High productivity blasting of carbide inserts

A Guyson International product story
Edited by the Engineeringtalk editorial team Apr 3, 2003

A major French manufacturer of carbide and polycrystal inserts has dramatically improved its productivity by installing a Guyson Euroblast 8 SF Plus blast system.

A major French manufacturer of carbide and polycrystal inserts has dramatically improved its productivity by installing a Guyson Euroblast 8 SF Plus blast system, that comes complete with driven turntable and linear horizontal traverse gun arm.

This one machine replaces three manual blast cabinets with three separate operators and produces 150 pieces in about five minutes.

The carbide inserts are mounted in a frame and blasted by two type 900 guns equipped with boron carbide nozzles.

The process is to obtain a uniform surface roughness prior to brazing of a diamond or a crystalline boron nitride (CBN) insert on to the carbide insert and after brazing to remove the excess brazing material with aluminium oxide blast media.

A uniform surface finish desired for the components is made possible with the inclusion of a linear transducer that adjusts the table rotation speed as the horizontally traversing guns nears the table centre ensuring an even, repeatable blast coverage.

Excellent access to the rubber-lined cabinet is available via complete front opening doors and an additional side door, for safety these come complete with interlocks to prevent blasting when the doors are open.

The blast system is completed with an efficient C400 dust collector that aids operator visibility by filtering the dust-laden air using a pleated micronic paper cartridge filter that is cleaned automatically with a pulse of air.

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