Numerical simulation of forging process of driven spiral bevel gear blank
Combined with the practice of ZHY gear, the forging process of driven spiral bevel gear blank is numerically simulated. In […]
Combined with the practice of ZHY gear, the forging process of driven spiral bevel gear blank is numerically simulated. In […]
The research situation of gear forging at home and abroad and the application of numerical simulation technology in gear forging
Contour spiral bevel gear can be modeled in the modeling module of UG, but this method is only for a
When machining spiral bevel gear by forming method, under the condition of constant feed speed, the cutting force on the
Spiral bevel gear is an important transmission part of automobile, engineering machinery and other equipment. It mainly includes two forms
China’s research on spiral bevel gear is relatively backward. In order to change the monopoly of foreign technology, the former
Spiral bevel gear has the advantages of large overlap coefficient, strong bearing capacity, stable transmission and low noise. It is
1.Selection of processing temperature and strain rate After drawing the hot working diagram, the appropriate processing temperature and strain rate
The digital machining technology of spiral bevel gear is developed with the gradual maturity of computer technology, information technology, network
The manufacturing technology of spiral bevel gear is closely related to the progress of machining machine tools. Since the appearance
Gear is an important basic part of machinery, and gear transmission is also the main transmission form of most mechanical
Based on the meshing principle of equal height spiral bevel gear, the pitch cone and the base cone are two
When using milling cutter for machining equal height spiral bevel gear, the gear cutting principle is the imaginary plane gear
The research on the cutting force of spiral bevel gear pinion milling is the basis of the power check of
The parametric modeling of equal height spiral bevel gear with UG / OpenGRIP needs to deduce the corresponding parameter equations,
The forging process of gear blank under different initial forging temperature and different friction coefficient is studied. The forging temperature
In the coordinate system SA, the bevel equation of the small wheel surface of spiral bevel gear is: Where: (U1,
The stroke load curve of the die in the general forging process of spiral bevel gear is shown in the
The basic theory of spiral bevel gear is more profound and involves many disciplines. The French geometer T. Olivier put
The research of many scholars in China and abroad gives us a deeper understanding of the research status of equal
Equal height spiral bevel gear has complex tooth surface structure and strict meshing conditions, so its three-dimensional modeling and design
The theory of spiral bevel gear was put forward by E. wiidhaber, M.L. Baxter and other outstanding scientists of Gleason
Although a lot of research has been done on the precision forging of spiral bevel gear at home and abroad,
1.Grinding of milling cutter bar Before preparing for the gear cutting experiment, the grinding of the cutting edge of the
The equivalent stress, strain and temperature of spiral bevel gear forging during final forging are analyzed. It is found that
As shown in the figure, the coordinate system Sa of the large wheel surface cone of spiral bevel gear is
When machining the large gear of spiral bevel gear with forming method, the slight difference between the tooth profile angle
The cutting force of spiral bevel gear milling is an important data for the design of NC gear milling machine.
In the function of Defrom-3D post-processing, the curves of equivalent stress, strain and temperature of spiral bevel gear blank with
The forging experiment is carried out by hot forging. Firstly, the forging die is processed, and then the forging experiment
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