Oml Sheet Metal

There are several terms unique to sheet metal.

Oml sheet metal.

R the bend radius. At oml metals ltd we specialise in sheet metal ductwork and steel fabrications. With our top of the range machinery we can cater for many diverse industries and make bespoke items which are hard to find we also make custom steel stainless and aluminum fabrications to our clients requirements. Item 168753 model 11786.

Inside mold line iml. Get to know them better to learn advance concept easily. Catia sheet metal tutorial for beginners including edge and bend. K tan a 2 kt the distance between the oml to the iml projected to the plane of one of the surfaces.

Here end the fabrication formulas for sheet metal up next we ll be seeing some of the terminologies in sheet metal that you ll need. Bend line shift bls the distance from the outside mold line to the original bend line on the flat pattern this is used to calculate the backstop location when working off of a flat pattern. The charts are calculated for roughly every 2 degrees of bend. Kt tan a 2 t or kt k t ba bend allowance or the length of the neutral axis.

There are sheet metal books available that have charts made up with the numbers calculated for each of the common material thickness and bend radius combinations. The iml is the intersection of the two inner surfaces of the bend. Oml outside mold line the intersection of two outside surfaces of a part extended. T the sheet metal thickness.

The oml is the intersection of the two outer surfaces of the bend. Outside mold line oml a line that runs parallel to the outside of the workpiece. This is always the inside radius not the outside. Coining one of the three types of bending for sheet metal where the punch penetrates into the sheet metal under high tonnage forming a consistent bend.

Inner mold line iml outer mold line oml center line of bend and neutral axis. A the angle of the bend in degrees.