|
1312 |
|
Tuesday, June 03, 2008, Room 05 12:10 PM Case Studies and Further Applications 1 Showing the broad variety of thermal spraying in different examples, special processes and also specialized materials apart from standard coatings offer new possibilities and also new markets |
|
Detonation flame sprayed diamond-bronze coatings for grinding applications |
|
Wolfgang Tillmann* / Institute of Materials Engineering, Germany Evelina Vogli / Institute of Materials Engineering, Germany Jan Nebel/ Institute of Materials Engineering, Germany |
|
Grinding applications for the machining of stone and concrete require composite tools where large diamonds are perfectly embedded into a metallic matrix. With the detonation flamespraying process it is possible to manufacture these superabrasive composites. Excellent embedment of the voluminous superabrasive particles into the matrix coating material can be realized in order to produce high quality composite layers for grinding applications of stone and concrete. In this paper different diamond sizes as well as different volume contents of diamond in matrix are compared. Especially, the influence of particle size on its implantation efficiency is investigated and the influence of process and substrate temperature is analyzed. The thermal sprayed grinding tools are evaluated regarding their morphology as well as their grinding abilities. Compared to sintered diamond-bronze samples the results of a adaptively designed grinding test for the machining of concrete are presented and analysed. |