Stamping parts can be produced and processed with a variety of problems, resulting in multiple problems and affecting their application. Using our years of experience, we want to make sure that everyone knows what details are important when producing and processing stamping parts in order to avoid problems.
The design of the stamping die cannot be changed after it has been manufactured.
Manufacturers of metal stamping parts depend heavily on stamping dies. Stamping dies are used to produce stamping products that need to be processed. As a stamping die is manufactured, the design cannot be changed at will. It must be processed in accordance with the drawings reviewed.
It is not possible to change the design structure or number of parts of the die at will. By trimming the clearance and changing the orientation mode of the original mold structure, however, it can make debugging easier. After Zui, it is possible to modify the external and internal dimensions of convex or concave mold parts without changing the dimensions themselves. It is possible to debug the spring-back angle of the bending die, the filet radius, and the drawing depth of the male and female dies of the drawing die so that the parts meet the drawing requirements.
Prior to qualified metal stamping, the design and structural design must be changed during the adjustment. In such situations, a design change scheme and the reasons for it need to be communicated to the mold design department. As soon as the scheme has been approved, it must be modified together, followed by a revised design drawing. The qualified stamping dies can be accurately used and manufactured during the next casting by changing the base drawing of the design drawing.
Precautions during the stamping of small holes
Due to the development of science and technology and society, the microhole process that was previously used has been gradually replaced by the metal stamping services. By making the blank firm and stable, fractures can be prevented, and the blank's stress state during punching can be adjusted to improve punch strength. When punching small holes in stamping parts using the standard method, the tiny punch is easy to break, so try improving the punch strength to prevent it from cracking or bending.
An extruded material is used to punch a hole plate, not shearing it. The punching process is not the same as shearing, but rather an extruding process. The thickness of punched waste is usually less than the thickness of raw material because a portion of the waste is compressed and squeezed into the surrounding area of the hole at the beginning of extrusion.
How should you use aluminum alloy as a mold?
The stamping process should be arranged as late as possible, provided that it does not affect the process in any way. For dies with many punch holes, one can be added, and the punching process can be arranged last. The hardness of aluminum is relatively soft, so molds can easily be blocked.
A gap of 10% of the material thickness should be reserved on both sides of the mold, the knife edge should be straight, and the taper should be between 0.8 and 1 degree when designing the mold gap. A PE film should be applied to aluminum raw material during bending in a stamping plant to prevent aluminum chips from forming, causing damage to the workpiece, such as indents and points. The cutting edges of aluminum alloy workpieces should be processed with slow wire cutting in order to avoid burrs and uneven blanking. PE film can help reduce the deterioration of the workpiece.
Design considerations for stamping parts for automotive applications
The metal stamping parts used in automotive manufacture are called automotive stamping parts. These include brackets, spring seats, spring brackets, end caps, seals, compression valve covers/valve sleeves, etc. There are some precautions to take when designing automobile stamping parts, including meeting the requirements of service performance, process performance, and economy. Read more about stamping parts manufacturer.
When designing automobile parts, stamping part manufacturers should use simple and reasonable structural shapes and reduce the number of processing surfaces and areas. In addition to meeting the technical requirements of product design, automobile stamping parts must meet the stamping process requirements of stamping parts processing plants as well as the cutting, electroplating, cleaning, and other processing requirements after stamping.
