Parametric modeling of automotive rack and pinion steering gear parts
General products are composed of one or many parts. In order to realize the parametric design of products, we must […]
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Experimental analysis on heat treatment of one speed gear
1. Microstructure analysis of pre heat treatment After ordinary normalizing, the metallographic structure of the first speed gear blank is
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Steel for heavy truck gears
Foreign tests have proved that the supercooled austenite decomposition products during surface quenching of carburized steel are the main reason
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Situation of gear steel for heavy trucks in China
China’s truck gear steel basically follows the brand of the former Soviet Union. For a long time in the past,
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Parameter optimization design of automotive rack and pinion steering gear
This paper introduces automobile steering system and automobile rack and pinion steering gear, then introduces the current situation of automobile
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Comparative test of influence of material hardenability on deformation of truck gear
1. Test purpose Our company adopts high-grade and high-quality zocrmntih steel with 6 bandwidths according to the steel factory standard.
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Truck gear processing technology
1. Introduction to truck gear processing The cold working routes of the three parts are basically the same: forging –
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Development status of rack and pinion steering gear abroad
The steering gears commonly used in modern cars include recirculating ball steering gear, worm crank finger pin steering gear, rack
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Metallurgical quality of steel for truck gear
The metallurgical quality of steel for truck gear has the following requirements: 1.End hardenability At present, the bandwidth control of
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Automobile rack and pinion steering gear
With the continuous development of the automobile industry, enterprises gradually adopt light and fuel-efficient front wheel drive vehicles to replace
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Fracture failure analysis results of aluminum alloy automobile gears
After the above experimental analysis and referring to the metallographic inspection of Automobile Carburized Gears, it can be observed that
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Effect of pre heat treatment on heat treatment deformation of cylindrical gear
The purpose of pre heat treatment is to obtain uniform and fine structure and completely eliminate stress. The pre heat
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Fracture failure inspection of aluminum alloy automobile gear
1. Analysis of fracture morphology of aluminum alloy automobile gear In order to analyze the fracture failure cause of aluminum
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Deformation control of heavy truck cylindrical gear after heat treatment
Taking 9t one speed gear parts as an example, the effects of different pre heat treatment methods on the deformation
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Fracture failure analysis of aluminum alloy automobile gear
Gear is an important part of automobile transmission device, which has the functions of changing movement direction, changing speed and
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Metal flow law of spur gear for truck under different shaping quantities
The tooth surface is reconstructed according to the numerical simulation results under different cold shaping methods. Compared with the other
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Basic research on heat treatment of automotive gear materials
Through gene analysis and basic performance experiment of automobile gear materials, it is very important to master the basic parameters
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Research status of gear friction excitation in China and abroad
For the research of tooth surface friction, more attention is paid to the heating and energy consumption caused by friction,
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Deformation analysis of truck gears before and after control hardenability strip steel
Three typical parts of heavy truck gearbox hc7s-120: first and second speed gear sleeve (representative of thin-walled castings), fourth speed
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Influence of material quality on deformation of truck bevel gear
Material quality is affected by multiple factors. Different origin, smelting methods, quality categories and supply forms of truck bevel gear
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Heat treatment process for controlling gear deformation
The process tests of 9T 34556 speed gear sleeve with different heat treatment methods, different heat treatment process parameters and
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Development of precision forging technology of spiral bevel gear
In 1674, Danish astronomer Romer used the enveloping cycloid as the gear tooth profile to obtain the gear with conjugate
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Pre heat treatment of gear blank of one speed gear
Through the process test of two different pre heat treatments on the deformation law of the parts after final carburizing
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Selection of carburized gear steel for heavy truck
From the above analysis of the service conditions and failure forms of gears, it is proposed that the performance requirements
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Effect of carburizing equipment and process on bevel gear deformation
1. Test purpose Verifying the rationality of bevel gear process is an effective guarantee to reduce the heat treatment deformation
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Comparative test on the influence of pre heat treatment on the deformation of helical cylindrical gear
1. Test purpose Verify the influence of different pre heat treatment methods on the deformation of final carburized helical cylindrical
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Study on deformation of truck cylindrical gear
1. Effect of pre heat treatment on cylindrical gear deformation Before 2010, our company adopted the ordinary normalizing method for
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Main factors affecting heat treatment gear deformation
Among the main factors affecting the gear heat treatment deformation, the only thing that can be improved by the heat
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Development of surface strengthening technology for automotive helical gears
The automotive helical gear transmission system under various complex working conditions makes the surface strengthening technology of automotive helical gear
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Heat treatment production of ZHY Gear truck gear
The gearbox gear of heavy truck is one of the three major products of ZHY Gear. It has been supporting
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Influence of material quality on deformation of truck helical gear
