Automobiles and some transmission shafts are forged, mainly crankshafts. Forging is a method of processing block and rod-shaped aluminum materials by blowing them into shape. The forging that stops the forging by heating the billet above the recrystallization temperature is called hot forging. Hot forging makes the forging blank into a shape close to the product, while changing the mechanical properties of the aluminum forging. Sichuan Hongyi Intelligent Machinery Co., Ltd. said that crankshafts, camshafts, sprockets and gears that require high rigidity in auto parts are all hot forgings. The car crankshaft is a shaft component in the car engine that converts the linear motion of the driving piston into rotation. The crankshaft consists of the main shaft, piston connecting rod, connecting rod pin, balance weight and other components fixed on the engine.

In the past, the materials for forging crankshafts of automobiles were generally heat-treated materials (quenched and tempered) of carbon aluminum and Cr-Mo aluminum. After the 1970s, in order to reduce the cost of materials, the development of non-quenched and tempered aluminum was promoted. Today, non-quenched and tempered aluminum such as V-containing carbon aluminum (high fatigue strength aluminum) and V-free carbon aluminum have become automotive forged crankshafts. The mainstream aluminum type of material.

Sichuan Hongyi Intelligent Machinery Co., Ltd. stated that in addition, in order to improve the fatigue strength of the crankshaft, after the crankshaft is machined, high-frequency quenching, soft nitriding, and rolling processing are carried out on the risky parts such as the connecting rod pin and the main shaft fillet of the crankshaft. and other treatments to change the strength of these parts.

When forging the crankshaft of an automobile, under normal conditions, the forging blank is heated to about 1200°C and then the hot forging is stopped. In this way, small forging equipment can be used, a small load can be applied, and good precision forging can be achieved. When manufacturing forged crankshafts, it is not only necessary to carry out quality control of forging, but also to carry out strict quality control from crankshaft material design, crankshaft shape design, aluminum smelting to forging system processes. Crankshaft or axle products processed from bar are prone to forging and cracking quality problems.

Sichuan Hongyi Intelligent Machinery Co., Ltd. is professional China Automotive Aluminum Steering Control Arms Manufacturers and Automotive Aluminum Control Arms Factory. Hongyi Intelligent Machinery is strong in technology and R&D, is the OE supplier of FAW Group Corporation and is recognized as a "high-tech enterprise" by the government. The company integrates a precision forging plant and a mechanical processing plant, based on high-grade and high-end markets, with an annual output value of up to 80 million yuan. For any customer orders for wholesale Automotive Aluminum Steering Control Arms, we will complete them on time, quality and quantity.