Dr.-Ing. Andreas Mehr
Dr.-Ing. Andreas Mehr is responsible for Technology Development of Gear Grinding and Gear Shaping at Liebherr. He began his professional career at the Universität Karlsruhe (TH), Germany (1992-1999), where he received his degrees in Mechanical Engineering. Afterwards he worked for 5 years as a scientist in the manufacturing and materials technology group at the wbk Institute of Production Science of the Universität Karlsruhe (TH). The topic of his PhD thesis was "Hard Precision Machining of Gears with Crystalline Diamond Coated Tools by Gear Shaping." Since March 2004, Andreas Mehr has been working at Liebherr-Verzahntechnik GmbH in Kempten, Germany. In addition to his present leadership role in technology development, he has also been the head of the testing department since 2008. Dr. Mehr has previously presented at the AGMA Fall Technical Meeting, in the year 2013. (Bio last updated 2017-08-01 Contact Randy Stott, Managing Editor, with changes.)
Articles by Andreas Mehr
- Efficient Hard Finishing of Asymmetric Tooth Profiles and Topological Modifications by Generating Grinding (August 2017)
In order to improve load-carrying capacity and noise behavior, gears usually have profile and lead modifications. Furthermore, in gears where a specified tooth-flank load application direction (for drive and coast flanks) is a design enhancement, or even compulsory, the asymmetric tooth profile is a further solution. Nowadays, many gears need to be hard finished. Continuous generating grinding offers a very high process efficiency, but is this process able to grind all modifications, especially asymmetric gears? Yes, it is!