The influence of material quality on the quality of truck helical gear has attracted more and more attention. The unstable
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Effect of cold working on heat treatment deformation of helical gear
The machining method and residual stress of spiral gear will have a certain influence on the deformation of carburized spiral
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Effect of forging on heat treatment deformation of cylindrical gear
Forging can make the forging billet segregation, uniform structure and reduce the banded structure, which is conducive to reducing the
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Metal flow law of spur gear for truck under different cold shaping modes
Figure 1 shows the equivalent stress distribution of spur gear under different cold shaping methods. During full tooth shaping, the
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Influencing factors of heat treatment deformation of heavy truck gears
The deformation of heavy truck gearbox gear after carburizing and quenching is caused by the gear in the process of
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Contact fatigue mechanism and materials of automobile gear tooth surface
The fatigue damage of automobile gear tooth surface is caused by the repeated action of automobile gear on the tensile
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Numerical simulation of precision forging of spiral bevel gear and analysis of velocity field distribution
Through the speed field of precision forging of spiral bevel gear, the flow of metal blank in the forming process
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Research status of helical gear modification in China and abroad
The purpose of gear modification is to make the pressure distribution on the tooth surface as uniform as possible after
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Analysis of the solution result of forging forming force of spiral bevel gear
As shown in the table, the forging deformation force of open die forging and non flash die forging of spiral
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Requirements for heat treatment deformation of heavy truck gears
With the continuous development of China’s automobile industry and national economy year-on-year, the heavy vehicle industry has also entered a
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Summary of precision forging technology of spiral bevel gear
Due to these irreplaceable advantages, spiral bevel gear has been widely used as an important part in the transmission system
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Temperature field analysis of bevel gear during dual frequency induction heating
The dual frequency induction quenching process of bevel gear includes electromagnetic induction heating process and quenching cooling process. The temperature
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Setting of cutting parameters during gear hob
The cutting parameters of gear hob include cutting depth, cutting speed and axial feed. The determination of these parameters should
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Situation of truck gear steel abroad
At the beginning of this century, the German automobile industry used high Ni alloy steel to produce high load truck
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Material selection requirements for heavy truck gears
Heavy truck gear refers to all kinds of gears in the gearbox of heavy truck. The automobile gearbox is located
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Key technology innovation of continuous cold extrusion and cold shaping compound forming of spur gear for truck
① Aiming at the problems of serious tooth tip collapse, low material utilization, low forming accuracy and low die service
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Numerical simulation research and scientific problems of surface strengthening of automotive helical gears
In the field of scientific research and engineering technology, numerical simulation is a basic research method that pays equal attention
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Shot peening strengthening of Automobile Gears
Shot peening is a widely used method to improve the fatigue strength of automobile gears by mechanical means to produce
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Failure form and mechanism of automobile gear
The automobile gear is in the state of continuous load operation. There are both rolling and sliding between the meshing
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Effect of oil on fatigue strength, life and wear of automotive helical gears
Automotive automatic transmission lubricating oil (ATF) not only meets the lubrication of automotive helical gears and bearings, but also undertakes
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Automobile gear surface strengthening technology
With the continuous improvement of automotive gear requirements and the continuous development of automotive gear surface processing engineering technology, the
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Main factors affecting shot peening effect of Automobile Gears
The best effect of shot peening strengthening treatment of automobile gears is affected by the interaction of different conditions. The
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Bending fatigue damage mechanism and materials of Automobile Gears
The strength of automobile gear is mainly the bending fatigue strength and tooth surface contact fatigue strength of gear. Figure
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Chinese and foreign automotive gear materials and gear process parameters
Modulus is an important parameter of gear. When selecting automobile gear modulus, factors such as strength, noise, lightweight and processing
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Surface strengthening technology of high strength automobile gear
Gear is an important part for transmitting power in mechanical devices. The Japanese mechanical society has conducted systematic investigation and
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Establishment of finite element model of spur gear for truck
In previous studies, the ideal model without error is used in the numerical simulation of cold shaping of spur gear.
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Setting of initial conditions for numerical simulation of precision forging of spiral bevel gear
(1) Mold and blank materials can be directly selected from the material library of DEFORM software. The mold material is
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Mesh generation of numerical simulation of precision forging of spiral bevel gear
The mesh generation program of DEFORM-3D can divide the geometry into tetrahedral elements, and its mesh generation methods can be
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Solving forging forming force of spiral bevel gear by empirical formula method
The forging deformation force P of spiral bevel gear is determined by empirical formula: Where: C – shape complexity coefficient
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Advantages of spiral bevel gear compared with straight bevel gear
Spiral bevel gear is the general name of bevel gear whose tooth surface pitch line (the intersection line of tooth