Dimension Sheet Metal To Inside Or Outside

Only the truly critical dimensions should be highlighted as such.

Dimension sheet metal to inside or outside.

Hem measurement forming hems is one of those aspects of sheet metal that is very operator dependent. My boss dimensions from outside the flange walls and thinks this is the. When producing drawings of sheet metal components i dimension from inside the flange walls. I think this is the better way because you can acquire your cutting length without a flat pattern by adding the inside lengths fold allowance.

When producing drawings of sheet metal components i dimension from inside the flange walls. I think this is the better way because you can acquire your cutting length without a flat pattern by adding the inside lengths fold allowance. Your manufacturer may not be able to match dimensions when creating the actual sheet metal part due to tooling and equipment limitations. The outside bend radius is equal to the inside bend radius plus the sheet thickness.

Since each metal fabricator has its own tooling bend factors and equipment to develop the flat blank it is better to fully dimension to formed views for that manufacturer. Speaking of sheet metal tool you can not control both the radius directly and more over sheet metal modelling assumes that thickness is uniform. This means that outer radius will be inner plus thickness. Neutral axis the location in the sheet that is neither stretched nor compressed and therefore remains at a constant length.

Die opening 0 551 0 21 calculates out to a 0 115 in. It is one of the main and basic forms of metal working. The greatest feature of sheet metal is that it s having ability to be formed and shaped by no of process. And also find you fold centers more easily.

My boss dimensions from outside the flange walls and thinks this is the. Sheet metal is the metal formed into thin and flat pieces which uses sheets of thickness less than 6 mm. Die opening 0 972 0 21 gives you a 0 204 in. More over with variable thickness you nay not get the flat pattern.

Critical dimensions sheet metal forming outside dimension should be used unless the inside dimension is critical. If you change the material you change the percentage. Subtract the osos from the edge to apex dimension called on the print and you ll find exactly what the edge to outside radius dimension should be.