Establishment of two-dimensional contact model and meshing of smooth spur gear
Using the advanced curve drawing function in the two-dimensional drawing software CAXA electronic Using the advanced curve drawing function in […]
Using the advanced curve drawing function in the two-dimensional drawing software CAXA electronic Using the advanced curve drawing function in […]
(1)Metal flow law in extrusion process The metal velocity vector diagram of each stage in the extrusion process of spiral […]
Due to the problems in the free forging process of cutting board, other forming methods are considered to replace the […]
The process initial forging temperature of spiral bevel gear forging is 1000-1100 ° C. here, we discuss the relationship between […]
Through the stress-strain analysis and temperature analysis of spiral bevel gear blank after hot forging, we know that it is […]
The strain distribution of helical gear blank during final forging is shown in the figure. The maximum strain during final […]
The hot forging simulation forming process of spiral bevel gear wheel is similar to the cold forging process. The model […]
When the friction coefficient is 0.3 and 0.7 respectively, the energy consumption curves of iterative steps under different initial forging […]
The iterative step load curve of the general forming process of spiral bevel gear blank is shown in the figure, […]
Take three points as shown in Figure 1 to study the changes of stress, strain and temperature with time in […]
Extrusion is a plastic forming processing method that applies pressure to the spiral bevel gear blank in the die cavity […]
The forging object of spiral bevel gear blank (without punching and trimming) is shown in the figure. Comparing the numerical […]
A-F in the figure is the tooth direction error diagram of 24 teeth of the pit type large gear after […]
The equivalent stress distribution of spiral gear blank during final forging is shown in the figure. The maximum stress during […]
The die drawing process of spiral bevel gear precision forging is simulated in DEFORM-3D. The specific simulation process is as […]
According to the production practice of spur gear, the elastic deformation in the forming process of spur gear blank is […]
The forming load time curve of straight bevel gear blanks with different shapes is shown in the figure. From the […]
Because the bevel gear transmission system has no redundant design, when the independent hypothesis is used for reliability analysis, the […]
In the case of the same volume and the same upper and lower bottom diameter, it is quite cumbersome to […]
As an analysis method in the process of metal plastic forming, numerical simulation does not need to build physical models, […]
From the observation of the factors affecting the forging difficulty of spiral bevel gear small wheel, the volume of spiral […]
When the contact stress of automobile gear is too large, the plastic flow of tooth surface metal due to yield […]
(1) Stress analysis method of spiral bevel gear die DEFORM-3D software has two methods for stress analysis of spiral bevel […]
The magnitude of equivalent effect variation reflects the deformation degree of metal. As shown in the figure, the typical equivalent […]
In the rotary forging process of spur gear, the contact area between the swing head and spur gear blank is […]
Figure 1 intuitively reflects the forming conditions of blanks with different shapes. Figure 2 shows the upward forming speed distribution […]
Due to the particularity of the forming process of rotary forging, it takes a long time to calculate in a […]
The shape of straight bevel gear is relatively complex, and its surface is basically composed of curves and curved surfaces. […]
The establishment of straight bevel gear model is an important link in the preprocessing process of finite element simulation. A […]
In the figure, a is the tooth direction error diagram of the pit type pinion. Compared with before the test, […]
The pre punching process is to prepare for the punching process and reserve the punching skin thickness for the punching […]
The pitch cone angle is a very important parameter in the geometry of spiral bevel gear, which is directly related […]
The original blank of spur bevel gear is determined according to the forging shape, size, forging method and the required […]
The results of experimental mechanics research methods come directly or indirectly from the measured data, which reduces or avoids many […]
The metal plastic forming process of spur bevel gear is a complex deformation process. The material characteristics, deformation speed, temperature, […]
After optimizing the process, the effective hardened layer depth of the tooth root is 1.4mm, as shown in Figure 1. […]
Research objectives By changing the parameters of the straight bevel gear blank, the forming force energy relationship and the law […]
From the figure, it can be seen that in the simulation of cold precision forging process, the equivalent stress distribution […]
Variation law of residual strength of planetary gears in flight vehicle transmission system. Taking the bending fatigue residual strength of […]
In order to study the influence of different modification coefficients on the strength of cylindrical gears, a group of cylindrical […]
In order to facilitate the comparison with the parameters before the test, the smooth big gear after the test also […]
The shaping process is forging, so that the blank is in good agreement with the ring rolling die, bite in […]
The size of automobile gear hob mainly includes diameter and length. The diameter of automobile gear hob usually depends on […]
The temperature field distribution of spiral gear die is the key factor of the life of spiral gear die. The […]
After the simulation, open the post-processing option in the DEFORM-3D main window to view the simulation results. The post-processing window […]
In the high-speed and heavy-duty gear transmission of automobile gears, the pressure in the meshing area of the tooth surface […]
Determination of die wear and forming load test scheme determination of die wear and forming load test scheme aiming at […]
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 […]
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 […]
Fatigue pitting of the tooth surface of automobile gear is a common failure form of closed soft tooth surface gear […]
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 […]
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 […]