Hard machining of agricultural machines parts

Drlika R., Žarnovský J., Mikus R., Kova I., Korenko M., 2013. Hard machining of agricultural machines parts . Res. Agr. Eng., 59 (Special Issue): S42–S48. For the renovation and/or improvement of the surface properties of machine elements, hard facing is often used. Hard structures obtained in layers or by heat treatment achieve a hardness of up to 68 hardness (HRC) or even more. Th e grinding of these surfaces demands the use of processing fl uids and causes sometimes changes in the surface layers structure. Hard turning can replace grinding when certain requirements are fulfi lled, particularly tough machining