Made sheet metal design, these you have to know!

Reminder: The point above

1. Basic principle:

a. Principles with uniform product

b. Easy to flattening principles

c. Appropriately select the thickness of sheet metal

e. Compliant with processing [123 2. Process requirements:

a. Due: common diet and precision cutting: Avoid narrow cantilever and groove A thickness is not less than 2T, [ 123]

b. Width is not less than 1.5T dread: ordinary punching and precision cut B. The outer shape of stamping parts is as minimum as possible Note: In the case where the function can be used, it is preferentially selected to select the B scheme c. The shape of the stamping member and the inner hole chamfer should avoid sharp corners Note: the sharp corners affect the life of the mold, rounded radius R\u003e \u003d 0.5T D. Hole Note: The impact of the circular hole, the punch strength, the punching diameter can not be too small [ 123]

E. Avoid the design:

Note: The sharp angle affects the life of the mold, rounded radius r\u003e \u003d 0.5T

f. Stamping The hole spacing of the pieces and the hole distance

g. The distance between the stamping member and the stretching member to the straight side

[ 123] h. Bend minimum radius

J. Bend Minimum hole margins

k. Bending sheet metal stamping and rounded corners should be maintained for a certain distance

L. Design of curved parts


Design of the cracking groove: the width is not less than 1.5T, the depth is not less than 2.0 T + R

m. Stamping Design of dead edges


The length of the dead edge is related to the thickness of the material, generally the smallest length of the dead side L\u003e \u003d 3.5T + R

[123 ] n. Craft hole design of stamping parts


When designing U-shaped bent, the two sides are preferably as long, if the structureNeed, do not allow both sides, in order to ensure the precise positioning in the mold, the process hole

o is designed


The design of the stretching part is simple as possible, the shape is asymmetric R1 \u003d (3 ~ 5) t R1min \u0026 gt; \u003d T R1max \u0026 lt; \u003d 8T


When the tensile parts have no flange tensile, the relationship between H and D h \u003d 0.4d

Click to download \u0026 gt; \u0026 gt; 510 sheet metal documentation [123

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