The home of the UK's greatest sportscar
14/01/2009
Racing Green TVR have now qualified a plasma gas nitriding process for their reground TVR crankshafts. Gas nitriding is normally carried out on produce a hard wear resistant case, enhanced corrosion resistance and good fatigue performance. The process is performed on fully finished components, which in many instances require no additional operations prior to assembly. Crankshafts are treated after grinding and undergo an extensive cleaning process prior to the vacuum gas nitriding. Plasma nitriding (also known as glow discharge or Ion nitriding) is a low temperature, low distortion surface engineering process. A glow discharge plasma is used to transfer nitrogen to the surface of the components undergoing treatment. Operating at temperatures between 400°C and 750°C these plasma processes produce high surface hardnesses and hardened depths up to 0.8mm ideally suited to crankshafts. Racing Green TVR use plasma gas nitrided crankshafts in all their high specification engines with the exclusive FFF cylinder heads for the ultimate in TVR engines.