Hot and Cold Precision Forging Process of Clutch Outer Gear Hub
With the rapid development of the automotive industry, the demand for automotive transmissions is increasing year by year. The outer gear hub of the clutch is an indispensable part of an automobile transmission. Its structure is complex, the size is precise, and the processing is difficult. It has always been a hot spot in domestic and foreign research.
The biggest difficulty in forming the outer gear hub part of the clutch is the inner spline. Because of the small step at the step, the inner spline cannot be processed by mechanical processing methods such as gear shaping and tooth pulling, and its sidewall is thin, making it difficult to form. The use of stamping, spinning, and other forming methods has problems such as large forming load, and low mold life. There is also difficulty in ensuring forming accuracy.
Therefore, the production of the outer gear hub of the clutch may require a different approach that takes into consideration all these factors. As of the information provided, a single forging process cannot produce a perfect outer gear hub of the clutch. Most manufacturers have tried to develop a combo that can deliver the highest possible precision.
The forming of the internal spline of the external gear hub is the most difficult process. You also need high precision features. CxinForging is one of the manufacturers that have found a perfect formula for forming the outer gear hub of the clutch. The process ensures one of the most precise gear hubs in the market.
CxinForging Clutch Outer Gear Hub Forming Formula
CxinForging formulated a hot forging and cold extrusion precision forming process plan: blanking-hot forging preform-rough turning blank-cold extrusion of internal spline-machining. After blanking, hot forging is used to produce a cylindrical blank with an inner diameter smaller than that of the straight wall cylinder at the lower end of the step. Then rough lathe processing to preform a stepped cylindrical part, and then cold extrude the inner spline to the part. The required size is finally machined to obtain the clutch outer gear hub parts meeting quality requirements. Since the internal spline does not require subsequent machining, its tooth profile size parameters are consistent with the part drawing. This reduces the processing cost and increases production efficiency.
This forming process enhances the production efficiency and improves the part’s quality. The cost of the production is also lower the possibility of mass production is also high. There is also improvement of the overall quality and the precision of the outer gear hub of the clutch. These are reasons CxinForging tops are among the go-to manufacturer of clutch outer gear hubs.
Cxin Forging focuses on the production and processing technology of hot forging, warm extrusion, cold forging. We have been providing hot and cold precision forging of aluminum alloy, carbon steel, stainless steel, and other metal materials for over 10 years. We also provide customers with CNC machining centers, brazing and surfacing, and other processing services. Cxin Forging provides the production and processing services of cold, warm, and hot forging blanks for many auto parts brand manufacturers in China, Europe, and the United States. Contact us today for all your automobile forging needs!