The Bending/Forming GCD Category includes the following GCD Types:
Bends
The Bends GCD Type includes one or more StraightBend GCDs, which represent only co-axial cylinders having the same radius. These GCDs are available for the Sheet Metal and Bar and Tube process groups.
The GCD details are as follows:
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Cost drivers |
Description |
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|---|---|---|
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GCD |
Name |
The name and number that identifies the GCD. This information is an identifier only and is not used in any cost calculation. |
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Properties |
Bend Angle (deg) |
The total angle that the bend passes through. Unbent, this angle equals 0. A hem equals 180 degrees. |
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Clock Angle (deg) |
Angle measured in a plane perpendicular to the tube/bar axis |
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Bend Direction |
Indicates the direction of the bend with respect to the main surface. Possible values include UP, DOWN, BOTH, EITHER, and UNKNOWN. |
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Bar Position, From (mm) |
Distance from the bar origin to the start of the bend GCD. |
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Bar Position, To (mm) |
Distance from the bar origin to the end of the bend GCD. |
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Length (mm) |
The length of the GCD. |
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Min Bend Radius (mm) |
The minimum radius of any bend surface along the chain measured from the bend interior. |
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Neutral Bend Radius |
Radius of bend measured to the neutral axis. |
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Bend Flap Size |
The maximum distance between two neighboring bends or a bend and a neighboring blank contour. |
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Is Straight |
Indicates whether the bend goes along a line axis. If true, the bend is straight. |
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Is Gusset |
Indicates whether the bend has a gusset (a special type of emboss) put across the bend as a strengthener. |
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Technique |
Requested |
The technique selected by you. If you have not selected a technique, this field is set to . |
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Selected |
The technique used by aPriori. If the requested technique cannot be used, aPriori select a technique that can be used. |
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Results |
Status |
The costing status of the GCD or technique. A green icon indicates that costing was successful; a yellow icon indicates that costing succeeded with a warning, and a red icon indicates that costing failed. |
Multiple Bends
The Multiple Bends GCD Type includes one or more Multibend GCDs with one or more StraightBend GCDs. Multibends GCDs represent the merging together of two or more bends. These GCDs are available for the Sheet Metal process group.
The GCD details are as follows:
|
Cost drivers |
Description |
|
|---|---|---|
|
GCD |
Name |
The name and number that identifies the GCD. This information is an identifier only and is not used in any cost calculation. |
|
Properties |
Bend Angle (deg) |
The total angle that the bend passes through. Unbent, this angle equals 0. A hem equals 180 degrees. |
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|
Bend Direction |
Indicates the direction of the bend with respect to the main surface. Possible values include UP, DOWN, BOTH, EITHER, UNKOWN. |
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Length (mm) |
The length of the GCD. |
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Min Bend Radius (mm) |
The minimum radius of any bend surface along the chain measured from the bend interior. |
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Bend Flap Size |
The maximum distance between two neighboring bends or a bend and a neighboring blank contour. |
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Technique |
Requested |
The technique selected by you. If you have not selected a technique, this field is set to auto select. |
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|
Selected |
The technique used by aPriori. If the requested technique cannot be used, aPriori select a technique that can be used. |
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Results |
Status |
The costing status of the GCD or technique. A green icon indicates that costing was successful, a yellow icon indicates that costing succeeded with a warning, and a red icon indicates that costing failed. |
For details about StraightBend GCDs, see Bends.
Forms
The Forms GCD Type includes one or more Form GCDs, each representing a deformation of metal other than bends. Usually, this is achieved by pressing a shaped punch into the material from one side. The far side can either deflect or not. Depending on their aspect ratios, forms are made by a variety of operations: coining/swaging when the metal thickness is significantly changed, embossing when the deformation depth is relatively shallow, drawing when the metal is significantly stretched, and deep drawing when the metal is extremely stretched. These GCDs are available for the Sheet Metal process group.
