Aluminum foam and honeycomb aluminum are manufactured differently

Aluminum foam is a lightweight porous metal material manufactured by electrolysis. Specifically, it is coated with a layer of titanium or zirconium and other metals on the surface of the aluminum ingot, and then put it into the electrolysis tank, so that it reacts with the electrolyte to form bubbles on the surface, and after many times of electrochemical metallurgical process, porous aluminum is formed.
Honeycomb aluminum, on the other hand, is made through a production process similar to sandwich panels. By stacking two aluminum alloy sheets together with a plastic core layer at a certain spacing, an aluminum alloy sheet with many small hexagonal honeycomb structures is manufactured after being heated and pressed.

Differences in Material Performance between Aluminum Foam and Aluminum Honeycomb
In terms of material performance, aluminum foam and aluminum honeycomb also have significant differences.
Aluminum foam has lower density, better sound absorption, heat insulation, earthquake resistance, explosion-proof performance, and excellent corrosion resistance due to its porous material structure. However, because of its larger voids and rougher surface, it may have some leakage in certain applications.
Honeycomb aluminum, on the other hand, has the advantages of high strength, good rigidity, and high planar stability due to its small hexagonal honeycomb structure. At the same time, honeycomb aluminum can also be made into different thicknesses and sizes of aluminum panels according to different applications, with a wider range of applications.

Aluminum foam and honeycomb aluminum have different application fields.
Because of its sound absorption, heat insulation, seismic, explosion-proof performance, aluminum foam is often used in construction, aerospace, metallurgy, petrochemical and other fields of noise, heat insulation materials and device shells and other related products. Honeycomb aluminum, on the other hand, is commonly used in structural parts, packaging, sound insulation, heat insulation, filters and other fields in electronics, aviation, automotive and other fields.
In summary, although both aluminum foam and aluminum honeycomb are lightweight metal materials, their manufacturing process, material performance and applicable fields are different. In practical application, scientific selection should be made according to the needs of different occasions.