Edge Information
The edges of workpieces can, for example, after a machining gratig his or sharp. Or they do not have other desired geometries. For this reason can be found in technical drawings figures for the state of edges (inner and outer edges edges) make. These drawings are in ISO 13715 set.
Symbol for Edge Information - Technical Draw
If you have an outside edge that can either be gratig or burr-free. If an inner edge exists, it can be either a transition or removal as defined. The definition is made by the symbol for edge data (see picture below).
The symbol for the edge information in technical drawings will be complemented by a measure of the maximum value of the ridge, or the transition angiebt ablation. Before the measure is a sign that either the''+''- or'+/-' can be. The importance of the omens are in the table below.
|
sign
|
Importance to the outer edge
|
Importance for inner edge
|
|
+
|
grout
|
descent
|
|
-
|
grout free
|
removal
|
|
+/-
|
grouty or grout free
|
descent or removal
|
The following table values for shares edge information into categories to complete a guide for edge information in technical drawings to give.
|
Value Edge indication
[mm] |
Kategorie for outer edge
|
Kategorie for inner edge
|
|
+0,05 bis +2,5 or more
|
grouty
|
descent
|
|
to +0,05
|
Edge is sharp
|
Edge is sharp
|
|
to -0,05
|
Edge is sharp
|
Edge is sharp
|
|
-0,05 to -2,5 or more
|
grout free
|
removal
|
Edge icon in the technical drawing
