’s fibres are bent and oriented along the part profile<\/strong>, delivering mechanical performance superior to turning: higher tensile strength, greater durability and reliability.<\/p> Hot forging also reduces raw material costs<\/strong>, especially when the material is expensive, hard to machine, or when the part shows significant differences in diameter<\/strong> (such as bolts with a head much larger than the shank).<\/p> The near-net-shape geometry minimises waste and optimises the entire process.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t CIEFFE carries out secondary turning operations:<\/p> The company operates fully automated CNC<\/strong> plants ensuring efficiency, precision, great versatility and perfect process repeatability.<\/p> It also operates hydraulic second-operation lathes for small material removals on cold-forged parts.<\/p> Groove turning, point turning, chamfering, and turning operations on the nut end or at the thread root: simple operations, without overly tight tolerances, which allow special parts to be produced from standard cold-forged components while keeping costs low.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t Thread rolling<\/strong> is a cold-forming process that produces the thread by compressing the material<\/strong>, with no chip removal. The fibres are not cut but compacted<\/strong>, ensuring mechanical and fatigue strength that is markedly higher than threads produced by turning.<\/p> Rolled threads offer:<\/p> The ideal solution for fasteners, structural components and safety-critical applications;<\/p> perfect for ensuring smoother and more consistent assembly, it also offers a significant advantage, especially with expensive or difficult-to-machine materials.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t Centreless grinding<\/strong> is a high-precision finishing process ideal for cylindrical components, ensuring tight tolerances, excellent surface finishes and maximum repeatability.<\/p> Infeed (plunge) centreless grinding<\/strong><\/p> In infeed grinding the workpiece does not advance<\/strong>: the grinding wheel moves directly into the area to be machined.<\/p> Through-feed centreless grinding<\/strong><\/p> In through-feed grinding the workpiece moves continuously<\/strong> between the wheels, thanks to the angle of the regulating wheel.<\/p> CIEFFE has made the informed<\/strong>, integrated<\/strong> and cross-functional<\/strong> management of quality across the entire production process<\/strong> one of the cornerstones of its operational strategy: every product is placed within a purpose-defined path and inspected at each stage, from arrival at the plant through to delivery to the customer.<\/p> The final quality control department stands out for the completeness of its procedures and its state-of-the-art equipment: optical scanning measuring machines<\/strong>, profile projectors (optical comparators)<\/strong> and surface profilometers<\/strong> are just some of the instruments that have allowed human intervention \u2013 and therefore the related margin for error \u2013 to be eliminated entirely.<\/p> \u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\tForging: superior performance, production flexibility and cost optimisation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
Second-operation turning<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
Thread rolling: superior strength and zero waste<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
Centreless grinding: precision, quality and productivity<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
Quality control<\/h2>\t\t\t\t<\/div>\n\t\t\t\t