Requirements for dimensions of metal stamping parts

The main factors affecting the processability of stamping parts are: shape, size, precision and material of stamping parts.
1、 Dimensions of stamping parts
1. Requirements for blanking parts and punching parts
1) The shape of the material and the hole shape of the punching part should be simple and symmetrical. Regular shapes such as circle or rectangle shall be adopted as far as possible, and long slot or slender cantilever structure shall be avoided. Otherwise, the die
Die manufacturing problems. At the same time, the waste should be reduced to the minimum when the blanking parts are arranged.
2) The thickness of material must be considered in the structural dimension of blanking parts (such as hole diameter, hole distance, etc.).
3) Fillet arc connection is applied to the joint of straight line and curve on blanking part. In order to avoid the crack caused by stress concentration at the intersection angle.
2. Requirements for bending parts
1) The shape of bending parts should be symmetrical as far as possible, and the bending radius should not be less than the minimum allowable bending radius
2) The curved edge is too short to form, so the straight part H > 2 δ should be made. If h is required to be very short, it is necessary to set aside an appropriate margin to increase h, and then cut off the increase after bending
Added metal.
3) In order to avoid the deformation of the hole when bending the parts with holes.
3. Requirements for drawing parts
1) The shape of drawing parts should be simple and symmetrical, and the depth should not be too large. In order to make the drawing times at least and form easily.