Analysis on technology and defects of fracture splitting of automobile engine connecting rod

2014 ◽  
Vol 229 (9) ◽  
pp. 1603-1613 ◽  
Author(s):  
Hongyu Yang ◽  
Shuqing Kou ◽  
Wenqiang Gao ◽  
Peng Zhang
Keyword(s):  
Connecting Rod ◽  
Automobile Engine ◽  
Fracture Splitting

Dynamic Co-Simulation of Fracture Splitting Machine for Connecting Rods

2010 ◽  
Vol 20-23 ◽  
pp. 294-298
Author(s):  
Li Ming Zheng ◽  
Shen Hua Yang ◽  
Wen Ming Jin
Keyword(s):  
Hydraulic System ◽  
Manufacturing Industry ◽  
Influence Factors ◽  
Processing Technique ◽  
Connecting Rod ◽  
Working Pressure ◽  
Automobile Engine ◽  
Fracture Splitting ◽  
Simulation Results ◽  
New Processing

The fracture splitting (FS) method is a bran-new processing technique in the automobile engine connecting rod manufacturing industry, FS is one of three pivotal working procedures, and press speed is one of the key influence factors of FS process. In order to realize parameters of press speed and pull cylinder working pressure, dynamic simulation of hydraulic system has been carried out. Simulation results indicated that press speed of pull cylinder was about 130mm/s, which was between 120mm/s and 150mm/s that was not only good for controlling FS quality, but also not leading irrational design of hydraulic system. The working pressure of pull cylinder was between 10MPa and 14MPa, which was suitable for FS processing. The hydraulic system of FS machine can satisfy the basic requirements of connecting rods FS process. This paper has provided reliable theoretic basis for the design of FS machine for connecting rods.

Fracture splitting technology of automobile engine connecting rod

2005 ◽  
Vol 25 (9-10) ◽  
pp. 883-887 ◽  
Author(s):  
Z. Gu ◽  
S. Yang ◽  
S. Ku ◽  
Y. Zhao ◽  
X. Dai
Keyword(s):  
Connecting Rod ◽  
Automobile Engine ◽  
Fracture Splitting

Optimization of the Wrist Pin End of an Automobile Engine Connecting Rod With an Interference Fit

1990 ◽  
Vol 112 (3) ◽  
pp. 406-412 ◽  
Author(s):  
Vijay Sarihan ◽  
Ji Oh Song
Keyword(s):  
Finite Element ◽  
Optimum Design ◽  
Three Dimensional ◽  
Stress Singularity ◽  
Design Strategy ◽  
Structural Components ◽  
Connecting Rod ◽  
Fem Model ◽  
Automobile Engine ◽  
Interference Fit

Current design procedures for complicated three-dimensional structural components with component interactions may not necessarily result in optimum designs. The wrist pin end design of the connecting rod with an interference fit is governed by the stress singularity in the region where the wrist pin breaks contact with the connecting rod. Similar problems occur in a wide variety of structural components which involve interference fits. For a better understanding of the problems associated with obtaining optimum designs for this important class of structural interaction only the design problems associated with the wrist pin end of the rod are addressed in this study. This paper demonstrates a procedure for designing a functional and minimum weight wrist pin end of an automobile engine connecting rod with an interference fit wrist pin. Current procedures for Finite Element Method (FEM) model generation in complicated three-dimensional components are very time consuming especially in the presence of stress singularities. Furthermore the iterative nature of the design process makes the process of developing an optimum design very expensive. This design procedure uses a generic modeler to generate the FEM model based on the values of the design variables. It uses the NASTRAN finite element program for structural analysis. A stress concentration factor approach is used to obtain realistic stresses in the region of the stress singularity. For optimization, the approximate optimization strategy in the COPES/CONMIN program is used to generate an approximate design surface, determine the design sensitivities for constrained function minimization and obtain the optimum design. This proposed design strategy is fully automated and requires only an initial design to generate the optimum design. It does not require analysis code modifications to compute the design sensitivities and requires very few costly NASTRAN analyses. The connecting rod design problem was solved as an eight design variable problem with five constraints. A weight reduction of nearly 27 percent was achieved over an existing design and required only thirteen NASTRAN analyses. It is felt that this design strategy can be effectively used in an engineering environment to generate optimum designs of complicated three-dimensional components.

scholarly journals 509 Investigation of Improved Fracture Splitting Method for Aluminum Alloy Die Casting Connecting Rod

2012 ◽  
Vol 2012.20 (0) ◽  
pp. _509-1_-_509-5_
Author(s):  
Tomoyuki AKITA ◽  
Masahiro KUSAKA ◽  
Masaaki KIMURA ◽  
Koichi KAIZU ◽  
Hironobu KINOSHITA
Keyword(s):  
Aluminum Alloy ◽  
Die Casting ◽  
Splitting Method ◽  
Connecting Rod ◽  
Fracture Splitting

