Aluminium extrusion die correction station for polishing correction and repairing table Aluminium extrusion die corrector station for polishing,correction and repairing table is mainly suitable for polishing and correction of aluminum extrusion dies.
Product Categories. Solar frame aluminum extrusion die 17 Dec Our products. Every die needs the appropriate tooling to help support it. With so much pressure coming from the extrusion press, strong tooling is needed.
The most commonly used tools are backers and bolsters. Extrusion die bottom left , backer middle , and bolster top right with an extrusion passing through them.
A backer sits directly behind the extrusion die and has the same diameter. But the opening in the backer is somewhat wider than that of the die. It is pinned or bolted to it. Its main function is to reduce die deformation and prevent fracturing, with so much pressure being applied to the die. The backer geometry will closely match the contour of the die to provide maximal support. A bolster sits behind the backer and is generally the same width as the die ring which is used to hold the whole tool stack in place.
It has a wider opening than the backer and is pinned or bolted to it. In some cases, a sub-bolster is used, which sits behind the bolster and provides additional support.
A bolster and sub-bolster can sometimes be shared between several dies that have the same geometry layout. Example of a complete tooling assembly. From bottom left to top right — Die ring, mandrel, cap, backer, bolster, sub-bolster.
This leads us to another important point — that the life of your die will partly be determined by how well you have designed your extrusion shape for manufacturability. To improve manufacturability, collaboration between the designer, tool shop, and extruder is key. An extrusion die receives thousands of tons of pressure from the extrusion ram.
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