Regresar

Preliminary characterization of the rivet shaving process

Abstract:

Assembly is one of the most important stages in the aeronautical sector. Among the different joining technologies involved during this process, the mechanical union by riveting is the most commonly used. At the same time there are some types of blind rivets which entail a problem with respect to aerodynamic and design. In particular, an excess shank protrudes over the rivet head and has to be removed by an operation known as rivet shaving. Conventionally, rivet shaving is done manually by an operator, with the consequent drawbacks that this entails in terms of repetitiveness, production times, functional performance, etc. Concerning that, nowadays there is a tendency to rivet shaving automation. To do it effectively, it is necessary a complete characterization of the process because of the absence of technical information about it. Therefore, in the present paper is going to be described a series of experiments in which have been analysed the tool wear mechanisms and the cutting forces obtained during a series of preliminary tests. Finally, thanks to the acquired knowledge, it is going to be possible to facilitate the design of robots and machines which will be able to complete the operation automatically and will facilitate their insertion within the industry.