The key points of hole turning process in stamping

Among the many stamping processes, the hole turning process is widely used in the manufacturing process of various products due to its advantages of high accuracy and good efficiency. In this article, we will discuss the key points of punching process in detail.

Hole turning refers to the process of pre-punching a hole in the material and then bending the edges of this hole outward or inward into the desired shape by using stamping machinery with specific tools. This process not only adds to the overall strength of the part, but also provides a way to create complex three-dimensional shapes that are essential to many designs.

A few key steps in the hole turning process are described next:

The first step is material preparation and positioning. Selecting the right material and ensuring that it is correctly placed on the stamping machine is fundamental to a successful result. The type and thickness of the material, as well as the pre-treatment (e.g. cleaning, lubrication) will have a direct impact on the quality of the turned holes.

The second step is the selection and setup of the die. The mold is the most important part of the hole turning process and determines the shape and size of the hole as well as the quality of the final product. The molds need to be precisely made according to the product design, including the size and shape of the punch and the mold holder need to be carefully designed and adjusted. In addition, the mounting position and angle of the die must be accurate to ensure consistent results for each press.

The third step is to perform the hole-turning operation. This usually consists of several stages: first, the formation of the pre-punched hole, followed by the bending of the hole edges using stamping machinery. During this process, it is critical to control the speed and force of the stamping; excessive force may cause the material to break or deform, while insufficient force may leave the turned hole incomplete or inaccurately shaped.

The fourth step is post-processing and inspection. After the hole-turning operation is completed, the part usually undergoes a series of post-processing procedures, such as deburring, cleaning, surface treatment, etc., to enhance its appearance and performance. Quality inspection is also an integral part of the process to ensure that each part meets design requirements and functional standards.

In addition to the key steps mentioned above, there are a number of factors worth noting that can affect the effectiveness of the hole turning process. For example, temperature control. Different materials react differently to temperature during the stamping process, and proper temperature control can reduce the risk of material deformation and improve product quality. In addition, the wear and tear of tools is also a problem that cannot be ignored. Regular inspection and maintenance of stamping equipment and tools is the key to ensure production continuity and product quality.