In the field of machine tools the considerable progress which has taken place in the last two decades, has been due to a large extent to the co-opera tion between teaching, research and industry. The paper describes how this co-operation, extending far beyond national boundaries, has influenced design fundamentals as well as design practice for metal cutting machine tools, and how this has contributed to the develop ment of machines which show better quantitative and qualitative perfor mance with higher technical and economic efficiency. Resume Le progres dans Ie domaine des machines outils, qu'on a observe depuis vingt ans est dft a la collaboration de l'enseignement, de la recherche et de l'industrie. Dans cette communication on montre que cette collaboration, qui s'etend a travers les frontieres nationales, a influence les principes de dessin et l'exe cution des machines outils. Elle a produit des machines de meilleure qualite et productivite avec un haut rendement economique et technique. Literatur [1] Nicolson, J. T.: Report on Experiments with Rapid Cutting Steel Tools, The Man chester Association of Engineers and the Manchester Municipal School of Technology, Manchester 1903. [2] Schlesinger, G.: Die Werkzeugmaschinen, Julius Springer, Berlin 1936. [3] Whitworth, J.: Address to the Institution of Mechanical Engineers, Glasgow 1956. Mommsen, Th.: Offener Brief an Professor Lujo Brentano, Miinchener Neueste Nach [4] richten, Nr. 530, 15. November 1901. [5] Ashby, Sir E.: Technology and the Academics, MacMillan, London 1959. Schlesinger, G.: Priifbuch fUr Werkzeugmaschinen, G. W. den Boer, Middelburg 1962.
