Hot spinning, processing metal like kneading dough

Have you ever seen pottery craftsmen shape pottery? On the fast-rotating blanking machine, the pottery craftsman applies a little pressure on one side of the blank, and then gently pulls on the other side. The clay that was originally slumped into a ball seems to have life, and it is constantly changing shape with the hands of the craftsman. Spinning technology has similarities with pottery. It's just that one of the processed materials is mud and the other is metal. In spinning industrial production, the commonly used metal materials are aluminum and aluminum alloys, because these are easier to shape. What about materials that are not easy to shape? At this time, hot spinning is about to play.
1. What is hot spinning?
Hot spinning, as the name implies, refers to the process of adding high temperature to the spinning process. In the process of heating spinning, all materials are strictly required. Only high-strength hot-rolled steel, titanium alloys, high-temperature alloys and other materials that can withstand such high temperatures and can be melted and reshaped can be used for hot spinning. . Let's take high-strength hot-rolled steel as an example to take a look at the hot spinning process.
2. Hot-spinning process of high-strength hot-rolled steel
First, high-strength hot-rolled steel is made into disc-shaped, tube-shaped or cup-shaped blanks, and they are fixed on the die of the spinning machine. This is almost identical to the process of collecting clay in pottery.
During the heat spinning process, the blank will rotate with the spindle of the machine. The blank is then pressed by two rollers, which replace the hands of the potter, pushing selected parts of the blank, melting it at high temperatures and pressing it against the spindle. Such high pressure and high temperature cause the flow effect of high-strength hot-rolled steel, so the billet, like clay, is obediently stretched along the axis under the extrusion of the rotary wheel, and becomes covered on the surface of the mold. Products with different wall thicknesses and complex shapes. In this process, the movement of the rotary wheel is controlled by a numerical control program, and its precision is much stronger than that of a craftsman's hand, so high-precision products under precise control can also be obtained.
3. Hot spinning and automobile manufacturing
Today, hot spinning technology has been closely related to the automobile manufacturing industry. Energy saving and emission reduction has become an important development direction of the automobile industry, and an important means to achieve this goal is - weight reduction. The horizontal double-wheel CNC hot spinning machine produced by Shanghai Shangxi Technology is specially designed for metal materials that require heating and spinning. It can process 12mm aluminum alloy, 4mm titanium alloy, 8mm steel and other materials, which is a lightweight for parts in the industry. Production provides a good equipment solution.
Currently, heated spinning technology can be used in the manufacture of automotive wheels and transmission systems. To transmit the power of the engine to the wheels, the car requires particularly wear-resistant rotating parts. Traditional forging and casting can provide such parts, but the heated spinning process provides components that are up to 50% lighter than traditional processes. Can effectively reduce the fuel consumption of the car, thereby reducing carbon dioxide emissions.