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Brass Extrusion

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BRASS EXTRUSION<br />

Frank Cartledge<br />

CERRO EXTRUDED METALS LTD


CERRO PRODUCTS<br />

CERRO EXTRUDED METALS LTD


The role of extrusion<br />

RECYCLED<br />

SCRAPS<br />

SCRAP<br />

MELTING<br />

BILLET<br />

CASTING<br />

BILLETS<br />

METAL<br />

ADDITIONS<br />

CERRO EXTRUDED METALS LTD<br />

COILS OR<br />

BARS<br />

EXTRUSION<br />

COLD<br />

DRAWING<br />

STRAIGHTEN<br />

DESPATCH<br />

METAL<br />

FABRICATORS


The extrusion process<br />

Container + Die + Temperature + Pressure<br />

pressure disc<br />

container<br />

CERRO EXTRUDED METALS LTD<br />

billet<br />

product


A 2000 tonne extrusion press<br />

CERRO EXTRUDED METALS LTD


What does extrusion offer ?<br />

• Near net shape.<br />

• Good dimensional consistency.<br />

• Flexibility/Fast change process.<br />

• Homogeneity.<br />

• Internal soundness<br />

CERRO EXTRUDED METALS LTD


The two basic extrusion modes<br />

Indirect <strong>Extrusion</strong> Direct <strong>Extrusion</strong><br />

CERRO EXTRUDED METALS LTD


The key to internal soundness<br />

CERRO EXTRUDED METALS LTD<br />

shell discard<br />

extruded product


Process controls give consistency<br />

• Billet temperature.<br />

• Container and tooling temperature.<br />

• <strong>Extrusion</strong> speed.<br />

• Die size and condition.<br />

• Die lubrication.<br />

• Take-up speed<br />

CERRO EXTRUDED METALS LTD


Cold drawing<br />

Extruded bar Drawn bar<br />

CERRO EXTRUDED METALS LTD<br />

Draw die


Product refinement by drawing<br />

• Improved dimensional control.<br />

• Improved surface finish.<br />

• Adjust mechanical properties.<br />

• Straighter bars.<br />

CERRO EXTRUDED METALS LTD


The cost effective solution<br />

• Re-cycled materials.<br />

• Massive metal deformation.<br />

• Near net shape.<br />

• Quality characteristics adjusted to<br />

suit the application.<br />

• Consistent quality and performance.<br />

CERRO EXTRUDED METALS LTD


Range of profiles<br />

CERRO EXTRUDED METALS LTD

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