Influence of heat treatment process on corrosion performance of Automobile Gears
In the process of automobile manufacturing, as an important part of the transmission system, the quality of the gear directly […]
In the process of automobile manufacturing, as an important part of the transmission system, the quality of the gear directly […]
Since the mid-1980s, China’s gear industry has developed rapidly. Due to the high requirements of technical parameters, the gear required
In the early automobile gear production, heat treatment induction quenching was widely used because of its high production efficiency, small
Heat treatment carbonitriding process is frequently used because it can effectively improve the depth of carburizing layer, obtain high hardness,
Heat treatment carburizing process can make gears have good comprehensive mechanical properties, so it is most widely used in the
Automobile gears are usually made of low-carbon alloy carburized steel. Gear blanks generally need to go through multiple cold and
The research object is a light truck drive axle, which is mainly composed of main reducer, axle housing, axle shaft,
Due to the complex contact problem of helical gear, further research is needed in the following aspects: ① Fully parametric
Based on the research of bionics theory, combined with the characteristics of automobile gear meshing transmission, and based on the
When the contact stress of automobile gear is too large, the plastic flow of tooth surface metal due to yield
In the high-speed and heavy-duty gear transmission of automobile gears, the pressure in the meshing area of the tooth surface
Fatigue pitting of the tooth surface of automobile gear is a common failure form of closed soft tooth surface gear
Traditionally, the methods to improve the wear resistance of gears are mainly to change the gear manufacturing materials or the
In automobile gear transmission, there are many different forms of tooth surface wear with different working conditions. There are mainly
In China’s automobile industry, the materials used for gears in the gearbox have mainly used the gear steel series of
In foreign countries, the carburized gear steel initially used is basically manganese steel and manganese chromium steel. For example, the
Through the friction and wear test, the comparative experimental research between the smooth sample and nine different pit bionic ring
According to different working conditions, gear transmission can be divided into closed type and open type; According to different use
Automobile gear transmission product development test refers to a series of tests required to check the design level and process
The main purpose of the durability test of automobile gear transmission system is to simulate the load conditions that the
Gear transmission product development test refers to a series of tests required to check the design level and process rationality
After studying and analyzing the research results on the forming of spiral bevel gear at home and abroad, it is
Based on the analysis of the forging process of the double spiral bevel gear of an automobile, the forming process
The driven spiral bevel gear of an automobile rear axle is taken as the research object, and its part structure
Figure 1 is the structure diagram of the designed precision forging part. Because the tooth surface of the spiral bevel
In the helical gear transmission of hybrid electric vehicle, although the rolling motion conditions are considered in the tooth surface
The meshing error of gear teeth mainly comes from the error caused by gear processing and installation. Machining error mainly
The planetary gear transmission system of hybrid electric vehicle studied is composed of composite planetary gear mechanism and parallel axis
In the cylindrical gear transmission system of hybrid electric vehicle, due to the need of lubrication and the manufacturing accuracy
Using the lumped parameter method, fully consider the nonlinear factors in the gear transmission system, such as time-varying meshing stiffness,
Barrel grinding can improve the tooth surface roughness and the fatigue life of automotive helical gears under certain conditions, and
In recent years, companies in Japan and Taiwan have studied and applied the spraying technology of composite materials containing MoS2
Molybdenum disulfide (MoS2), as a high-quality solid lubricating material, has good antifriction, wear resistance and bearing capacity. Molybdenum disulfide (MoS2)
The application of manganese phosphate conversion coating process in improving the surface strength of transmission parts first appeared in the
As shown in the figure, the failure zone diagram of automobile gear transmission made by Nieman, Professor of Munich University
With the development of science and technology, as an important technology to introduce residual compressive stress, change the microstructure of
Strong shot peening can greatly increase the residual compressive stress near the surface of automobile gear, promote the transformation of
The automobile rack and pinion steering gear assembly is an important steering component of many automobiles. The automobile rack and
In the research of surface strengthening technology for bending fatigue strength of automobile gears, Japan has studied and developed various
The design of the main interface of the rack and pinion steering gear is very important in the process of
Perfect product criteria and reliable product design knowledge are the guarantee for the rapid establishment and correct design of product
Japan and Germany have done a lot of research in the basic research field of automobile gears. Steel roller test
Complete the parametric design analysis and research of automobile rack and pinion steering gear based on CATIA. In the implementation
The virtual assembly process is that the user changes the manual assembly operation process of the specified automobile rack and
Automobile rear axle is also called drive axle. It not only bears the load, but also acts as differential and
With the enhancement of China’s national strength, China’s scientific level has been greatly improved. At the same time, it has
The rack is an involute gear whose base circle radius is infinite, and its contour has changed from involute to
On the basis of studying a large number of relevant data at home and abroad, this paper makes an in-depth
The heat treatment strengthening technology of automobile gears should pay attention to the control of surface integrity, that is, to
Interference analysis is one of the important contents of virtual assembly design of automobile rack and pinion steering gear. After
The basic parameters of automobile steering gear mainly include the number of teeth, modulus, pressure angle, tooth width, displacement coefficient
General products are composed of one or many parts. In order to realize the parametric design of products, we must
This paper introduces automobile steering system and automobile rack and pinion steering gear, then introduces the current situation of automobile
After the above experimental analysis and referring to the metallographic inspection of Automobile Carburized Gears, it can be observed that
1. Analysis of fracture morphology of aluminum alloy automobile gear In order to analyze the fracture failure cause of aluminum
Gear is an important part of automobile transmission device, which has the functions of changing movement direction, changing speed and
Through gene analysis and basic performance experiment of automobile gear materials, it is very important to master the basic parameters
The automotive helical gear transmission system under various complex working conditions makes the surface strengthening technology of automotive helical gear
The fatigue damage of automobile gear tooth surface is caused by the repeated action of automobile gear on the tensile
In the field of scientific research and engineering technology, numerical simulation is a basic research method that pays equal attention