See full version: Brushed Aluminium Angle Trim
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Wellste, a specialist exporter and manufacturer of brushed aluminum angle trim, has 30 well-experienced technicians. They can help you in the entire fabrications of aluminum angle trim. We bring you a one-stop brushed aluminum angle trim solution and other aluminum angle products suitable for particular applications.
A variety of brushed aluminum angle trim lengths, wall thicknesses, and sizes are obtainable in Wellste. We are 20 years in providing speedy, friendly, and helpful customer service to our dear clients. more
Wellste brushed aluminum angle trim is ideally suited for property maintenance, DIY, as well as commercial and domestic applications. You can also use them as wall corner edging trim. [links]
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We stock brushed aluminum angle trim in many standard mill finish, anodized finish, powder coat finish, and customize according to your specifications.
Most aluminum extrusion is of the 6000 series. As well as being highly formable this has good strength and corrosion resistance. Heat treatment makes the alloy harder to bend so it’s generally best done after forming the final shape.
Unlike bending metal sheet on a press brake, when bending extrusion the goal is to create curvature. To do this the extruded section is wrapped around a die. Some over bending is usually needed because the extrusion will exhibit a degree of spring back. The five most common methods of bending extrusion are: here
Hollow section extrusion poses another problem: with nothing to support it there’s a tendency for metal under compression to buckle inwards. This can be overcome, to an extent, by filling the hollow interior with something that resists the buckling, but it makes bending a lot more complicated. Alternatively, thicken up the walls, incorporate generous internal radii and if possible, add internal stiffeners. here
There are a lot of challenges in bending aluminum extrusion. Here we’ll explain why it’s not an easy thing to do and introduce the five methods of doing it. If you’re a designer who wants to know what radii we can achieve on various sections you’ll find some of what you need here but we recommend you contact us for a more in-depth discussion.
Ideally, part designers should know that when it comes to aluminum grades, 3003 and 5052 will bend, 6061 will not. This is generalizing, of course, as there are ways to form 6061. The aluminum series’ ability to bend tends to decrease as you move down the list of tempers, from annealed to T4 and T6. Bending these tempered alloys is not impossible, but it is very difficult and will most likely require large bend radii to avoid cracking on the outside of the bend. If you’re not careful, you can completely fracture the bend line.
In my 40-plus years in the trade I have bent quite a lot of 6061-T6 aluminum. I’ve avoided cracking by having a large radius relative to the material thickness. And I’ve sometimes performed a three-step bend—a 2-degree bend in front of the bend centerline, a 2-degree bend from behind the bend, and then an 86-degree bend in the center.
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Still, if you want to avoid cracking, abide by the minimum bend radius in 0.25-in.-thick 6061-T6, which is quite large (see Figure 3), and avoid bending acute angles. Say you get a print that says you need to bend a part to an external angle of 100 degrees—that’s an internal angle of just 80 degrees. When you are bending 0.25-in.-thick 6061-T6, cracking can occur when bending past an external angle of just 86 degrees. Chances are that you’ll never make it to 90 degrees, much less make it to an external angle of 100 degrees.
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Answer: 6061-T6 aluminum is tempered and notorious for not bending easily. From a bending perspective, it’s always best to bend these parts in an annealed state and then temper them to the correct condition. That’s the ideal, anyway, but the reality is that many parts arrive at the press brake in a less than ideal state. Alas, it’s the life of a press brake operator.
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