Compound forming of spiral bevel gear by casting and forging
Using traditional manufacturing technology to produce high-performance complex parts has become the bottleneck restricting the improvement of product quality and […]
Using traditional manufacturing technology to produce high-performance complex parts has become the bottleneck restricting the improvement of product quality and […]
The data obtained from the on-site measurement of the profile error of spiral bevel gear teeth are the readings XRK
Automobile rear axle (also known as drive axle) refers to the rear drive shaft and related components used to transfer
As one of the main transmission parts of automobile, the driven spiral bevel gear of automobile rear axle has great
Physical simulation is a method based on similarity theory and combined with experiment to study the essence and law of
Use CATIA three-dimensional mathematical modeling software to establish the three-dimensional mathematical models of the upper die and lower die in
In the process of metal plastic forming, most of the deformation work of metal plastic deformation will be transformed into
The analysis of metal flow law can make us more clearly understand the flow law of metal in the forming
Based on the generating principle, the profile error of gear teeth is measured on the machine, and the workpiece needs
Equivalent strain refers to the strain equivalent to unidirectional strain formed by the appropriate combination of various strain components in
During the precision forging process of the driven spiral bevel gear of the automobile rear axle, the load will change
Stress is the internal force per unit area, which reflects the stress of spiral bevel gear blank. Figures (a), (b),
It can be seen from the research that the change of finishing forming force is not only affected by the
Using CATIA V5R21 three-dimensional mathematical modeling software, the three-dimensional mathematical models of upper and lower dies and blanks in the
In the forming process of driven spiral bevel gear of automobile rear axle, the practical application process of precision forging
The blank size, forming temperature, forming speed, friction factor and die structure of the precision forging process of the driven
The node velocity reflects the speed of metal flow at the node at a certain movement time. Figures (a), (b),
Strain is a physical quantity indicating the size of deformation, the accumulation process of plastic deformation and the development process
The unreasonable selection of the finishing quantity will directly affect the filling condition of the tooth profile and the roughness
The speed of forming speed has a very important impact on the processing efficiency and quality of forgings. With the
For the process of precision forging the driven spiral bevel gear of automobile rear axle at different temperatures, the distribution
When the forming temperature distribution of the driven gear is different, the forming temperature distribution of the driven gear always
Analyze the stroke load curve of the forming process of the driven spiral bevel gear of the automobile rear axle
On ABAQUS software, the meshing process of spiral bevel gear is divided into 200 incremental steps. In the dynamic analysis,
The plasticity of metal is related to temperature. The higher the temperature, the better the plasticity of metal. For forging,
As shown in the figure, the equivariant distribution diagram of five spiral bevel gear blank size schemes is shown, in
As shown in the figure, the equivalent stress distribution diagram of five spiral bevel gear blank size schemes is shown,
The figure shows the travel load curves of five blank size schemes, in which (a) (b) (c) (d) (E) correspond
On the premise of the compound forming process of spiral bevel gear hot forging and cold finishing, combined with the
The three-dimensional mathematical model of the driven spiral bevel gear of the automobile rear axle is established by CATIA V5R21.
(1) Forging material The forming metal material selected for the driven spiral bevel gear of automobile rear axle is a
The actual production verification of precision forging of driven spiral bevel gear is carried out in Luoyang Guanhua Precision Forging
The precision forging process adopted is open die forging, as shown in the figure is the schematic diagram of open
In the 21st century, the key to whether the automobile industry can win the first opportunity in the fierce competition
After studying and analyzing the research results on the forming of spiral bevel gear at home and abroad, it is
As shown in figure (a) and (b), the flow direction and size distribution of metal in X and Y directions
As shown in the figure, the flow direction diagram of metal materials in different stages of bevel gear tooth profile
Driven by the goal of high speed and high efficiency, foreign advanced countries have long eliminated the traditional “five knife
1. Establishment of finite element model According to the structural diagram of closed cold finishing and open cold finishing, the
The double split precision forging method of spiral bevel gear is used for finite element numerical simulation, the forming process
Wang Huajun et al. Simulated the precision forging process of driven spiral bevel gear by finite element method, analyzed its
Spiral bevel gear has conical shape and arc tooth shape, which is mainly used for transmission between intersecting shafts. Compared
Driven spiral bevel gear is an important part in automobile, aerospace and other fields. The optimization of its production process
By changing the die structure and the cone angle of lead billet, the test is carried out on the universal
The precision forging of spiral bevel gear parts is numerically simulated, and the accuracy of the numerical simulation results is
The three-dimensional geometric modeling of the punch and die is completed by ug-3 software, as shown in the three-dimensional geometric
According to the characteristics of cold and closed bevel gear finishing, two schemes of cold and closed bevel gear finishing
Based on the analysis of the forging process of the double spiral bevel gear of an automobile, the forming process
Gear research, production and production at home and abroad have been put into production for many years, and fruitful results
The reason why lead is selected as the blank of spiral bevel gear is that the recrystallization temperature of lead
When forming parts under cold extrusion, the selection of die materials for precision forming of spiral bevel gear should have
Among the designed parts, the tooth shape concave die of spiral bevel gear is the most critical part. Because the
Bevel angle of preform of spiral bevel gear α It has a great influence on the filling fullness of tooth
In order to verify the correctness of the on-machine measurement method for the profile error of spiral bevel gear, a
In order to facilitate the analysis, a quarter of the spiral bevel gear is selected as the research object. As
The position of the inner shunting surface is determined by the relative height of the punch and the die core,
The figure is the machine tool model diagram of h350g CNC spiral bevel gear grinding machine. The linear axis X
During the simulation, the temperatures of 900 ℃, 950 ℃, 1000 ℃, 1050 ℃ and 1100 ℃ are selected, and
The influence of the change of the relative position of the outer split surface on the tooth shape quality of
The shape of preform has a great influence on the cavity filling, material consumption and forming force of metal in