6061 Aluminum Extrusion

6061 Aluminum Extrusion

6061 Aluminum Material Extrusion Products Product Description and Process 6061 Aluminum Material Extrusion Products Production process: cold extrusion process Machining process: CNC machine, machining center, lathe, mill machine, drill machine, etc. Surface treatment process: anodic oxidation,...

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6061 Aluminum Material Extrusion Products

Product Description and Process

6061 Aluminum Material Extrusion Products

Production process: cold extrusion process

Machining process: CNC machine, machining center, lathe, mill machine, drill machine, etc.

Surface treatment process: anodic oxidation, Dacromet coating, paint coating, powder coating, electrophoretic coating etc.


Product Material and Uses

Normally produce with aluminum L1, L2, L3, L4, L5, Aluminum alloy LF21, LY11, LY12, LD10, Brass H62, H68, carbon steel Q195, Q215, Q235, Q255, 10, 15, 20, 25, 30, 35, 40, 45, low alloy steel 15Cr, 20Cr, 20MnB, 16Mn, 30CrMnTiA, 12CrNiTi, 35CrMnSi, stainless steel 1Cr13, 2Cr13, 1Cr18Ni9Ti, etc.

The extrusion products are widely used for auto-car parts, truck parts, train parts, vehicle components, aviation industry components, gear parts, spline parts, universal joint crossing shaft, other machinery components, etc.


Metal Extrusions Information

Metal extrusions are metals or alloys that are extruded into bars, rods, angles, channels, tees, or other profile shapes. Examples of the metals and alloys that can be extruded are aluminum, copper, magnesium, zinc, titanium, lead, tin, and steel.

Extrusion is a process used to create a shape of a fixed cross-sectional profile. Extrusion is done by squeezing metal in a closed cavity through a tool known as an extrusion die using either a mechanical or hydraulic press. Extrusion produces compressive and shear forces in the stock. No tensile is produced which makes high deformation possible without tearing the metal. The cavity in which the raw material is contained is lined with a wear resistant material. This can withstand the high radial loads that are created when the material is pushed through the die.


Types

There are various types of extrusion methods, but all can be classified as being done as either a cold process or hot process.

Cold extrusion is extrusion done at room temperature or slightly elevated temperatures. This process can be used for most materials, provided the tooling is robust enough to withstand the stresses created by extrusion. Examples of parts that are cold extruded are collapsible tubes, aluminum cans, cylinders, and gear blanks. The advantages of cold extrusion are higher strength due to cold working, closer tolerances, good surface finish, and the lack of oxidation.

Hot extrusion is done at fairly high temperatures, approximately 50 to 75 % of the melting point of the metal. The pressures can range from 35-700 MPa (5076 - 101,525 psi). Good lubrication is necessary to maintain die life due to temperature and pressure wear on the machinery. Oil and graphite work at lower temperatures, whereas at higher temperatures glass powder is used. The biggest disadvantage of this process is its cost for machinery and its upkeep. Typical parts produced by hot extrusion are trim parts used in automotive and construction applications, window frame members, railings, and aircraft structural parts.

Other specific extrusion processes include hydrostatic extrusion, which incorporates a pressurized liquid surrounding the workpiece to reduce force requirements, and impact extrusion, which uses a high velocity metal slug to force the workpiece into the die.


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