Dimensioning Sheet Metal Drawings

My boss dimensions from outside the flange walls and thinks this is the.

Dimensioning sheet metal drawings.

In the aligned system all dimension figures are aligned with dimension lines so that they may be read from the bottom or right side of the sheet. 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. Dimension figures and notes are lettered horizontally and are read from the bottom of the sheet.

A list usually tabular and often on the drawing if not accompanying the drawing on a separate sheet listing the parts needed in an assembly including subparts standard parts and hardware. This is a common occurrence when manufacturers receive a sheet metal layout dimensioned in the flat pattern. These dimensions may seem helpful but after your manufacturer makes bend deductions based on their capabilities and other bending factors your dimensions will become unusable. There is no consistently enforced distinction between an l m a bom or a p l.

15 satisfactory style of lettering for sheet metal drawings. One needs to check that these factors are consistent with the tooling that will be used in manufacturing. Horizontal dimensions should be read from the bottom of the sheet and vertical dimensions from the right hand side of the sheet as in fig. See more ideas about sheet metal drawing sheet metal technical drawing.

Jun 8 2019 explore h g raghunandan s board sheet metal drawing on pinterest. When producing drawings of sheet metal components i dimension from inside the flange walls. 9 9 direction of dimension figures.