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Citation link: http://nbn-resolving.de/urn:nbn:de:gbv:46-00107442-10
00107442-1.pdf
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Other Titles: Dry Rotary Swaging
Authors: Herrmann, Marius  
Supervisor: Kuhfuß, Bernd 
1. Expert: Kuhfuß, Bernd 
2. Expert: Vollertsen, Frank  
Abstract: 
In this dissertation, the free-form forging process rotary swaging is investigated. Usually the established process is carried out under the use of a large amount of lubricants based on mineral oil. The lubricant fulfills important tasks for the process. The aim is the development of rotary swaging towards a dry process layout. To enable a dry process, it is necessary to substitute the functions of the lubricant; cooling of work piece and die, washing out of wear particles from the forming zone and process lubrication in general. The hypothesis of dry rotary swaging is to enable a dry process by means of coating and structuring of the dies. The structuring includes several size scales and the coating is constructed as a multi-layer system. This creates an optimized tribological condition in the different zones of the forging die. Finally, it is shown that such a tribologically adapted functionalized die enables dry rotary swaging of steel and aluminum workpieces.
Keywords: incremental forging, functionalized dies, massive forming, a-C:H coating, die structuring
Issue Date: 29-Mar-2019
Type: Dissertation
URN: urn:nbn:de:gbv:46-00107442-10
Institution: Universität Bremen 
Faculty: FB4 Produktionstechnik 
Appears in Collections:Dissertationen

  

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