Automotive Components Custom Aluminium Parts Cnc machined Processing Efficiency CNC precision Machining Aluminum Services cnc milling turning

Definition of CNC machining

Connecting rods are extremely critical parts for gasoline and diesel engines. They come in many varieties and in huge quantities, with the largest demand for automobile engines.

Automobile engine connecting rods are generally made of 45# steel or 40Cr alloy steel. Ductile iron is the best cast iron, so it is often used for connecting rods on low-speed diesel engines.

Connecting rods have high mechanical requirements, so the manufacturing method used is forging. Connecting rods for automobile engines are small forgings and need to be produced in large quantities.

Structure of CNC Aluminum machined

Connecting rods are slender, variable-section non-circular rods, and the cross-section of the rod body gradually decreases from the big end to the small end to adapt to the rapidly changing dynamic loads during work. It consists of three parts: the big end of the connecting rod, the rod body and the small end of the connecting rod. The big end of the connecting rod is separated, half of which is integrated with the rod body, and the other half is the connecting rod cover. The connecting rod cover is assembled with the crankshaft main journal with bolts and nuts.

Advantages of CNC

Aluminum alloy connecting rods have the advantages of light weight, high strength and corrosion resistance. And it can reduce the weight of the engine, thereby improving the power-to-weight ratio of the engine.

Function of Aluminum CNC

The connecting rod is an indispensable part of the engine structure. The reliable operation of the engine, the reduction of losses and noise, largely depends on the quality and precision of the connecting rod.

The connecting rod connects the piston and the crankshaft, and transmits the force exerted on the piston to the crankshaft, converting the reciprocating motion of the piston into the rotational motion of the crankshaft. It is one of the main transmission components of the automobile engine. It transmits the pressure of the expanding gas acting on the top of the piston to the crankshaft, converting the reciprocating linear motion of the piston into the rotational motion of the crankshaft to output power.