We begin at the raw material receiving area where bars of various chemistries are received. The stainless bars are machined to the required extrusion press diameter of 5.500", 6.850", 7.500", 8.080" or 9.000" by a Medart bar peeler, if required. The reason for machining the OD is to remove hot rolled imperfections, thus assuring a satisfactory surface finish after extrusion.

After the bar peeler, the material is sent to one of four saws to be cut to the required extrusion length. These short lengths are referred to as billets. Billets are cut to achieve the optimum finished length of product to minimize yield loss. Billets have a radius machined on the outside corner, to promote initial metal flow, and is cleaned of machining oil.

Heat numbers are stamped onto each individual billet to insure absolute heat number identity control. The billets are then moved to the entry hearth of a 10 ton per hour gas-fired rotary furnace. If the product being produced is a tubular product or a shape with a hole, then the billet is transferred to a 650 ton peircing press which puts a hole in the middle of the billet, however, product with a finished ID of 2.187" or less are drilled to the same size as the mandrel, thus bypassing the piercing press, as do the solid shapes.


Whether solid or tubular, the billet is brought to the final extrusion temperature by induction heaters. After final heating, the billet is coated with the glass both on the OD and in the case of tubulars, on the ID. The billet is then fed into the extrusion press. A hydraulic ram pushes the billet into the container, after which the main ram forces the material out of the container through a die to form the required shape. It takes approximately three seconds to change the billet into an extruded shape After extruding the shape, it will require finishing which includes straightening, de-twisting, cleaning by either shot blasting and/or pickling, cutting to length, inspecting, packaging and getting ready for shipment to the customer.
Our 500 ton stretch straightener is one of the largest in the industry. The 2500 ton extrusion press and large stretch straightener, allows Amerex to produce larger product section thicknesses and higher strength materials than most of our competitors. From start to finish, we have moved toward efficiency in production. Amerex's die design and die making capabilities permits Amerex to produce dies and extrude products within four to six weeks after the final tubular or shape design is approved by the customer, dependant upon production scheduling at the time of order. Amerex maintains an inventory of carbon and stainless grades of billets for quick response.

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