Connecting rods are a major mechanical component inside internal combustion engines, and connect the piston to the crankshaft, thus converting motion from the piston to the crankshaft, and finally, to the transmission. We choose different materials and production methods for connection rod forging, though in most cases, the rod is made of carbon steel. Other production methods include investment casting, drop falling, or powder metallurgy processes.
Investment casting is a manufacturing process in which the liquid steel is poured into the mold for product processing. This is especially useful for engines with a low production power, and require forged connecting rods that are used in engines that run on diesel fuel. However, because the casting process in this instance is relatively new and may cause problems down the line, steel forging is a more reliable choice for a highly efficient operation.
Solutions: Forged automotive, motorcycle components
Material: Carbon steel
Precision: ±0.01mm
Product drawing
Raw materials mainly include carbon steel, alloy steel, stainless steel, aluminum, and copper, etc., commonly used materials are 45#, Q235, Q345, 35Mn, 65Mn, 40Cr, 35CrMo, 42CrMo, 4140, 20CrMnTi, 20CrNiMo, 304, 310, 316, 431, Al, Copper, etc.
Forging equipment has 160tons, 300 tons, 400 tons, 630 tons, 1000 tons, 1600 tons, and 2500 tons, can forge ten grams to 55 kilograms of rough forging or precision forging products.
Machining equipment has lathe, drilling machine, grinder, wire cutting, CNC and so on.
Heat treatment includes normalizing, tempering, annealing, quenching, solid solution, carburizing, etc
The surface treatment includes shot blasting, spray painting, electroplating, electrophoresis, phosphate and so on
The testing equipment includes spectrometer, metallographic analyzer, hardness meter, tensile machine, impact testing machine, fluorescent magnetic particle flaw detector, ultrasonic flaw detector, three coordinates, etc
Products are widely used in petrochemical industry, engineering machinery, auto parts, locomotive and railway parts, metallurgy, shipbuilding, military products and other fields.
Mold development process
The R&D team conducts CAD design, CAM, UG, SOLIDWORKS modeling work.
We use superfine die steels as the raw material, allowing them to be processed with a CNC center, ensuring that the die steel’s precision is ensured and has excellent fatigue resistance, abrasive resistance, making sure that the forgings are produced in high quality.
There are more than 2000 sets of molds here at our company. The customers can choose any of them for processing to minimize cost. We perform inventory taking, clearing and recording every week to ensure that the production proceeds as scheduled.
Our mold warehouse is managed by following the IATF16949 quality management system and “6S lean managementâ€, giving a long service life to the mold and making it convenient for use and storage.