Analysis on denaturation law of spur gear precision forging
For a long time, researchers and scholars all over the world have made unremitting efforts on the deformation law analysis, […]
For a long time, researchers and scholars all over the world have made unremitting efforts on the deformation law analysis, […]
Improving the service life of cold extrusion die is the key point of precision forming of large modulus spur gear.
In this paper, ANSYS software is used to dynamically simulate the dual frequency induction heating process of bevel gear, involving
All automobile gear hob teeth must be in the same center, especially for insert hob teeth with undercutting and chamfering
After the surface modeling and Simulation of straight cup grinding wheel is completed, the tooth surface needs to be discretized
The grinding process of spiral bevel gear is a very complex material removal process. In order to simplify the complexity
The switching time of medium and high frequency current is involved in the time-sharing of dual frequency induction heating of
Taking a pair of spiral bevel gears processed by SGM (large wheel generation method and small wheel deformation method) as
Considering the random error interference, the vibration characteristics of spur gear transmission in two cases are compared and analyzed: ①
Spiral bevel gear is widely used in the transmission system of heavy vehicles with the advantages of high transmission ratio,
Before the double frequency induction heating experiment of bevel gear, it is necessary to build the experimental platform, process and
It has the advantages of compact structure and stable operation, and is the most widely used mechanical transmission system. As
The double frequency heating experiment and numerical simulation of bevel gear are carried out with the determined process parameters. The
The experimental scheme of dual frequency induction heating of bevel gear is as follows: install the medium and high frequency
After induction heating, the bevel gear will be quenched and cooled. Different microstructure distribution can be obtained by using different
The dual frequency induction quenching process of bevel gear can be divided into induction heating process and quenching cooling process.
1. Assumptions The numerical analysis of the induction heating process of bevel gear by using the finite element software ANSYS
The current penetration heating depth is inversely proportional to the current frequency. Therefore, when the bevel gear induction heating mainly
Because the stiffness calculation of spur gears is now very mature, many literatures have given relevant regression formulas. In order
As can be seen from Fig. 1a) and Fig. 1D), a more uniform temperature field model is obtained when the
As can be seen from Fig. 1a) and Fig. 1d), a more uniform temperature field model is obtained when the
The dual frequency induction heating process is applied to obtain a more uniform temperature field model of bevel gear. There
By optimizing the cold extrusion process parameters of spur gears, spur gears with high forming quality can be obtained, but
The dual frequency induction electromagnetic thermal coupling mode of bevel gear is analyzed, and the mode of alternating medium and
Combined with the characteristics of medium and high frequency induction heating, a dual frequency induction heating process is proposed to
Firstly, the simulation scheme is formulated for the numerical simulation of double frequency induction heating of bevel gear, the problems
The most obvious feature of the induction heating process is the skin effect. When the penetration induction heating method is
The author verifies the proposed prediction method of strong tooth scraping on demaji nt5400dcg turning and milling machine. Among them,
The large modulus standard involute bevel gear with 12 modulus, 15 teeth, 20 º pressure angle and 40mm tooth width
CNC three-axis gear hobbing machine can feed in axial, tangential and radial directions at the same time. The axial feed
In the process route of gear processing, generally after gear finishing, the surface induction quenching is required to improve the
The simulation model of electromagnetic induction heating of bevel gear includes bevel gear, induction coil and air. The numerical simulation
Another way to eliminate undercutting is the “multi space supplement” of gear design. That is, increase the tooth top of
Aiming at the problems of large end machining allowance, large tooth tip collapse angle and large forming load in the
Since the change trend of vibration response of driving wheel and driven wheel is consistent, the driving wheel is taken
In the surface hardening technology of bevel gear, induction heating quenching is one of the four basic processes. Induction heating
With the in-depth research on the forming process of spur gears and the continuous development of market demand, the modern
CWE calculation is the most computationally intensive task in simulation. Therefore, in order to improve the simulation efficiency, this paper
With the increase of wear degree, the cutting performance of gear hob will gradually decline, which will reduce the finish
In recent years, with the development of equipment manufacturing industries such as transportation, aviation and construction machinery, the total amount
The wear of gear hob is a very complex proposition, and there may be different answers. It not only depends
The positioning of automobile gear hob should ensure that the whole aperture and end face are required to be used.
The method of measuring the tooth thickness of automobile gear parts is usually replaced by the method of measuring the
The two-dimensional chip shape is combined with the oblique cutting model to predict the cutting force at each time step.
Improving the service life of cold extrusion die is the key point of precision forming of large modulus spur gear.
The actual meshing state of spur gear is shown in Figure 1, and the distance from the node to the
Tooth surface friction parameters of spur gear under random error interference The time-varying friction model on the meshing line of
In order to study the bending stress of helical gear tooth root, the test will be measured under three working
As a prominent performance of modern industrial production is accuracy, the accuracy of automobile gear hobs is regarded as the
The main problems in the production line are as follows: Based on the actual situation of automobile gear production line,
Conical gear is the key part of the three piece special machine. The material of the part is 45# medium
The inspection of meshing contact area of spiral bevel gear in machining and assembly is traditionally colored meshing inspection. That
The author uses the dexel based solid modeling system (module works) to realize the kinematic model of strong tooth scraping.
The error of spur gear mainly includes pitch error and tooth profile error. The pitch error and tooth profile error
As an important transmission part in automobile and machinery industry, the efficiency of traditional machining can not meet the high-speed
In order to study the vibration characteristics of spur gear pair considering the randomness of error and tooth surface friction,
As shown in Figure 1, the 3-DOF bending torsion coupling dynamic model of spur gear pair is established by using
In order to study the influence of different dynamic loading conditions on the contact area of spiral bevel gear, the
MCL ⁃ 1A helical gear wear testing machine is used for the experiment, which is driven by the spindle motor,