You must consider a number of factors when deciding on which aluminum best for bending, and which alloy you’ll go for. Bending Aluminum successfully requires that you consider the properties of the alloy you’re choosing against what you want to achieve. That way, you’ll be able to utilize well different alloy abilities to match your needs. Here are factors to consider when making the decision of best aluminum for bending.
- Thickness and bend radius
The thickness of an alloy in use has a lot of impact on its ability to bend. The thicker the alloy, the lesser bending abilities it has. Therefore, going for thinner alloys will increase its ability to bend more. While this is true most of the times, there are exemptions.
Bend radius is also an important consideration. When bending aluminum, the bend radius shouldn’t be too long or too short. A lot of balance and consideration must be applied.
Some factors that affect the bending radius include the bending force, alloy thickness, and working temperature. These are important details that must be looked into. Mind you different alloys react differently to these factors and there proper classification and matching must be applied.
If the working temperature is too high, certain alloys will withstand that but not all. At the end of the day you want to achieve a certain bend target. Using the right temperature for the right bend thickness and radius for the correct alloy will give you more desirable results.
This is a very important consideration. According to experts, Aluminum alloys strengthen and harden when bent. Therefore, the harder the metal, the lesser its likely to bend further. This is because of the lesser room to bend. Although other processes can be involved to change the situation.
- Elongation percentage
A question that you want to ask yourself is how much elongated do you want your metals to get to. When analyzing elongation properties, you must consider the yield and ultimate strength. This will help you to figure out which alloys can be elongated more. When the difference between yield and ultimate strength is bigger, you can be sure that the aluminum alloy will elongate more. Therefore, you must look out for aluminum alloys with bigger strength difference.
This is also interchangeably referred to as ductility. And it involves the alloys elongation and strength comparisons. Experts advice that one of these increases when the other decreases. The reverse is true.
- End use applications
When making aluminum products, some require lots of bending while others don’t require that. This will advise you on the right alloy to go for. For instance, a frame may require half bends. This allows you to go for very strong alloys with lower abilities to bend.
On the other hand, other products that may require bigger bends will force you to opt for less strong alloys. This will allow the metal to stretch more and accommodate more stress.
- Heat treating
Some alloys allow heat treatment while others don’t. Heat treatment also plays a significant role in the bending process. But not all alloys will allow this to happen. Therefore, you must consider this before purchasing an aluminum alloy.