Gluing failure of automobile gear tooth surface
In the high-speed and heavy-duty gear transmission of automobile gears, the pressure in the meshing area of the tooth surface […]
In the high-speed and heavy-duty gear transmission of automobile gears, the pressure in the meshing area of the tooth surface […]
In recent years, the research on rotary forging in China has made substantial development. For the research on swing rolling, […]
The material utilization rate and productivity of the machining process are both low, and its blank also has the disadvantages […]
Ring rolling module is a special module of DEFORM-3D to simulate spur gear ring rolling process, which is a method […]
Determination of die wear and forming load test scheme determination of die wear and forming load test scheme aiming at […]
The ring production process is a complex deformation process with different steps: upsetting, pre punching, punching, shaping and ring rolling, […]
The advantages of spur gear ring rolling process include shorter production time, better quality, smaller tolerance and saving a lot […]
The distribution of metal streamline in each step of the blank making process of cylindrical gear ring is shown in […]
For the gear transmission system of flying vehicle, the meshing times of each gear in the system are different at […]
1. Import model Through the method discussed above, we can establish the three-dimensional model of the modified cylindrical gear in […]
In order to compare the changes of tooth direction error and tooth shape error of smooth pinion before and after […]
After the calculation of pre punching process is completed, enter the forming module of software pre-processing, add punching steps and […]
The upsetting process is upsetting with ordinary flat anvil, and the initial blank bar size of driven spiral bevel gear […]
Using the “model” module in UG, a simple model of spiral bevel gear die is drawn. The steps are as […]
The research on Isothermal Elastohydrodynamic Lubrication of cylindrical gears does not consider the influence of time and temperature changes on […]
The metal material used in the blank simulation of driven spiral bevel gear is low carbon steel 20CrMnTi. The chemical […]
The tooth profile and die design of precision forged spiral bevel gear are studied, and the machining experiments are carried […]
Fatigue pitting of the tooth surface of automobile gear is a common failure form of closed soft tooth surface gear […]
For the blank of a driven spiral bevel gear of ZHY gear, the production process and die of the driven […]
(1) Wear failure Wear failure refers to the failure caused by the friction loss between the working surface of the […]
Gear ring rolling is a continuous local plastic forming process, which is the intersection and combination of rolling technology and […]
Symmetrical double cone roll rolling technology and rotary rolling technology are the same technology of local pressurization and continuous accumulation […]
In the traditional technology, the processing of spiral bevel gear should go through the processes of heat treatment before blank […]
The gear transmission system of flying vehicle studied in this paper is composed of one-stage planetary gear train and two-stage […]
The structural parameters and test parameters of spur gear are as follows: the material of spur gear is 20CrMnTi, the […]
In order to verify the test results of the previous ring block model samples, the size distribution of the pit […]
Traditionally, the methods to improve the wear resistance of gears are mainly to change the gear manufacturing materials or the […]
1. Modeling of gear tooth surface Importing the data of tooth surface points into UG can generate tooth surface pieces. […]
In automobile gear transmission, there are many different forms of tooth surface wear with different working conditions. There are mainly […]
1. Equivalent stress analysis of three-dimensional contact of smooth cylindrical gear The results of three-dimensional contact equivalent stress of cylindrical […]
Whether the forging can be out of the die is an important factor that must be considered in forging. The […]
According to the static contact analysis principle of cylindrical gear, the passive cylindrical gear needs to be completely fixed, and […]
Figure 1 shows the three-dimensional contact solid model of cylindrical gear after importing ANSYS. The general preprocessor in ANSYS is […]
In order to verify the fatigue pitting corrosion model of cylindrical gear, the FZG cylindrical gear wear tester in the […]
In order to make it more convenient and intuitive to compare the measurement data of smooth big gear and pit […]
Automobile cylindrical gear is the main component to transmit driving power. Its wear resistance directly affects the service life of […]
Surface coating and surface coating wear-resistant materials increase the wear resistance. For example, Eagle innovations has developed a new metal […]
Surface hardening treatment, such as surface quenching, shot peening and laser surface strengthening, can obtain the surface hardening layer, but […]
In China’s automobile industry, the materials used for gears in the gearbox have mainly used the gear steel series of […]
Taking the small module spiral bevel gear as an example, the cold precision forging simulation research is carried out. The […]
Because the process of establishing involute cylindrical gear in ANSYS is complex, CATIA, a 3D drawing software with powerful surface […]
The two-dimensional contact finite element analysis of spur gear meshing can only reflect the change of spur gear contact stress […]
The tooth surface with good meshing performance is the basis for creating precision forging die. Therefore, the premise of using […]
Due to the influence of random factors such as stress and environment, the strength degradation process is usually a continuous […]
Traditional flying vehicles refer to land and air amphibious vehicles that can drive on the ground and fly in the […]
The two-dimensional contact numerical simulation of smooth and concave bionic spur gears is carried out by using the finite element […]
There are four main shape parameters of spur gears: cumulative pitch error, tooth thickness error, tooth direction error and tooth […]
Based on the pressure and shear stress at the meshing interface of cylindrical gear obtained from the above analysis, the […]
Consistent with the smooth pinion, the pit pinion is measured with 3 teeth to grasp the shape parameters of the […]
The forging technology of straight bevel gear is gradually mature, which provides a certain technical basis for the forging of […]
In foreign countries, the carburized gear steel initially used is basically manganese steel and manganese chromium steel. For example, the […]
Through the three-dimensional numerical simulation of the ring sample, it is concluded that the ring sample with a certain surface […]
The geometric dimension of the wheel blank is the basis for the design and processing of the spiral bevel gear […]
According to the optimized preform shape and process parameters, the other parameters are set to the same value as. Use […]
The chamfering of tooth profile is different from the machining of tooth surface. In order to avoid scratching the tooth […]
Through the friction and wear test, the comparative experimental research between the smooth sample and nine different pit bionic ring […]
The comparative experimental study on the wear resistance of concave and smooth spur gears is carried out by using the […]
Pro/E is a parametric modeling software, which can establish the three-dimensional model of spur gear through parameterization, which greatly improves […]
The smooth big gear has 24 teeth in total, which are measured by full teeth. The changes of morphological parameters […]
The smooth pinion has 16 teeth in total. In this experiment, the pinion is measured with 3 teeth to grasp […]