Prof. Dr.-Ing. Dr.-Ing. E.h. Dr. h.c. Dr. h.c. Fritz Klocke

Prof. Dr.-Ing. Dr.-Ing. E.h. Dr. h.c. Dr. h.c. Fritz Klocke began his distinguished career (1970-1973) as an apprenticed toolmaker while at the same time pursuing his production engineering studies at Lemgo/Lippe Polytechnic, and later (1973-1976) at Technical University Berlin. He then (1977-1981) went on to serve as Assistant at the Institute for Machine Tools and Production Engineering, Technical University Berlin. Starting in 1981, Klocke achieved or received the following academic credentials and awards: Chief Engineer; (1982) Doctorate in engineering; (1984-1994) employed at Ernst Winter & Sohn GmbH & Co., Norderstedt; (1984) Head of Process Monitoring; (1985) Technical Director, Mechanical Engineering Department; (1985) Awarded Otto Kienzle Medal by the Universities Production Engineering Group; (1995) Director of the Chair of Manufacturing Technology at the Institute for Machine Tools and Production Engineering (WZL) of the RWTH Aachen, and director of the Fraunhofer Institute for Production Technology, Aachen; (2001-2002) Dean of the Faculty for Mechanical Engineering; (2006) Honorary Ph.D. by the University of Hannover; (2007-2008) President of the International Academy for Production Engineering (CIRP); (2009) Honorary Ph.D. by the University of Thessaloniki; (2010) Honorary Ph.D. by the Keio University; Award of Fraunhofer Medal; (2012) Fellow of the Society of Manufacturing Engineers (SME); (2014) Eli Whitney Productivity Award (SME); and (2014) hobbing Fellow of RWTH Aachen University.  (Bio last updated 2018-02-05 Contact Randy Stott, Managing Editor, with changes.)

Articles by Fritz Klocke

  • Analysis of the Influence of the Working Angles on the Tool Wear in Gear Hobbing (January/February 2018)
    A calculation method is developed to estimate tool wear on hobs.
  • Performance of Gears Manufactured by 5-Axis Milling (March/April 2017)
    Free form milling of gears becomes more and more important as a flexible machining process for gears. Reasons for that are high degrees of freedom as the usage of universal tool geometry and machine tools is possible. This allows flexible machining of various gear types and sizes with one manufacturing system. This paper deals with manufacturing, quality and performance of gears made by free form milling. The focus is set on specific process properties of the parts. The potential of free form milling is investigated in cutting tests of a common standard gear. The component properties are analyzed and flank load-carrying capacity of the gears is derived by running trials on back-to-back test benches. Hereby the characteristics of gears made by free form milling and capability in comparison with conventionally manufactured gears will be shown.
  • Process Model for Honing Larger Gears (November/December 2015)
    Hard finishing technology, e.g. — honing — is used to manufacture high-performance gears. Gear honing is primarily used to hard finish small- and medium-sized automotive gears. And yet trials have shown that gears with a module larger than mn = 4 mm can also be honed efficiently, but problems often occur due to unstable process design. In this paper a model to improve the process design is described.
  • Local Simulation of the Specific Material Removal Rate for Generating Gear Grinding (September/October 2015)
    Generating gear grinding is one of the most important finishing processes for small and medium-sized gears, its process design often determined by practical knowledge. Therefore a manufacturing simulation with the capability to calculate key values for the process — such as the specific material removal rate — is developed here. Indeed, this paper presents first results of a model for a local analysis of the value. Additionally, an empirical formula — based on a multiple regression model for a global value describing the process — is provided.
  • Quality and Surface of Gears Manufactured by Free-Form Milling with Standard Tools (January/February 2015)
    The recently available capability for the free-form milling of gears of various gear types and sizes — all within one manufacturing system — is becoming increasingly recognized as a flexible machining process for gears.