Cutting angle of helical gear turning gear
Select a point m on the cutting edge of helical gear turning tool, and establish the reference plane of tool […]
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Spheroidizing annealing results of 16MnCrS5 steel for cold forged gears
Reduction of area and elongation are one of the key parameters of material plasticity. As shown in the figure, the […]
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Spheroidizing annealing test results of 16MnCrS5 steel for cold forged gears
After the spheroidizing annealing treatment of four processes, the SEM analysis results of each structure are shown in Figure 1. […]
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Spheroidizing annealing test of 16MnCrS5 steel for cold forged gears
The chemical composition of 16MnCrS5 steel for cold forged gear used in the test is shown in Table 1, and […]
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Mixed lubrication model of spiral bevel gear
The point contact problem of conjugate surface of spiral bevel gear can be represented by the elliptical contact model shown […]
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Structural design of helical cylindrical gear turning cutter
The structure of the gear turning cutter is similar to that of the helical cylindrical gear. The three-dimensional shape of […]
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Cutting speed of bevel gear
Bevel gear turning gear is a continuous generation method based on the meshing principle of spatial staggered shaft gear. When […]
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Induction annealing process of driving spiral bevel gear
First, a limit tooling is added to the simple induction positioning tooling, that is, the welding limit bolt is used […]
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Coordinate system of bevel gear turning
Bevel gear turning gear can be regarded as the combination of hobbing and shaper. In the machining process, the tool […]
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Contact analysis of spiral bevel gear
In order to analyze the lubrication characteristics of spiral bevel gears, it is necessary to analyze the contact of spiral […]
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Induction annealing technology of driving spiral bevel gear
According to the above optimization results, after technical communication with the customer and approval, the technical requirements for adjusting the […]
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Induction annealing of driving spiral bevel gear
The supplier has a solid-state heating equipment with a water temperature of ± 10.38 ~ 30 kHz and a water […]
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Simulation of tractor gear machining process
With the continuous progress of agricultural mechanization, a large number of heavy tractors are used in the process of agricultural […]
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Influence of different positions of initial cracks on fatigue life of spur gears
Previously, we used the joint simulation method of ANSYS and FRANC3D to carry out the static analysis of the root […]
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Processing technology and precautions of gear shaft tooth profile
In order to ensure the machining accuracy of involute profile of gear shaft, milling must be carried out in strict […]
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Failure analysis of bevel gear
1. Sample selection Since the crack source cannot be touched, and the hardness test of bevel gear is about 60HRC, […]
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Bevel gear failure background
Processing flow of bevel gear: blanking → finishing → grinding → carburizing and quenching → cleaning → tempering. Later, it […]
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Determination of cutting force of cylindrical gear with variable hyperbolic arc tooth profile
Because there are many and complex influencing factors in the milling process, there is no theoretical formula to directly calculate […]
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Large spur gear NC machining machine
After heat treatment, the large spur gear blank enters the processing stage. Before this link is officially carried out, it […]
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Forging billet and heat treatment of large helical gear
Forging blank is the first link in the processing and manufacturing of large helical gears. The main work is to […]
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NC forming technology of large gear machining
Large gears generally refer to gears with gear modulus > 16 mm, which are widely used in heavy machinery such […]
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Processing technology of tractor gear based on ant colony algorithm
In tractor gear processing, the commonly used tools include tractor gear type tools and rack type tools. In the process […]
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Forming of blank cone of driving spiral bevel gear
By analyzing the vertical forging process, it can be found that there are three stages from the beginning to the […]
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Stress intensity factors in crack propagation of spur gears
Considering the symmetry of teeth in spur gears, in order to reduce the amount of calculation, one single tooth is […]
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Trial manufacture of MIM process for equidistant spiral bevel gear
1. 3D model of equidistant spiral bevel gear According to the actual use and the characteristics of the gear, with […]
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Establishment of finite element model of equidistant spiral bevel gear
Considering the practical engineering application and the material library of Moldex3D simulation software, this paper uses alloy powder as metal […]
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High precision machining of gear shaft journal with large length diameter ratio
In order to reduce the dimensional error caused by the cutting tool, carry out multiple trial cuts before finishing, master […]
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Machining method of gear shaft tooth profile with modulus of 65mm
The machining method of gear shaft tooth profile with modulus of 65mm is not exactly the same as that of […]
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Verification of gravity state of cylindrical gear machine tool with variable hyperbolic arc tooth profile
The gear processing indexing mechanism device is designed on the special machine tool for variable hyperbolic arc tooth line cylindrical […]
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Machining of long and deep hole of gear shaft with large length diameter ratio
For the deep hole machining of slender shaft, the key point is the concentricity between the hole and the outer […]
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Prediction of fatigue life of spur gears
Within the range of elastic mechanics, Paris gives the fatigue crack growth rate of spur gear expressed by the formula, […]
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Design of gear shaft profile milling cutter with modulus of 65mm
According to the connection mode between the tool and the shank used by our company, the tool structure is designed […]
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Machining of tooth profile of large module gear shaft
The gear shaft with modulus of 65mm (see Figure) is one of the key parts in the transmission mechanism of […]
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Finite element analysis of cylindrical gear with variable hyperbolic arc tooth profile
In the finite element analysis of the whole machine, the contact between parts has a great impact on the analysis […]
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Comparative analysis of stress field between cold extrusion and hot extrusion of spiral bevel gear blank
It can be seen from Fig. 1 that the stress distribution near the bevel of the extrusion die is also […]
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Structure of cylindrical gear machine tool with variable hyperbolic arc tooth profile
In finite element analysis, the solution efficiency is low and the time cost is greatly increased because the machine tool […]
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Manufacturing and forming principle of cylindrical gear with variable hyperbolic arc tooth profile
The special machine tool for variable hyperbolic arc tooth line cylindrical gear is designed based on the principle of spatial […]
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Comparison of heat treatment defects of cast steel large gears
Heat treatment is not only a heating and cooling process of workpiece, but also a process of stress generation and […]
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Fatigue crack growth rate of spur gear
Within the scope of on-line elasticity, the theory of fatigue crack growth rate of spur gear is mainly Paris theory. […]
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Metal flow analysis of spiral bevel gear blank
(1) Metal flow field during hot extrusion Figure a ~ C in Figure 1 shows the metal flow state at […]
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Stress, strain and temperature analysis of spiral bevel gear blank
(1) Stress analysis of vertical forging process It can be seen from Figure 1 that the stress at the conical […]
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Analysis of damage value of spiral bevel gear blank
The damage value in deform does not indicate whether there is damage, but the possibility of defects in this part […]
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Folding defect of spiral bevel gear blank
During the rolling process, the rolled piece begins to fold in the wedge section II, and the shaft is rolled […]
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Dimensional error analysis of spiral bevel gear blank
Use the measuring tool in dfeorm post processor to measure the dimensions of each part of the spiral bevel gear […]
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Derivation of calculation formula for compound mode crack propagation rate of spur gear
The fatigue crack growth rate of spur gear is the basis for predicting the crack growth life. Paris formula is […]
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Geometric analysis of spiral bevel gear blank
After the end of the wedge section, the forming of the workpiece is coming to an end, and the parts […]
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Cross wedge rolling closed die forging process for spiral bevel gear blank
The process adopts two processes: first, the rod is rolled by cross wedge rolling, and then the cone head is […]
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Demoulding method of spiral gear forging
The tooth profile of a spiral gear has a helical angle with a certain angle. Therefore, when demoulding the spiral […]
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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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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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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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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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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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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 […]