A method is used to manufacture a drawn tube having a hollow low interior for housing an axle shaft. The method includes the steps of placing a billet into a first die assembly and pressing the billet into the first die to producing a pre-formed billet. The method also includes the steps of moving the pre-formed billet from the first die assembly to a second die assembly and pressing the pre-formed billet into the second die assembly to produce an extruded tube. The method further includes the steps of moving the extruded tube from the second die assembly to a third die assembly and pressing the extruded tube into the third die assembly to further elongate the extruded tube and decrease the thickness of the wall of the extruded tube to of from about 3 to about 18 millimeters to produce the drawn tube having the yield strength of at least 750 MPa.

Processes by which bulk forms can be produced in a single continuous operation, as opposed to multi-stage deformation processes that involve a series of separate and discrete deformation operations or stages. Such processes generally entail deforming a solid body using a large-strain extrusion machining technique and deformation conditions that obtain a predetermined crystallographic texture in the continuous bulk form that differs from the crystallographic texture of the solid body.

A device for solid state joining of light metals like aluminum is described. The device utilizes the principle of continuous extrusion to add a string of filler metal into a groove separating the components to be joined, and shear deformation for surface oxide removal in the groove. The device comprises a rotating drive spindle (13) terminated in a drive spindle head (14). A groove with the shape of a circular arc constituting an extrusion chamber (16) is machined in the outer surface (15) of the drive spindle head (14), the extrusion chamber (16) being limited radially outwards by a stationary annular metal shoe (17) surrounding the drive spindle head (14), the extrusion chamber (16) being terminated by an integrated (fixed) or replaceable abutment member (18) for diverting aluminum from its circular movement in the extrusion chamber (16) through a die orifice (19).

A screw extruder for the continuous extrusion of materials with high viscosity, in particular metals such as aluminum and its alloys. The extruder includes an Archimedes screw (1) rotationally provided within a liner (2) of a screw housing (4) having an inlet (11) for the feeding of the material to be extruded, a compacting or extrusion chamber (5) and an extrusion die assembly with a die (6) which forms the shape of the extruded product (7). The required compaction takes place at the down-stream end of the screw towards the extrusion chamber (5) corresponding to up to 540 of the rotation of the screw, or up to 1.5 turns of the screw flight length. The solid plug of metal formed at the end of the screw and extrusion chamber (5) is restricted from rigid rotation to obtain the required compaction and extrusion pressure.

An apparatus, method and composition for long length tubing includes continuous production of long length seamless aluminum tubing suitable for use as coiled tubing in hydrocarbon wells. A 2XXX aluminum alloy may be used in combination with a continuous casting/extrusion apparatus using aluminum from a melt. Other metals may be used, as well as continuously cast rod from a casting wheel and belt or conform extruder, which is processed to form a hollow and then sized by drawing.

The present invention provides a mold method for surface treatment of aluminum component comprising: providing straightening and rounding the aluminum component; the scraping pretreatment; the oxidation prevention and lubrication of scraping; the precise scraping of the aluminum rod. The present invention enables on-line high precision shape finishing and surface cleaning of the aluminum component which satisfies the processing requirement of providing uniformity and consistent treatment by the subsequent extrusion processing as part of the production line in order to produce high quality aluminum, aluminum alloy, aluminum bimetallic and multi-metallic composite profiles and special profiles.

An extrusion method for forming a length of multimaterial extrudate includes providing a die; providing a container comprising a multimaterial feed material supply; effecting relative movement of the container towards the die so as to bring an axial surface of the die into contact with a rotating engagement surface of the supply of feed material; generating heat at the interface between the axial surface of the die and the rotating engagement surface of the multimaterial feed material supply so as to heat the at least two materials of the multimaterial feed material supply by the application of a contact pressure between the axial surface of the die and the rotating engagement surface of the feed material supply; pressing the heated multimaterial feed material supply through an orifice in the axial surface of the die so as to form a length of multimaterial extrudate in the extrusion channel.

An apparatus and method for continuous extrusion of materials with high viscosity, in particular materials containing metals such as aluminium, magnesium, titanium, zinc, copper, nickel and alloys thereof, the apparatus including an Archimedes screw rotationally provided within a liner of a screw housing provided with an feeding opening for feeding of the materials to be extruded, an extrusion zone and an extrusion die assembly with a die which forms the shape of the desired extruded product. The apparatus also having a preparation/mixing zone, further a feeding zone for material that communicates with the Feeding opening of the housing, a transport and compaction zone for the materials in the screw extruder, and a compacting and pressure generating zone for the materials in connection with said extrusion zone, where the required compaction and extrusion pressure and temperature is obtained.

The present disclosure discloses a production process for winding and weaving a decorative lamp based on a string-like metal strip, and a decorative lamp, and aims to provide a production process for winding and weaving a decorative lamp based on a string-like metal strip, achieving high structural stability and long service life. A key pint of the technical solution of the present disclosure is that the metal strip cooperates with a three-dimensional architecture or a planar architecture, so that there is a fixed direction provided for interlaced winding of the metal strip to form a corresponding shape based on the three-dimensional architecture or the planar architecture, thereby improving the overall stability.

After a light string is wound around the metal strips, an exposed structural arrangement can make the wound three-dimensional architecture or planar architecture more tridimensional. The present disclosure is applicable to the technical field of decorative lamps.