Nowadays, the use of metal stamping and stretching parts is becoming more and more widespread, not only in industry but also in daily life, because its stretching process can produce various shapes, such as cylindrical, rectangular, stepped, spherical, and even other irregularly shaped thin-walled parts. Do you know the types of stretching processes for stamping parts? Below, the editor will introduce it to everyone

Types of metal stamping and stretching forming processing technology

1. Stretching processing: Using a pressure plate device, a part or all of the flat plate is pulled into the cavity of the concave mold by the punching force of the convex mold, forming it into a container with a bottom. The processing of the side walls of containers parallel to the stretching direction is a simple stretching process, while the stretching process of conical (or angular) descriptors, hemispherical descriptors, and parabolic surface containers also includes expansion processing.

2. Re stretching processing: For deep stretched products that cannot be completed by a single stretching process, the formed product needs to be stretched again to increase the depth of the forming container.

3. Reverse stretching processing: Transforming the previous processStretching partsPerforming reverse stretching to transform the inner side of the workpiece into the outer side and reduce its outer diameter.

4. Thinning and stretching processing: Use a punch to squeeze the formed container into a concave mold cavity slightly smaller than the outer diameter of the container, reducing the outer diameter of the container with a bottom and thinning the wall thickness. This not only eliminates wall thickness deviation but also makes the surface of the container smooth.

Precautions for processing metal stamping and stretching parts

1. The shape of metal stamping and stretching should be as simple and symmetrical as possible, and should be formed in one deep drawing as much as possible;

2. For parts that require multiple stretches, while ensuring the necessary surface quality, traces that can occur during the stretching process should be allowed to exist on both the inner and outer surfaces;

3. On the premise of ensuring installation requirements,Stretching partsThe side wall should have a certain slope;

4. The spacing from the hole edge on the bottom or flange of the stretching part to the side wall should be appropriate;

5. The bottom and wall of the stretching part, the flange and wall, and the corner radius of the rectangular part should be appropriate;

6. The scale marking of metal stamping and stretching parts cannot indicate the internal and external dimensions together.

The above is the introduction of the processing types of metal stamping and stretching parts by the editor, as well as the key points to pay attention to when processing metal stretching parts. Dongguan Bosi Hardware specializes in processing and producing metal stamping and stretching parts. Welcome to inquire and quote.