The European PM industry began developing composite camshafts some 10 years ago. At that time a number of manufacturers were working on mounted camshafts for the automotive industry. These required a highly precise cam lobe, mounted on a tube. PM cams meet these requirements and offer constant quality over a large series coupled with an economic production process. The idea was to offer a weight advantage combined with a simple camshaft concept. A.F. Hortenhuber of Miba Sintermetall of Austria, describes his company's development of PM camshafts.