Target detection of automobile engine connecting rod image based on sub-pixel level

2021 ◽  
Author(s):  
Hongjuan Yang ◽  
Decai Meng ◽  
Lei Wang ◽  
Yunchu Zhang ◽  
Jianrong Cao
Keyword(s):  
Target Detection ◽  
Connecting Rod ◽  
Automobile Engine

Study on Machining of Cracking Notches for Automotive Connecting Rod Using WEDM

2010 ◽  
Vol 447-448 ◽  
pp. 228-232
Author(s):  
Yong Jun Tang ◽  
Yuan Bo Li ◽  
Yong Jun Zhang ◽  
Chun Qiang Zhou
Keyword(s):  
Cutting Speed ◽  
Connecting Rod ◽  
Electric Discharge Machine ◽  
Fracture Splitting ◽  
Discharge Machine ◽  
Wire Electric Discharge Machine ◽  
The Cost ◽  
The Relationship ◽  
In Virtue Of ◽  
Splitting Process

In order to resolve the problem of connecting rod notches machining, a new process of WEDM (Wire Electric Discharge Machine) has been presented, and it is greatly possible that expensive laser process can be replaced by WEDM in virtue of its unique advantages. Firstly, process parameters of notch have been analyzed, and project of machining notch using WEDM has been introduced, including measures to achieve good-quality notch. The relationship between cutting speed and power supply parameters has been investigated, and it is discovered that micro-crackle on bottom of notch are greatly effect to fracture splitting process, also new idea of active controlling micro-crackle has been presented. Finally, fracture splitting machining has been carried out. The cost and entrance standard of fracture splitting process are greatly dropped owing to new breakthrough of machining notch using WEDM.

Research on the Fracture Splitting Technology of Connecting Rod Based on Car TSI Engine

2013 ◽  
Vol 791-793 ◽  
pp. 631-634 ◽  
Author(s):  
Tian Ming Liu ◽  
Wen Xu ◽  
Wei Dong Feng
Keyword(s):  
Chemical Composition ◽  
Theoretical Analysis ◽  
Physical Properties ◽  
Comprehensive Analysis ◽  
Process Parameter ◽  
Connecting Rod ◽  
Mechanical And Physical Properties ◽  
Type Fracture ◽  
Fracture Splitting ◽  
New Type

The research of the expanding broken technology of engine connecting rod (also known as the fracture splitting technology) is based on some known factors which effect on connecting rod splitting to make comprehensive analysis on 36MnVS4, the material of connecting rod which is suitable for the fracture splitting technology, it analyses the effect of each chemical composition in steel on mechanical and physical properties, for material steel of new type fracture splitting connecting rod , and makes a theoretical analysis on the fracture splitting technology of the engine connecting rod. Through the analysis and research, a new method to research the fracture splitting of connecting rod is determined, as well as gets some rules to affect process parameter.

scholarly journals DESIGN, ANALYSIS AND COMPARISON OF VARIOUS MATERIALS FOR CONNECTING ROD

2020 ◽  
pp. 53-61
Author(s):  
Sumant R Balli ◽  
Prajwal Shetty ◽  
S.C.Sajjan
Keyword(s):  
Titanium Alloy ◽  
Magnesium Alloy ◽  
Aluminium Alloy ◽  
Aluminium Alloys ◽  
3D Model ◽  
Connecting Rod ◽  
Automobile Engine ◽  
Ansys Apdl ◽  
Engine Component ◽  
Alloy Titanium

Connecting rod is engine component which transmits motion from piston to the crankshaft and serves as lever arm. The function of connecting rod is to convert piston’s reciprocal movement into rotary motion of the crankshaft. Connecting rod generally made from Carbon steel and Aluminium alloys have been used in recent days and some different materials are finding it’s application. The performance connecting rod in automobile engine is influenced by it’s design and weight for production of durable, cheaper and light connecting rod, hence optimization and analysis of connecting rod. The 3D model of connecting rod is designed and developed using CATIA V5. In proposed approach different materials compared like Aluminium alloy 7075, Magnesium alloy, Titanium alloys (Ti -3Al- 2.5V) and beryllium alloy (25) are taken for the analysis of connecting rod and factors like Stress, Strain and Deformation were obtained. The purpose of this study is identify best materials for connecting rod, after analysing at ANSYS APDL 15.0. KEYWORDS : Connecting rod, CATIA V5, ANSYS APDL15.0, Aluminium alloy 7075, Magnesium alloy, Titanium alloy (Ti-3Al-2.5V) and Beryllium Alloy (25).

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