Study on precision forming process of bevel gear by cold rotary forging
The cold rotary forging precision forming process of bevel gear is an advanced manufacturing technology. Its process design in actual […]
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Design of concave die for spiral cylindrical gear centripetal bearing structure
Figure 1 shows the engineering drawing of spiral cylindrical gear bearing structure female die. It can be seen from the
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Compound crack inclination of spur gear
In the process of three-dimensional composite crack propagation, the existing fracture criteria can not completely and accurately describe the crack
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Crack types of spur gear root
Although the emergence of fracture mechanics has only been half a century, with the unremitting efforts of scholars all over
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Overview of cross wedge rolling technology
Cross wedge rolling drives the workpiece to rotate in the opposite direction of the roll through the same rotation of
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Cross wedge rolling process of spiral bevel gear blank
This process is planned to adopt one-time rolling forming. Considering the requirements of cross wedge rolling process on the symmetry
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Precision plastic forming process of automotive driving spiral bevel gear blank
As one of the core parts of the automobile drive axle, the driving spiral bevel gear is easy to be
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Precision plastic forming of driving spiral bevel gear blank
Spiral bevel gear is the most critical part of the transmission system. The service life and vehicle performance of automobile
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Warm precision plastic forming of helical gear
Spiral gear is a key part used in mechanical transmission and power. It has high technical content, wide uses and
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Cold rotary forging process in precision machining of bevel gear
The precision forming of bevel gear by cold rotary forging is an advanced bevel gear processing technology adopted in recent
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Design of concave die for spiral bevel gear centripetal bearing structure
Figure 1 shows the engineering drawing of spiral bevel gear bearing structure female die. The outer diameter of the die
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Design of demoulding die for precision plastic forming of helical gear
After the precision plastic work is completed, the workpiece may be close to the punch or stuck in the die,
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Simulation results and analysis of swing rolling forming of spiral bevel gear
Swing rolling of spiral bevel gear is a processing method in which the blank is continuously and locally loaded by
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Initial conditions of spiral bevel gear simulation
In the swing rolling of spiral bevel gear, there are many factors affecting the forming quality and size of bevel
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Stress intensity factors in the process of compound crack propagation of spur gears
In the process of spur gear crack propagation, the stress intensity factor changes with the crack propagation. Compared with the
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Research trend of root crack of spur gear
At present, simplified models are used in the research of fatigue crack of spur gear tooth root. In these simplified
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Establishment of finite element model of spiral bevel gear
When using rigid viscoplastic finite element method to analyze metal plastic forming, the material meets the following assumptions: (1) ignoring
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Swing rolling of spiral bevel gear
In recent years, some scholars have done a lot of research on the rotary forging process. The rotary forging of
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Simulation results and analysis of closed die forging of spiral bevel gear
Figure 1 shows the equivalent stress distribution diagram of closed die forging of spiral bevel gear. Under four reduction quantities,
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Characteristics of rotary forging process of bevel gear
Due to the characteristics of the rotary forging process of bevel gear, it has the following main advantages: (1) Save
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Closed die forging of spiral bevel gear
1.Establishment of finite element model The finite element model is shown in Figure 1. The forging with gears is formed
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Precision plastic forming demoulding die for spiral bevel gear
Spiral bevel gear is one of the core parts of automobile engine to transmit power. It can transmit large load
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Numerical simulation of die forging of round bar blank of helical cylindrical gear
The blank with lower boss needs to be obtained by large bar cutting, which not only wastes man hours, but
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Realization of helical gear
The normal profile is scanned according to the spiral guide line to generate the helical gear profile surface, and then
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Simulation of compound crack propagation of spur gear
It is necessary to set up the parameters and mechanical model in the crack propagation process of spur gear by
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Numerical simulation of die forging of helical cylindrical gear blank
The blank material is DEFORM-3D material library AISI-4120, the temperature is 850 ℃, the temperature effect in heat conduction and
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Analysis of technological parameters of helical cylindrical gear
Figure 1 shows the helical cylindrical gear in the automobile gearbox. The normal surface modulus M = 2.5mm, the number
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Research status of root crack of spur gear
Most spur gears yield to cyclic load and are widely used in aerospace, wind power generation and other industrial fields.
