Influence of the grain coating during grinding with bronze bonded diamond tools

• Applicant: Professor Dr.-Ing. Berend Denkena
• Subject Area: Metal-Cutting and Abrasive Manufacturing Engineering
• Term: since 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 510733981

Bronze bonded grinding tools are produced by powder metallurgic process chains. The usage of coated grinding grains leads to a diffusive interlayer influenced by various chemical reactions. Furthermore, a cohesive layer ca be built depending on the respective interlayer. Thereout enhancements of heat transfer between grain and bonding and a resulting lower thermal stress during the grinding process can be achieved. As well the wear can be reduced due to higher grain keeping forces reducing grain breakouts. The usage of coated grains and the adaption of the interlayer properties to the grinding process enables the development of load and task adjusted grinding tools. The Influence of the grain coating on the resulting interlayer properties and the operational behavior are addressed in this research project. Therefore, the processing and the operating performance of the grinding tools are investigated. The characterization of the interlayer properties as well as the resulting interlayer failure mechanisms are focused. Finally, the correltaions are used to connect the processing of the grinding tools with coated grains with the operational properties to create a purposefully contribution to grinding tool manufacturing.

• DFG Programme: Research Grants