Heating aluminum before bending can make it easier to manipulate and reduce the risk of cracking or fracturing. This is especially true for certain alloys of aluminum, such as 6061, which can be prone to cracking if bent at room temperature.

When aluminum is heated, it becomes more malleable and less prone to stress-induced failure during bending. The exact temperature at which to heat the aluminum will depend on factors such as the alloy composition, thickness of the material, and desired bend radius.

However, it’s important to exercise caution when heating aluminum, as excessive heat can lead to oxidation, warping, or other undesirable effects. It’s recommended to use a controlled heating method, such as a heat gun or oven, and to monitor the temperature closely to avoid overheating.

In summary, while heating aluminum before bending can offer benefits in terms of ease of manipulation and reduced risk of cracking, it’s essential to apply heat judiciously and carefully to avoid damaging the material.