Engineering Sheet Metal Drawing Notes

However in order to have a measure for sake of comparison the limit drawing ratio ldr is taken as a measure of drawability.

Engineering sheet metal drawing notes. Engineering graphics is an effective way of communicating technical ideas and it is an essential tool in engineering design where most of the design process is graphically based. Cutting of sheet metal is accomplished by a shearing action between two sharp edges. After you insert the bend table in the drawing bend tags are added to the selected drawing view. Just before the punch contact work 2.

Unit iv sheet metal working economical considerations stamping forming and other cold working processes. The shearing action is illustrated in the figure. Fig shows the shearing of sheet metal between two cutting edges. In making the layout for this cleat the following points must be kept in mind.

Punch begins to push into work causing plastic deformation 3. Bend notes are associated with a drawing view. Engineering graphics is used in the design process for visualization communication and documentation. Blanking and piercing bending and forming drawing and its types cup drawing and tube drawing coining hot and cold spinning.

A bend table lists propertied of all bends in a flat pattern view of a sheet metal part. Engineering drawing basic sheet layout title block notes engineering working drawings basics. Formability of sheet metal is the ability of sheet metal to be drawn into cups or formed into the desired shapes without any defect. The proper relation of views in a drawing.

How to dimension a drawing. Drawing force power and number of stages defects in products. The sheet metal cleat the work of this problem will consist in laying out to full size the views and pattern for a galvanized sheet metal cleat.