Machining process of car wheel hubs
Release Time:
2019-03-25
The quality and reliability of wheel hubs are not only related to the safety of vehicles, passengers, and goods, but also affect the stability, maneuverability, and comfort of vehicles during driving. This requires good wheel hub dynamic balance, high fatigue strength, good stiffness and elasticity, high dimensional and shape accuracy, and light weight. Aluminum wheel hubs meet the above requirements with their good comprehensive performance.
Brake drums and wheel hubs are widely used in automobiles. So what are the specific construction processes? Longyao Tengfei Auto Parts introduces:
Wheel hub machining is one of the most important safety components in automobiles. There are steel wheel hubs and aluminum wheel hubs. The wheel hub bears the pressure of the weight of the car and its load. It is subjected to the dynamic torque during starting and braking, and also bears irregular alternating forces from different directions generated by dynamic loads such as turning, uneven road surfaces, and road obstacles during driving. The quality and reliability of the wheel hub not only relate to the safety of the vehicle, the people and goods on board, but also affect the vehicle's stability, maneuverability, and comfort during driving. This requires the wheel hub to have good dynamic balance, high fatigue strength, good rigidity and elasticity, high dimensional and shape accuracy, and light weight. Aluminum wheel hubs, with their good comprehensive performance, meet the above requirements and have outstanding performance in safety, comfort, and lightweight design, winning market favor and gradually replacing steel wheel hubs as the best choice.
Manufacturing Equipment, Technology, and Trends of Aluminum Wheel Hubs The main production process of automobile aluminum wheel hubs is: melting → refining → material inspection → low-pressure casting → X-ray flaw detection → heat treatment → machining → dynamic balance inspection → airtightness inspection → painting.
Wheel hub aluminum alloy melting equipment is classified by furnace type into tower furnaces, induction furnaces, tilting furnaces, and fixed furnaces, and by energy type into diesel, natural gas, coal gas, and electricity. Tower furnaces have fast melting speed, low loss, and low energy consumption; induction furnaces have fast melting speed, uniform alloy composition, and a good production environment; tilting furnaces can be used for batching and as insulation furnaces, are safe to use, and easy to maintain; fixed furnaces can be used for batching and as insulation furnaces, and are simple to use and maintain; fuel has high calorific value, high melting efficiency, and is easy to use and maintain; gas has a good and clean production environment and is easy to use and maintain; coal gas is economical and affordable; electricity is easy to control and has a good production environment. Among them, fuel or gas-fired tower-type rapid melting furnaces are preferred, and the use of an aluminum scrap melting chamber is even more convenient, making it the primary equipment.
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