Realization of helical gear
The normal profile is scanned according to the spiral guide line to generate the helical gear profile surface, and then […]
The normal profile is scanned according to the spiral guide line to generate the helical gear profile surface, and then […]
It is necessary to set up the parameters and mechanical model in the crack propagation process of spur gear by […]
The blank material is DEFORM-3D material library AISI-4120, the temperature is 850 ℃, the temperature effect in heat conduction and […]
Figure 1 shows the helical cylindrical gear in the automobile gearbox. The normal surface modulus M = 2.5mm, the number […]
The solid contour is generated by cutting the solid contour as the spiral surface, and then the contour is generated […]
For a long time, for designers, the design or development of a process scheme is basically based on production experience. […]
The combined die is the key component for continuously extruding the external teeth of spur gear. The combined die adopts […]
When the module, number of teeth, helix angle and process parameters of helical gear are consistent, three groups of different […]
① Hot forging blank The material of spur gear in truck wheel reducer is 20CrMnTi. Solid bar is selected as […]
The difference between helical gear and spur gear is that the teeth of helical gear are distributed along the helix. […]
The continuous extrusion forming process of the external teeth of the spur gear is the same as that described above. […]
Due to the formula of indexing circle diameter d = mz, it can be seen that the diameter of the […]
1.Influence of blank temperature The blank temperature of spiral gear is 20 ° C, 450 ° C and 850 ° […]
Closed die forging process is a traditional one-step process. Its forming process is simple and convenient for analysis and research. […]
In order to clearly see the deformation process of inner and outer teeth in the forming process of spur gear […]
All teeth on helical cylindrical gears are the same and have unified characteristics. The normal tooth profile will be generated […]
The numerical simulation analysis is based on the assumption of rigid plastic finite element model. Properly combine and simplify the […]
Based on the existing forming methods of driving and driven bevel gear blank of automobile rear axle, a new composite […]
The figure shows the metal velocity distribution of different strokes in the cold finishing process of spiral bevel gear, in […]
As the starting point of casting forging compound forming process, whether the process design of casting process and the control […]
1. Tooth surface contact analysis of spiral bevel gear Based on the above theoretical methods, the whole process design software […]
1.Load stroke curve Figure 1 shows the load stroke curve of hot die forging process of different taper schemes of […]
Shu Qifu once put forward the concept of “equivalent blank” to study the influence of taper on the forming process […]
1.Load stroke curve Fig. 1 is the load stroke curve of spiral bevel gear blank obtained according to the approximate […]
The figure shows the distribution of equal effect variation in the final step. From the figure, it can be seen […]
Referring to the tooth size of cold precision forging preform, the closed hot die forging die chamber is designed and […]
Fully referring to the idea of shunting method, it is decided to adopt the approximate trapezoidal tooth profile scheme with […]
The traditional tooth surface contact mainly includes transmission error and tooth surface contact area. At present, a new analysis method, […]
CATIA software is used to complete the three-dimensional modeling of upper die, lower die and cold precision forging preforms with […]
The forming quality of forgings directly determines the quality and service life of products. The surface finish of the straight […]
The figure shows the equivalent stress distribution diagram of spiral bevel gear at different strokes in the cold finishing process, […]
1. Part drawing analysis Figure 1 is the part drawing of the driven spiral bevel gear of the rear axle […]
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 […]
The figure shows the stroke load curve of the helical gear cold finishing process. It can be seen from the […]
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 […]
The equivalent stress distribution diagram can clearly show the equivalent stress distribution in the bevel gear blank, so that the […]
During the precision forging process of the driven spiral bevel gear of the automobile rear axle, the load will change […]
By analyzing the equivalent stress distribution obtained from each group of simulation experiments, it is found that the equivalent stress […]
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 […]
The role of bevel gear die in the process of metal plastic forming is huge. In the process of metal […]
After the assembly of hob and helical gear, the following settings must be completed before the hobbing motion simulation of […]
Different bevel gear die structures will directly affect the metal flow, thus affecting the load required in the forming process. […]
In the process of forming helical gear by precision forging, friction will inevitably occur between the blank and the die […]
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 […]
At different forming speeds, the distribution law of equivalent stress in the forming process of each simulation experiment is basically […]
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 […]
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, […]