Bending sheet metal can be useful if it s used to build different shapes and different products.
Bending aluminum sheet with the grain.
Local sheet metal shop not an aircraft shop experienced cracking on folding up a simple bracket.
You must pay careful attention to grain or rolling direction when bending high strength metals especially when trying to achieve a small inside bend radius.
This is because sharper or tighter bends can be made across the grain without cracking.
To predict the material s behavior accurately during bending especially at the press brake you need to accommodate for the grain direction.
When bending high strength materials such as.
Bending the sheet metal longitudinally with the grain allows those grains to separate at the grain boundaries.
Bending is a delicate and demanding process most of the time and common fabricating processes require a degree of formability that make your choice of proper alloy critical.
Against the grain if you bend with the grain it will split the grains ask login.
In high purity forms aluminum is soft and ductile.
A metal s grain direction is usually only a factor when bending however.
Which aluminum alloy bends the best is a a common question customers want the answer to.
In this post we ll explain it to you.
The harder and thicker the metal the greater the minimum bend radius.
In particular we will take an in depth look at the theory making a.
Grain direction also plays into the amount of springback you can expect.
Understand different metals have different minimum bend radius to thickness ratios.
In this episode we are going to be looking at bending aluminum sheet metal for aircraft.
Minimum inside bend radius is also larger when bending with the grain longitudinal than across the grain transverse.
Grain direction bend line should go across the grain for the best bend having said that a typical sharp 90 bend on a piece of 1 8 aluminum sheet should be a minimum 1 8 inside radius use either 3003 or 5052 ideally the bend line should go across the grain.
In addition the grain direction needs to be considered when the bend radius is less than twice the thickness depending on the material and its hardness.
Has anybody heard of bending sheet stock 063 5052 h32 aluminum with grain direction on the diagonal.
