With the acceleration of China’s industrialization process, automobile, agriculture and construction machinery have higher requirements for the development of gear […]
After the cutting of equal height spiral bevel gear, the processed equal height spiral bevel gear shall be inspected in
There are two different directions of rotation for equal height spiral bevel gear milling cutter, which are divided into left
The two-dimensional diagram of upper and lower dies of spiral bevel gear is shown in Figure 1. 1.Establishment of mold
Using Pro / E4 0 establish the geometric model of extrusion process, including the geometric model of upper and lower
1. Formation analysis of hypothetical plane forming wheel The concept of hypothetical plane forming wheel is that there is a
Four points are selected at the tooth top of spiral bevel gear forging, and the position distribution is shown 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
Through the gear meshing principle, the machining method of equal height spiral bevel gear is studied, the structure of milling
In view of the problems of large material waste and high cost caused by the traditional die design and process
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
(1) The hot forging process of spiral bevel gear blank is completed at high temperature, and the metallographic structure of
The hot forging simulation forming process of spiral bevel gear wheel is similar to the cold forging process. The model
Due to the high cost of precision forming and high requirements for equipment, the production method of plastic forming blank
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 process of driving spiral bevel gear blank also includes four steps: heating, drawing, die forging and trimming. That
The forging object of spiral bevel gear blank (without punching and trimming) is shown in the figure. Comparing the numerical
Spiral bevel gear is the key transmission part of many important machines and is widely used. Forging spiral bevel gear
Forging is one of the main ways of manufacturing spiral bevel gears. The forging of spiral bevel gear can be
The die drawing process of spiral bevel gear precision forging is simulated in DEFORM-3D. The specific simulation process is as
Spiral bevel gear is a kind of transmission part that can drive stably and low noise according to stable transmission
A lot of simulation research has been carried out on the production process of driven spiral bevel gear blank and
From the observation of the factors affecting the forging difficulty of spiral bevel gear small wheel, the volume of spiral
(1) Stress analysis method of spiral bevel gear die DEFORM-3D software has two methods for stress analysis of spiral bevel
The hot forging cold finishing method is used for the experiment. Because the forging simulation of small wheel shows that
The pre punching process is to prepare for the punching process and reserve the punching skin thickness for the punching
Using the die model established by the software, the contact condition of the contact area can be observed through motion
The pitch cone angle is a very important parameter in the geometry of spiral bevel gear, which is directly related
The driven spiral bevel gear of automobile rear axle is an important part of automobile main reducer. At first, in
(1) Aiming at the fatigue failure of the blank forging die of driven spiral bevel gear, the equivalent stress field
Precision forging die processing of spiral bevel gear is the main means of rapid product development in industry for a
From the figure, it can be seen that in the simulation of cold precision forging process, the equivalent stress distribution
In the actual production process, in addition to die wear, hot forging die cracking is also one of the main
The shaping process is forging, so that the blank is in good agreement with the ring rolling die, bite in
The whole production process of driven spiral bevel gear blank is simulated, and the ring rolling steps are mainly introduced.
The service life of spiral bevel gear blank hot forging die plays an important role in the process of hot
During the cold precision forging of spiral bevel gear big wheel, the blank deforms under the loading force of the
After the simulation, open the post-processing option in the DEFORM-3D main window to view the simulation results. The post-processing window
The material utilization rate and productivity of the machining process are both low, and its blank also has the disadvantages
Determination of die wear and forming load test scheme determination of die wear and forming load test scheme aiming at
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 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
For the blank of a driven spiral bevel gear of ZHY gear, the production process and die of the driven
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
1. Modeling of gear tooth surface Importing the data of tooth surface points into UG can generate tooth surface pieces.
Whether the forging can be out of the die is an important factor that must be considered in forging. The
Taking the small module spiral bevel gear as an example, the cold precision forging simulation research is carried out. The
The tooth surface with good meshing performance is the basis for creating precision forging die. Therefore, the premise of using
The forging technology of straight bevel gear is gradually mature, which provides a certain technical basis for the forging of
The geometric dimension of the wheel blank is the basis for the design and processing of the spiral bevel gear
In order to verify the accuracy of machining parameter calculation, the ease off difference tooth surface is constructed for contact
