World novelty from AW: Cryogenic deburring without nitrogen

Cryogenic deburring, in which the burrs to be removed are embrittled by the addition of liquid nitrogen and irradiated with granules, has become established in the batch processing of components made of various materials and material combinations. A world first for cryogenic deburring down to minus 40 degrees, which works completely without the use of nitrogen, will be presented by AW Maschinen- & Anlagentechnik during DeburringExpo at booth 415. This innovation is based on the development of an innovative granulate conveying screw with an integrated heat exchanger unit.

In combination with a precisely controlled, component-specific program sequence, burrs on workpieces made of elastomers, fiber-reinforced plastics and die-cast parts made of non-ferrous metals can be removed reliably and efficiently. Since deburring is carried out down to minus 40 degrees without nitrogen, not only are the costs for the process gas eliminated, but also for its infrastructure such as tanks and lines. The reproducible deburring process thus becomes more economical and saves resources. If lower temperatures are required for the process, the new cold-temperature deburring significantly reduces liquid nitrogen consumption, as the basic cooling is provided by the machine.