Views: 0 Author: Site Editor Publish Time: 2019-08-29 Origin: Site
Sheet metal processing is a pivotal technology that sheet metal technicians need to grasp, and is also an important process for forming sheet metal fabrication parts. Sheet metal processing includes traditional cutting and blanking, blanking, bending and forming methods and process parameters, as well as various cold stamping die structures and process parameters, various equipment working principles and handling methods, as well as new stamping technology and new technology. The processing of metal parts of parts is called sheet metal processing. What are the forming methods for sheet metal fabrication parts? Next we will introduce these methods.
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Sheet metal processing is called sheet metal processing. Specifically, for example, the use of sheet metal to make chimneys, iron drums, fuel tank oil cans, ventilation ducts, elbow heads, round spaces, funnels, and the like. The main processes include shearing, bending and bending, bending, welding, riveting, etc., which require certain geometric knowledge. Sheet metal parts are thin-plate hardware, that is, parts that can be processed by means of stamping, bending, stretching, etc. A general definition is a part with constant thickness during processing. It corresponds to castings, forgings, machined parts and so on.
In addition to the cold stamping process commonly used in mechanical manufacturing, sheet metal processing has some other special methods, such as rubber hydroforming, stretch forming, and shot peening:
1. Rubber hydraulic forming
The rubber tire contained in the frame is filled with a high-pressure liquid to be expanded, thereby pushing the wool to form a part in accordance with the shape of the mold. The parts thus formed are highly accurate and have no indentations on the surface. The rubber tire is a universal flexible die, so many different shapes of mold tires can be placed on the sheet metal processing table. This method is less expensive, more productive, and can produce multiple parts at the same time after one cycle.
2. Bending and forming
The profile wool is first stretched in the length direction to the yield limit, and then the tensile force is maintained and the felt is bent in the profile of the stretched die. The pre-stretching can effectively change the stress distribution inside the wool during bending, thereby improving the forming accuracy of the part.
3. Shot peening
A plurality of steel shots having a diameter of 0.3 to 2.5 mm is ejected from the nozzle by means of compressed air (or a high speed impeller). The high-speed elastic stream hits one side surface of the wool material, so that the surface layer metal is enlarged due to the extrusion, and compressive stress is generated, so that the wool material is bent toward the side not hit by the projectile, and becomes a curved shape. The above three forming methods save the cost to the enterprise a lot, not only help to enhance the fatigue strength of the parts, but also have important significance for achieving high-efficiency production, which greatly promotes the productivity improvement of the sheet metal processing.
The processing steps of sheet metal fabrication parts are: pre-product testing, product processing trial production and product batch production. In the product processing and trial production steps, the customer should be in time to communicate with the customer, and after obtaining the corresponding processing evaluation, the product batch production. Therefore, if you need sheet metal fabrication parts, feel free to contact us and we will provide you with the best service. You can consult us if you have any questions, and you will get a professional answer.