Cold Extrusion Process of Automobile Ball Pin
Automobile Ball Pin is an essential part of the connecting part of the automobile steering rod. The spherical bearings connect the steering knuckles to the steering arms. In its design is more like that of most four-limbed animals.
During the working process of an automobile, the force on this part is more complicated. The ball stud is also subjected to various loads such as tension, compression, shear, torsion, bending, and impact. Therefore, it is required to have a relatively high fatigue strength and impact toughness.
Therefore, the manufacturing of the ball pin must consider the issue of quality. The ability of the part to withstand these conditions is critical. Otherwise, there will be a very high rate of wear and tear of the ball pin. There are many processing methods in the industry, but several factors determine the best forming method.
Depending on the type, size, shape, etc., of ball studs, the commonly used processing methods in production include turning, cross wedge rolling, and cold extrusion. A lot of metal materials and machining man-hours are wasted in the process of turning. This increases the cost, and the mechanical properties of the ball studs were not ideal.
Cross wedge rolling processing ball headpins requires higher processing equipment and die design. As a near-net-shape plastic forming technology, cold extrusion is now the most widely common method in the production of ball studs.
The cold extrusion process is based on the principle of plastic deformation of a metal at room temperature. The process uses a mold mounted on a press to plastically deform the metal in the mold cavity under considerable pressure and a certain speed. That’s how the blank gets the desired shape, size, and performance.
In the process of cold extrusion, the metal is basically in a state of three-way compressive stress, which greatly improves the plastic deformation ability of the metal and makes the metal produce stable plastic flow in the mold cavity, forming the required shape and size, and achieving less and no cutting Purpose. It saves a lot of metal materials, improves production efficiency, and improves dimensional accuracy. There is also an improvement in the mechanical strength of the ball pin.
The other advantage of cold forging ball pins is the high speed of processing. The cold forging processing method offers fast batch processing speed. Once the processing layout is in place, it is possible to produce thousands of products. Therefore, cold forging of ball studs is ideal for mass production.
Cxin Forging focuses on the production and processing technology of hot forging, warm extrusion, cold forging. We’ve been providing hot and cold precision forging of aluminum alloy, carbon steel, stainless steel, and other metal materials for over 10 years. We can provide customers with CNC machining centers and brazing and surfacing, and other processing services. Cxin Forging provides production and processing services for cold extrusion forming blanks of automobile ball pins for many brand manufacturers in China, Europe, and the United States. Contact us today for all your ball studs forging needs.