Various stages of aluminum extrusion process

 　　1. The mold is cast with the required cross-sectional shape.

　　2. Heat the aluminum billet in the furnace until it reaches 750-925 º F. At this point, aluminum becomes a soft solid.

　　3. Lubrication, known as smut, is applied to steel billets and plungers. Black ear disease is essential as it ensures that the billet and plunger do not stick together.

　　4. The plunger applies pressure to the blank and pushes it through the mold. During this process, liquid nitrogen is used to cool the mold. Cooling can prevent the formation of unwanted oxides and extend the length of the mold.

　　5. Extruded aluminum comes out of the mold and has the same shape as the mold opening. The extrusion is pulled onto the cooling table, where it is exposed to air, water, or a mixture of both (depending on the final mechanical requirements of the metal).

　　Next is the stretcher. This can correct any twisting that may occur and straighten the metal. Improved hardness and strength during the stretching process.

　　7. The extruded parts (possibly up to 50 meters) are fed into the saw conveyor and cut into the required profiles using a circular saw.

　　8. For certain aluminum alloys, artificial aging process is used to achieve optimal strength. Artificial ripening is achieved by precipitation heat treatment in a ripening furnace. The aging process ensures uniform precipitation of fine particles through aluminum to enhance strength, hardness, and elasticity.

　　9. Finally, the finished profile is completed or manufactured, ready to be shipped to the customer.