Machining technology of camshaft

The camshaft is a component in the piston engine, its function is to control the opening and closing actions of the valve. The materials used to make and produce the camshaft are generally ductile iron, alloy cast iron, chilled cast iron, and medium carbon steel. The following camshaft wholesale, camshaft manufacturers and camshaft brand companies will talk about the processing technology of the camshaft.

Ductile iron is a cast iron with spherical graphite after spheroidizing the molten iron close to the composition of gray cast iron through magnesium or magnesium alloys or other nodularizers. The graphite is spherical, which greatly reduces the segmentation and sharp effect of graphite on the matrix. Ductile cast iron has high strength, wear resistance, oxidation resistance, shock absorption and small notch sensitivity.

Alloy cast iron is the addition of manganese, chromium, molybdenum, copper and other elements to molten iron that is close to the composition of gray cast iron. Thereby forming an alloy with pearlite to reduce the amount of ferrite. Camshafts of alloy cast iron are generally used for high-speed camshafts.

Cold-chilled cast iron is generally used for cold-chilled treatment of low-alloy cast iron surface, so that the outer layer is white or hemp tissue, and the heart is still gray tissue.

Medium carbon steel is generally used for large engine camshafts, and the forming is relatively simple. After die forging, it is generally annealed to facilitate machining.

Because the law of valve motion is related to the power and running characteristics of an engine, the camshaft design occupies a very important position in the design process of the engine.