Aluminum extrusion molding is one of the best and most effective plastic processing methods that applies strong pressure to the metal bank in the mold cavity. It forces the metal blank to produce the directional plastic deformation.
Moreover, it allows and extrudes from the die hole to get the right shape and effective mechanical properties of parts or semi-finished products. In this blog article, we’ll explain what the benefits, prices, and uses of aluminum extrusion are.
Classification of Aluminum Extrusion Molding
As per the directional flow of plastic metal change, the extrusion has the following categories:
- Positive Extrusion: The directional flow of metal is the same as compared to punch when making extrusion.
- Reverse Extrusion: In the making process, the direction of metal flow is opposite to the punch.
- Compound Extrusion: The flow direction of part of the blank is quite the same during the production process as of the punch. However, and the flow direction of the other part is opposite to that of the punch.
- Radial Extrusion: The directional flow of metal is 90 degrees to the punch motion.
Features of the Aluminum Extrusion Molding Process
In comparison to rolling forging, the extruded metal can achieve a more intense and consistent triaxial compression stress condition in the deformation area during the extrusion process, allowing the treated metal’s inherent plasticity to be fully used.
Extrusion molding has a great deal of flexibility and can create profiles and pipes with complex section shapes in addition to simple section products like bars, tubes, types, and lines.
All that is required to make goods with varying shapes, specifications, and variants on a single piece of equipment is to replace the extrusion tools, such as molds.
The short technological process, easy production, single extrusion, or larger overall structure parts with a larger area than hot die forging. Moreover, for molding and rolling, low equipment investment, low mold cost, and high economic efficiency are all benefits of the extrusion process for the mechanical properties of the metal.
Aluminum 6065 and 6005 is particularly well-suited for extrusion processing and has good extrusion properties. Different die structures and extrusion techniques can be used to process it.
Benefits of Extrusion Molding Aluminum
1. Increase aluminum’s ability to deform
In the deformation zone, aluminum is in a strong three-way compressive stress state.
Aluminum’s mechanical qualities and structure can be enhanced through extrusion molding. The mechanical qualities of extruded aluminum t-slot building goods’ longitudinal (extrusion direction) after quenching and aging are significantly better than those of comparable items made using alternative processing techniques.
When it comes to surface quality and dimensional precision, extrusion products outperform rolling, forging, and other processing techniques.
2. Large selection of goods:
Along the length direction of the phase change and gradual change of variable cross-section profiles. Extrusion is capable of producing not only simple profiles such as tubes, rods, and wires but also very complex section shapes and solid and hollow profiles.
Moreover, many products are in the shape of a cross section that are beyond the forming capabilities of other plastic processing methods. Extruded goods come in an extremely broad variety of sizes, from matchstick-sized precision profiles to extra-large pipes and profiles with a diameter of 500–1000 mm.
3. High degree of production flexibility:
Extremely flexible extrusion molding is possible. With just new molds, it may make goods with varying dimensions, features, and types using the same machinery. In addition, changing molds is an easy, practical, time-consuming, and effective process.
4. Easy to use and requires minimum equipment:
Extrusion molding offers advantages over other methods of producing pipes and profiles, like perforated rolling and groove rolling. In terms of a shorter technological process, fewer equipment needed, and lower cost.
Aluminum Extrusion Molding’s Drawbacks
Uneven product performance in terms of tissue. The surface layer, center, head, and tail of the extrusion products are not uniform due to the irregular metal flow that occurs during extrusion, which is particularly dangerous in the absence of lubricating forward extrusion.
The extrusion die has hard operating conditions that are prone to wear out. With strong three-way pressure, the blank is almost closed during extrusion.
During hot extrusion, the mold is frequently exposed to high temperatures and high friction, which has a significant impact on the mold’s strength and longevity.
Low effectiveness of output:
The traditional extrusion methods are unable to achieve continuous manufacturing, even with the development of the continuous extrusion method in recent years.
In general, the yield and geometric waste loss of extrusion production are low, and the extrusion speed is substantially lower than the rolling speed.
Applications for Extruded Aluminum:
There would be disagreements about terminology and whether to use tons, yards, or dollars when compiling a list of the top ten uses. Since we already quarrel enough, we’ve decided to go with an alphabetical list compiled from our knowledge.
Design and Building
Applications in this category include bleachers, building facades, railings, and balustrades. Aluminum sections that are lightweight and stiff are perfect for uses like canopies.
Where the structure needs to support a load yet not weigh a lot. (High stiffness leads to higher weight savings because you need less of it.) It is also utilized in walls and suspended ceilings. Many ladders are made of aluminum extrusion molding, yet it may be overkill to list it under construction.
Equipment For Displays
You’ve probably seen almost every booth made of extruded material at a trade event or exhibition. This is so that parts of an extruded segment can be engineered to interlock and facilitate quick and simple installation.
In addition to being lightweight, it can be polished in a variety of ways to give it a stylish and long-lasting appearance. Similarly, additional examples of temper of aluminum extrusion used for display include picture frames, display cabinets, and point-of-sale displays.
Price of the Aluminum Extrusion
Extrusion tools for aluminum can cost as little as £500, frequently £2000, and as much as £5000. The weight of the component and any additional secondary procedures, like machining and anodizing, have a major impact on part costs.
Conclusion:
Aluminum extrusion profile manufacturers have become increasingly common in the construction, transportation, aerospace, and electronic appliance industries. In recent years as a result of the drive for light weighting and miniaturization across a range of industries.
The percentage of aluminum extruded items has consequently grown quickly. For affordable and quality aluminum extrusion, HK Aluminum offers the best in marketing competitive price. For more information about aluminum extrusion molding explained, read this whole blog in detail.
FAQs:
Benefits of extrusion molding include lower manufacturing expenses since extra plastic may be gathered and recycled.
The following plastics are commonly used in extrusion and in Bausano’s extrusion lines: PE, PP, and PVC.
Extrusion Blow Molding (Molding) Machines produce milk or water bottles, shampoo bottles, automotive air ducts, jerry cans, and hollow industrial preform parts such as plastic drums or other plastic containers.
