Prediction of Temperature Distributions of Cold Forging Process for a CamBolt by FEM

2013 ◽  
Vol 404 ◽  
pp. 207-212
Author(s):  
Dong Bum Kim ◽  
S. Kim ◽  
Jin Gun Park ◽  
Hyuk Soo Shin ◽  
Won Yeong Kim ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Temperature Distribution ◽  
Endurance Limit ◽  
Steering System ◽  
Cold Forging ◽  
Forging Process ◽  
Temperature Distributions ◽  
A New Technique ◽  
Element Method

Temperature distributions of cold forging process for a cambolt has been predicted by using finite element method in this paper. The cambolt is used as a part in the steering system of a vehicle for the purpose of driving balanced, so some proper mechanical properties such as strength and endurance limit are required for this part. Moreover, temperature is also an important factor to realize mass production and improve efficiency. However, direct measurement of temperature in a forging process is infeasible with existing technology; therefore, there is a critical need for a new technique. In this study, the thermo-coupled finite element method has been presented for predicting the temperature distribution. The rate of the energy conversion to heat for the material of workpiece has been defined and the temperature distribution throughout the forging process of the cambolt has been analyzed. Experimental verification of the technique is presented.

scholarly journals Application of Numerical Simulation and Physical Modeling for Verifying a Cold Forging Process for Rotary Sleeves

2021 ◽  
Author(s):  
Tomasz Bulzak ◽  
Grzegorz Winiarski ◽  
Łukasz Wójcik ◽  
Mirosław Szala
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Experimental Tests ◽  
Simulation Software ◽  
Cold Forging ◽  
Work Piece ◽  
Geometrical Parameters ◽  
Forging Process ◽  
Forged Parts ◽  
Element Method

AbstractThis paper presents the modeling of a cold forging process for a rotary sleeve. The process of forging a EN 42CrMo4 steel part was first modeled numerically by the finite element method using simulation software DEFORM 3D ver. 11.0. After that, the developed forging process was verified by experimental tests carried out in laboratory conditions with the use of 1:2 scale tools and a material model of aluminum alloy EN AW-6060. Finite element method (FEM) results demonstrated that rotary sleeves could be formed from tubes by cold forging. Results of the experimental tests showed, however, that the material inside the hole of the work piece might not adhere to the surface of the sizing pin. Distributions of strain and stress during the forging process are determined. Geometrical parameters of forged parts obtained in experimental tests are compliant with the dimensions of forged parts simulated by FEM. In addition, experimental forces of the forging process show a high agreement with the forces obtained in FEM simulations.

Finite Element Method for Step Reduction in Forming Socket Head Screws

2012 ◽  
Vol 622-623 ◽  
pp. 107-111
Author(s):  
Somkid Thara ◽  
Kusol Prommul ◽  
Bhadpiroon Sresomroeng ◽  
Jiraporn Sripraserd
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Flow Line ◽  
Cold Forging ◽  
Forging Process ◽  
Part Quality ◽  
Die Stress ◽  
The Cost ◽  
Forging Force ◽  
Element Method

Nowadays, step reduction in the manufacturing process is an important issue because it reduces both the cost and time. The objective of this research is to reduce the steps used in the cold forging process of a socket head screw from 3 steps (existing design) to 2 steps (new design). The commercial FEM (Finite Element Method) software was used for simulating the values of flow line, forging force and die stress, which were then used to determine part quality and tool life. The results have shown that the simulated values of 2-step design are similar to 3-step design.

Application of FEM Modeling to Simulate Metal Flow in Forging a Titanium Alloy Engine Disk

1983 ◽  
Vol 105 (4) ◽  
pp. 251-258 ◽  
Author(s):  
S. I. Oh ◽  
J. J. Park ◽  
S. Kobayashi ◽  
T. Altan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Titanium Alloy ◽  
Metal Flow ◽  
The Finite Element Method ◽  
Fem Modeling ◽  
Forging Process ◽  
Deformation Mechanics ◽  
Effects Of Temperature ◽  
Element Method

The isothermal forging of a titanium alloy engine disk is analyzed by the rigid-viscoplastic finite element method. Deformation mechanics of the forging process are discussed, based on the solution. The effects of temperature and heat conduction on the forging process are also investigated by coupled thermo-viscoplastic analysis. Since the dual microstructure / property titanium disk can be obtained by controlling strain distribution during forging, the process modeling by the finite element method is especially attractive.

An Influence of Frictional Model on Temperature Distribution during a Friction Spot Stir Welding Process of Titanium Grade 2

2016 ◽  
Vol 687 ◽  
pp. 155-162
Author(s):  
Piotr Lacki ◽  
Zygmunt Kucharczyk ◽  
Tomasz Walasek
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Friction Stir Welding ◽  
Temperature Distribution ◽  
Welding Process ◽  
Relative Speed ◽  
The Finite Element Method ◽  
Friction Stir ◽  
Temperature Distributions ◽  
Titanium Grade

In the paper, the influence of friction on temperature distribution in the friction spot stir welding process of titanium grade 2 is analysed. It is assumed that the friction coefficient may be a function of temperature or the relative speed of the contact areas. The finite element method is used in the numerical calculations. Temperature distributions and temperature versus time for the analysed friction coefficients are presented. The results also show that applying a proper frictional model is very essential for the sake of heat generation during friction stir welding.

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