Complex and demanding component geometries as well as new materials or material combinations represent a special challenge in parts production with regard to burr-free and rounded edges.In order to generate the precise and clean surfaces required for subsequent processes, combined processes such as the GEO injector blast process for superfinishing and ultrasonic cleaning are the first choice. In addition to the above criteria, the focus is on the requirements for a simple application and low operating costs.
Thanks to their compact design, their flexibility and, due to the reusability of the blasting abrasive, low consumption costs, mobile blast machines are an optimal solution for surface processing in the production of single parts and small batches.
For a perfect parts finish, aqueous cleaning procedures offer both for pre- and post-treatment as well as for preservation an outstanding solution.
By means of one or more compressed air-driven injector nozzle(s), a blasting agent is sucked from a reservoir, pre-accelerated by means of compressed air and feed into a jet nozzle system, consisting of one or more laval nozzles. In addition, a further increase in speed to up to 2 times the speed of sound can take place between the individual nozzles by means of compressed air.
The sucked abrasive is directed to the workpiece to be machined. At the same time the rebounding abrasive is sucked off at high speed. Here, the extracted air quantity is higher than the air supplied by compressed air, resulting in a virtually particle-free working space.
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