Bevel gear failure background
Processing flow of bevel gear: blanking → finishing → grinding → carburizing and quenching → cleaning → tempering. Later, it […]
Scientific
News
Cracking of bevel gear of mine reducer
18CrNiMo7-6 belongs to low carbon and low alloy carburized steel. It is mainly used to manufacture bevel gears of wind […]
Scientific
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 […]
News
Gear forming method
Two machining schemes commonly used in gear forming method include gear milling and gear grinding. These two schemes have their […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
News
Large spur gear machining based on NC machining
Mechanization not only improves the production efficiency and quality, but also greatly avoids the risks in the production process. The […]
Scientific
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 […]
News
Processing technology of agricultural machinery gear
In recent years, with the continuous development of computer technology, computer simulation has been applied to the design, processing and […]
Scientific
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 […]
News
Precision forming of driving spiral bevel gear blank
By analyzing the metal flow, stress and strain, temperature, die load and damage of the blank in the process of […]
Scientific
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 […]
News
Effect of initial crack location on fatigue life of spur gear
The factors affecting crack growth studied by ZHY gear senior engineer team, such as stress ratio, corrosion environment, crack body […]
Scientific
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 […]
News
MIM technology of equidistant spiral bevel gear
Small module spiral bevel gear is widely used in fields requiring intersecting shaft transmission, such as electric tools, mechanical instruments, […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
News
Processing technology of gear shaft with large length diameter ratio
According to the part characteristics of gear shaft with large aspect ratio, this paper mainly studies the processing process of […]
News
Machining of gear shaft with large aspect ratio
As a universal typical part type in the manufacturing industry, shaft parts have a variety of part characteristics and manufacturing […]
Scientific
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, […]
News
Prediction of fatigue life of spur gears
For the analysis of fatigue crack propagation of spur gears, the calculation of crack propagation life of spur gears is […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
News
Extrusion closed die forging forming of driving spiral bevel gear blank
Although the production efficiency of cross wedge rolling forming active spiral bevel gear blank is very high, the material utilization […]
Scientific
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 […]
News
Two processing techniques and flaw detection of large cast steel gear
Steel casting defects are common. Large gears are steel castings in terms of material, and various defects often appear. Before […]
Scientific
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. […]
News
Three dimensional crack propagation analysis of spur gear root
Spur gears are widely used in electric power, chemical industry, petroleum, aerospace, automobile and other fields. Almost all these spur […]
News
Variable hyperbolic arc tooth profile cylindrical gear machine tool
With the rapid development of modern industry, new requirements are put forward for mechanical transmission devices in the manufacturing field. […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
News
Numerical simulation of precision forming of driving spiral bevel gear blank
(1) For the cross wedge rolling process to form the driving spiral bevel gear blank, can we consider selecting the […]
News
Cross wedge rolling closed die forging forming of driving spiral bevel gear blank
Due to the material head, the material utilization rate is not high and the coaxiality of the product is not […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
News
Compound crack fracture theory of spur gear
The cracks in practical components are often composite cracks composed of two or more cracks. Considering the random combination of […]
Scientific
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 […]
News
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 […]
News
Development of warm precision plastic forming of spiral gears
For the swing rolling forming of spiral bevel gear, the key parameters such as taper of cone die, common angle […]
Scientific
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 […]
News
Cross wedge rolling forming of driving spiral bevel gear blank
The most traditional method of producing driving spiral bevel gear blank in China is pre forging cross forging method, which […]
News
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 […]
Scientific
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 […]
Scientific
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 […]
News
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 […]
Scientific
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 […]
Scientific
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 […]
News
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 […]
News
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 […]