bend allowance

The length of flat sheet metal required to make a bend of a specific radius and angle.

bend back

To return unbent surfaces to their formed position to make a structured arrangement.

bend order table

A list of bend sequences that document the dimensioning and order for bend features in a design.

bend table

A bend table accounts for variations in materials and helps calculate the flat length needed to make a bend.

corner relief

A technique in which a circular section is removed from sheet metal to help meet the design intent by accounting for material stretch while modeling.

curved surface

A bent surface or wall.

cut solid

To remove solid sections of material from the sheet metal wall. The material is removed in a direction that is normal to the sheet metal wall.

deformation area

A section of sheet metal that helps to accurately stretch the material when you bend the sheet metal part.

develop

The length of flat sheet metal required to make a bend.

driving surface

A surface of a part that is used as a reference for all sheet metal calculations and constructions; the other surfaces are offset from this surface by a specified thickness.

edge rip

A technique in which sheet metal is cut or torn along the edges to help meet the design intent by accounting for material stretch while modeling.

extruded wall

A solid structure of sheet metal that extends from an edge into space.

flat state

A completely unbent instance of a sheet metal part.

form die

A device used for cutting out or stamping material, especially a part on a machine that punches shaped holes in, or cuts sheet metal.

form tool

A tool that is used as a cast or mold to impart its shape to a sheet metal part.

formed state

The intent model having definite shape or structure.

fully formed

Having attained a definite structure as intended.

mold line

Intersection of the flat wall extensions.

notch

A cut in the surface or edge of a sheet metal.

point relief

A point that divides an existing edge into two separate edges. These two edges can be separately bent.

regular bend

A feature that creates a bend on a flat section of a part. The bend must be straight, contain only one sketch entity and not cross other existing bends.

relief angle

An angle that is formed by a surface of a workpiece with respect to another surface of the workpiece and provides clearance for cutting operation without any deformation in the model.

relief point

A point from where a sheet metal wall is sheared or torn, especially along seams.

rip

To shear or tear sheet metal walls, especially along seams.

rip relief

A technique in which sheet metal is cut or tore along the walls, especially along the seams to help meet the design intent by accounting for material stretch while modeling.

roll bend

A feature that creates a bend specified by a sketched entity showing the location of the bend, a bend angle, and a radius. The bend angle can a value less than or greater than 90.

sawcut

A toothed cut.

sharp corner

A projecting part where two edges of sheet metal meet; this part is capable of cutting or piercing.

sharp edge

A thin sheet metal edge capable of cutting or piercing.

sheet metal

A metal formed into thin and flat pieces. It is one of the fundamental forms used in metalworking and can be cut and bent into a variety of shapes.

split edge

A feature that splits an edge into two.

stamped edge

Sheetmetal edges modified by cutting or embossing features on it.

stamping

Using a tool to cut or emboss sheet metal.

stretch relief

A technique in which sheet metal is stretched to help meet the design intent by accounting for material stretch while modeling.

transition surface

A surface which blends together two surfaces. For example an airplane wing and the plane's body.

twist wall

A spiraling or coiling section of sheet metal that extends from an edge into space.

unbend

To flatten a sheet metal feature.