The Cold Extrusion Of Automobile Crankshaft Sprocket
The timing system completes the connection between the drive, crankshaft, and camshaft during engine operation. The crankshaft-timing sprocket is the part that acts as a “bridge” in the engine. It transmits power to the corresponding under the drive of the crankshaft. So it plays a critical role in the accurate power transmission of the timing system.
The crankshaft sprocket is a mechanical transmission part widely used in automobiles. The gear shape is complex, and the processing and performance requirements are very high.
The traditional method of producing crankshaft timing sprocket was mechanical processing, and also powder metallurgy molding process has also been used. The problem with mechanical processing is that it requires professional processing equipment. The speed of processing and overall efficiency if low. In addition to that, the hardness of the powder metallurgy molding process is low, about 30-45HRC, which cannot meet the requirements of the sprocket.
CXIN Forging cold extrusion technology
CXIN Forging uses cold extrusion technology to produce crankshaft timing sprocket and cold extrusion technology to process gears. The forming process can alleviate most of the mechanical processing shortcomings, such as machining. It has the following advantages:
- Fast processing speed. We can have the part extruded in a few seconds, which makes it suitable for mass production.
- High density and strength. The crankshaft sprocket can reach up to 60-62HRC through carburizing heat treatment. This density and strength increases sprocket service life
- Low cost. The overall cost of extruded crankshaft sprocket is lower than mechanical processing. No heating and gear shaping greatly reduces the cost
- High precision. The tolerance of the extrusion process is very small and meets the processing requirements of a 0.125mm tolerance zone.
CxinForging specializes in cold forging, warm forging, hot forging, and compound precision forging, providing corresponding forging parts for many automobile and engineering machinery companies. If you also have crankshaft sprocket or other forging requirements, please get in touch with us.