Analysis of cold precision forging process of spiral bevel gear wheel
After the simulation, open the post-processing option in the DEFORM-3D main window to view the simulation results. The post-processing window […]
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
The numerical differentiation method is used to calculate the numerical differentiation of the formula, calculate the main direction and main
According to the production principle of spiral bevel gear pinion, the coordinate system shown in the figure is established to
Gear mechanism is one of the most widely used transmission mechanisms in various mechanical mechanisms. It relies on the direct
Cylindrical gear is widely used in high-speed and heavy-duty occasions because of its compact structure, strong bearing capacity and stable
1. Large tooth surface of spiral bevel gear Σ2 production and its equation The double-sided hobbing method is generally used
Spiral bevel gear is mainly used in high-speed and heavy-duty staggered shaft transmission, with small overall structure and large transmission
Spiral bevel gear is widely used in the field of mechanical power transmission. Its meshing theory and manufacturing technology have
After the sliding friction coefficient at the instantaneous meshing position of spiral bevel gear is solved by the formula, the
a. Based on the contact analysis model and hybrid lubrication analysis model of spiral bevel gear, the changes of friction
The point contact problem of conjugate surface of spiral bevel gear can be represented by the elliptical contact model shown
First, a limit tooling is added to the simple induction positioning tooling, that is, the welding limit bolt is used
In order to analyze the lubrication characteristics of spiral bevel gears, it is necessary to analyze the contact of spiral
According to the above optimization results, after technical communication with the customer and approval, the technical requirements for adjusting the
The supplier has a solid-state heating equipment with a water temperature of ± 10.38 ~ 30 kHz and a water
The raw material of driving spiral bevel gear is 20CrMoH steel in accordance with GB / T 5216-2014 structural steel
By analyzing the vertical forging process, it can be found that there are three stages from the beginning to the
By analyzing the metal flow, stress and strain, temperature, die load and damage of the blank in the process of
1. 3D model of equidistant spiral bevel gear According to the actual use and the characteristics of the gear, with
Small module spiral bevel gear is widely used in fields requiring intersecting shaft transmission, such as electric tools, mechanical instruments,
Considering the practical engineering application and the material library of Moldex3D simulation software, this paper uses alloy powder as metal
It can be seen from Fig. 1 that the stress distribution near the bevel of the extrusion die is also
Although the production efficiency of cross wedge rolling forming active spiral bevel gear blank is very high, the material utilization
(1) Metal flow field during hot extrusion Figure a ~ C in Figure 1 shows the metal flow state at
(1) Stress analysis of vertical forging process It can be seen from Figure 1 that the stress at the conical
The damage value in deform does not indicate whether there is damage, but the possibility of defects in this part
(1) For the cross wedge rolling process to form the driving spiral bevel gear blank, can we consider selecting the
Due to the material head, the material utilization rate is not high and the coaxiality of the product is not
During the rolling process, the rolled piece begins to fold in the wedge section II, and the shaft is rolled
Use the measuring tool in dfeorm post processor to measure the dimensions of each part of the spiral bevel gear
After the end of the wedge section, the forming of the workpiece is coming to an end, and the parts
The process adopts two processes: first, the rod is rolled by cross wedge rolling, and then the cone head is
As one of the core parts of the automobile drive axle, the driving spiral bevel gear is easy to be
The most traditional method of producing driving spiral bevel gear blank in China is pre forging cross forging method, which
This process is planned to adopt one-time rolling forming. Considering the requirements of cross wedge rolling process on the symmetry
As one of the core parts of the automobile drive axle, the driving spiral bevel gear is easy to be
Spiral bevel gear is the most critical part of the transmission system. The service life and vehicle performance of automobile
Figure 1 shows the engineering drawing of spiral bevel gear bearing structure female die. The outer diameter of the die
Swing rolling of spiral bevel gear is a processing method in which the blank is continuously and locally loaded by
In the swing rolling of spiral bevel gear, there are many factors affecting the forming quality and size of bevel
When using rigid viscoplastic finite element method to analyze metal plastic forming, the material meets the following assumptions: (1) ignoring
In recent years, some scholars have done a lot of research on the rotary forging process. The rotary forging of
Figure 1 shows the equivalent stress distribution diagram of closed die forging of spiral bevel gear. Under four reduction quantities,