The GCD details are as follows:
|
Cost drivers |
Description |
|
|---|---|---|
|
GCD |
Name |
The name and number that identifies the GCD. This information is an identifier only and is not used in any cost calculation. |
|
Properties |
Area (mm2) |
The area of the GCD in a flattened state. |
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SER Length (mm) |
The length of the smallest enclosing rectangle. |
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SER Width (mm) |
The width of the smallest enclosing rectangle. |
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Sub Type |
The sub type of the current GCD type. Possibilities include TAB, BRIDGE, EMBOSS, and STAMP. |
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Depth Down (mm) |
The depth of the form. This is measured as the maximum distance that any point on the form’s main surface is displaced. It is always a positive number. |
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Depth Up (mm) |
The depth of the form. This is measured as the maximum distance that any point on the form’s main surface is displaced. It is always a positive number. |
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Perimeter (mm) |
The sum of lengths of all edges in the contour. |
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Technique |
Requested |
The technique selected by you. If you have not selected a technique, this field is set to auto select. |
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Selected |
The technique used by aPriori. If the requested technique cannot be used, aPriori a technique that can be used. |
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Results |
Status |
The costing status of the GCD or technique. A green icon indicates that costing was successful, a yellow icon indicates that costing succeeded with a warning, and a red icon indicates that costing failed. |
Lances
The Lance GCD Type includes one or more Lance GCDs, each representing a slit in the sheet metal requiring no material loss. Usually, a lance lies on a form. Lances are rarely, if ever, made by themselves. Normally, they occur next to a form to make design features such as louvers or bridges. Lancing and forming are usually done at a single die. These GCDs are available for the Sheet Metal process group.
The GCD details are as follows:
|
Cost drivers |
Description |
|
|---|---|---|
|
GCD |
Name |
The name and number that identifies the GCD. This information is an identifier only and is not used in any cost calculation. |
|
Properties |
Length (mm) |
The length of the GCD. The length is measured in the flattened state. |
|
Technique |
Requested |
The technique selected by you. If you have not selected a technique, this field is set to auto select. |
|
|
Selected |
The technique used by aPriori. If the requested technique cannot be used, aPriori a technique that can be used. |
|
Results |
Status |
The costing status of the GCD or technique. A green icon indicates that costing was successful, a yellow icon indicates that costing succeeded with a warning, and a red icon indicates that costing failed. |
ShearForms
The ShearForms GCD Type includes one or more ShearForm GCDs, each with a Form GCD combined with one or more Lance GCDs. These GCDs are available for the Sheet Metal process group.
The GCD details are as follows:
|
Cost drivers |
Description |
|
|---|---|---|
|
GCD |
Name |
The name and number that identifies the GCD. This information is an identifier only and is not used in any cost calculation. |
|
Properties |
Area (mm2) |
The area of the GCD in a flattened state. |
|
|
SER Length (mm) |
The length of the smallest enclosing rectangle. |
|
|
SER Width (mm) |
The width of the smallest enclosing rectangle. |
|
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Sub Type |
The sub type of the current GCD type includes TAB, BRIDGE, EMBOSS, and STAMP. |
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Depth Down (mm) |
The depth of the form. This is measured as the maximum distance that any point on the form’s main surface is displaced. It is always a positive number. |
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Depth Up (mm) |
The depth of the form. This is measured as the maximum distance that any point on the form’s main surface is displaced. It is always a positive number. |
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Length (mm) |
The length of the GCD. For ShearForm, this is the combined length of all lances. |
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Perimeter (mm) |
The sum of lengths of all edges in the contour. |
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Technique
|
Requested |
The technique selected by you. If you have not selected a technique, this field is set to auto select. |
|
|
Selected |
The technique used by aPriori. If the requested technique cannot be used, aPriori a technique that can be used. |
|
Results |
Status |
The costing status of the GCD or technique. A green icon indicates that costing was successful, a yellow icon indicates that costing succeeded with a warning, and a red icon indicates that costing failed. |
Ends
The Ends GCD Type includes one or more End GCDs. These GCDs are available for the Bar and Tube process group. The GCD details are as follows:
|
Cost drivers |
Description |
|
|---|---|---|
|
GCD |
Name |
The name and number that identifies the GCD. This information is an identifier only and is not used in any cost calculation. |
|
Properties |
Area (mm2) |
The area of the GCD. |
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Bar Position (mm) |
Distance from the bar origin to the GCD location on the bar. |
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Is Planar? |
True if the GCD consists entirely of planes with convex edges. |
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Maximum Cut Angle (deg) |
Maximum angle between a plane in the GCD and the plane perpendicular to the stock axis. |
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Number of Planes |
The count of plane surfaces contained within a GCD. |
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Outer Perimeter (mm) |
Perimeter measured along the outside of the part. |
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Technique |
Requested |
The technique selected by you. If you have not selected a technique, this field is set to auto select. |