Easy to form pure 1100 aluminum sheets and bars because 1100 aluminum is 99 pure it offers superior formability corrosion resistance and electrical conductivity.
Annealed aluminium sheet.
Both proper heat application and temperature measurement are important.
Any involved forming can lead to cracking or fatiguing the material but annealing can reduce these problems.
The main reason to anneal aluminum is to improve malleability.
Fairings and fillets in particular require such heavy working and such great changes in shape that frequent annealings are quite necessary.
In zone refined aluminum this reversion may take place at room temperature.
You can see that welding clamps were also used for tight short bends.
It s frequently fabricated into raceways decorative trim and other parts where strength and hardness are not required.
The sheet work is now nearing completion and the zippo top is taking shape.
Avoid machining aluminum in its annealed state it s really sticky and it doesn t cut cleanly any more.