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Precision plastic forming of helical cylindrical gear
Helical cylindrical gear is an important transmission part widely used in automobile and machinery industry. Its shape is complex, and
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Realization of helical gear
The solid contour is generated by cutting the solid contour as the spiral surface, and then the contour is generated
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Analysis of process parameters and gear parameters in numerical simulation of helical gear
For a long time, for designers, the design or development of a process scheme is basically based on production experience.
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Rotary forging process of bevel gear
Bevel gear swing rolling, namely swing rolling, also known as axial rolling, is a new plastic processing technology gradually and
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Trial production results of spur gear (sun gear)
The combined die is the key component for continuously extruding the external teeth of spur gear. The combined die adopts
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Research on fatigue crack of spur gear and existing problems
With the development of mechanics and computer simulation technology, the research on fatigue crack of spur gear has made great
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Precision forming technology of bevel gear
Bevel gear is widely used in mechanical transmission, especially in automobile transmission mechanism. The traditional bevel gear processing adopts the
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Influence of bevel angle of helical gear
When the module, number of teeth, helix angle and process parameters of helical gear are consistent, three groups of different
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Precision forming technology of bevel gear by cold rotary forging
As a typical transmission part, bevel gear is widely used in many industries, such as aviation, aerospace, automobile, instrument and
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Preparation of blank for spur gear production
① Hot forging blank The material of spur gear in truck wheel reducer is 20CrMnTi. Solid bar is selected as
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Propagation analysis of root crack of spur gear
According to the statistics of scholars, most of the mechanical component failures belong to fatigue failure, accounting for 50% –
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3D parametric geometric modeling of helical gear
In the process of helicall gear design, CAD / CAM / CAE integrated software UG is adopted. Combining the three-dimensional
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Helical angle of helical gear
The difference between helical gear and spur gear is that the teeth of helical gear are distributed along the helix.
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Study on continuous cold extrusion process of spur gear (sun gear)
The cold extrusion precision plastic forming technology of spur gear has the advantages of saving materials, improving production efficiency, ensuring
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Continuous extrusion forming of external teeth of spur gear
The continuous extrusion forming process of the external teeth of the spur gear is the same as that described above.
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Numerical simulation of precision plastic forming of helical gear
(1) The parametric modeling of helical gear is carried out by using three-dimensional modeling software UG. After parametric modeling, helical
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Parameter analysis of helical gear
Through the numerical simulation analysis of the closed die forging of helical gear, the parameters such as temperature, friction factor,
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Helical gear module and tooth number parameters
Due to the formula of indexing circle diameter d = mz, it can be seen that the diameter of the
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Determination of forming process scheme of spur gear
The three forming process schemes will be comprehensively evaluated and analyzed from the three aspects of material utilization, production efficiency
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Analysis of technological parameters of spiral gear
1.Influence of blank temperature The blank temperature of spiral gear is 20 ° C, 450 ° C and 850 °
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Establishment of finite element model of spiral gear
Closed die forging process is a traditional one-step process. Its forming process is simple and convenient for analysis and research.
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Numerical simulation process parameters of helical gear
For a long time, for helical gear designers, the design or development of a process scheme is basically based on
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Co extrusion process of internal and external teeth of spur gear
In order to clearly see the deformation process of inner and outer teeth in the forming process of spur gear
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Generation of end face contour of helical cylindrical gear
All teeth on helical cylindrical gears are the same and have unified characteristics. The normal tooth profile will be generated
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Numerical simulation of precision forming of spur gear
In recent ten years, with the rapid development of computer hardware and software technology and the in-depth study of material
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Forging Compound Forming of spiral bevel gear blank
Taking the forging compound forming process of driving and driven spiral bevel gears as the research object, the feasibility of
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Analysis on forming process of driven gear blank
The main feature of die forging is that the diameter of outer circle and inner hole of automobile rear axle
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Precision plastic forming part of helical gear
The precision plastic forming part of spiral gear has high dimensional accuracy and less machining allowance. It only needs a
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Precision plastic forming of helical gear
At present, the research on precision plastic forming of bevel gear and spur gear has made great progress and has
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Compound forming of spiral bevel gear by casting and forging
Taking a certain type of automobile rear axle spiral bevel gear as the research object, taking the product part drawing
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Forming technology of spiral bevel gear
Y. Qin and R. Balendra used abaques simulation software to study the elastic deformation of the die cavity in the
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Precision forming technology of cylindrical gear
The precision forming technology of cylindrical gear comes from Germany. As early as the 1950s, due to the lack of