Industrial gases specialist Messer Group will be showcasing a process that uses nitrogen to deburr zinc die-cast products next month, when it attends the EUROGUSS 2016 international trade fair for die casting.

In die casting, it is hardly avoidable to prevent the formation of thin burrs at the seams – burrs which must then be removed after the casting process.

The use of liquid nitrogen and a gentle blasting medium allows this to be done fully automatically and without causing any damage. Deburring zinc, aluminium, titanium and magnesium die castings is thus made easy.

This technology can dramatically reduce costs and reject rates – as Messer will be demonstrating at the event next month (January).

“The buyers of die castings, for instance in the car industry, have increasingly demanding requirements with regard to quality and precision,” said Thomas Böckler, Application Specialist at Messer. “On the other hand, the manufacturers themselves have an interest in both high-quality and more efficient processes. For example, in the case of electronic components, which may only cost a few cents, manual deburring is out of the question.”

“Here, our process offers the optimal solution. Moreover, the unit costs per kilogramme of die casting are approximately 95% lower compared with explosive deburring.”

Nitrogen deburr diagram

Source: Messer Group

Further still, Messer notes that it is easy to find out whether it is worth investing in a new cryogenic deburring facility. “First of all, we carry out a free deburring test with the customer’s products,” explained Böckler. “They can then gauge whether the result meets their expectations, and we can calculate whether contract deburring or the company’s own facility would offer the optimal solution.”

EUROGUSS 2016 will take place from 12th to 14th January. Messer will participate from the stand of MEWO GmbH & CO. KG.