Mechanical Model of Thin-wall Part Elastic Deformation for Interactive Assembling Simulation

2013 ◽  
Vol 49 (09) ◽  
pp. 128 ◽  
Author(s):  
Huanchong CHENG
Keyword(s):  
Elastic Deformation ◽  
Mechanical Model ◽  
Thin Wall ◽  
Thin Wall Part

A Theory of the Calender Effect in Rubberlike Materials

1945 ◽  
Vol 18 (4) ◽  
pp. 772-779 ◽  
Author(s):  
L. Bilmes
Keyword(s):  
Molecular Structure ◽  
Experimental Data ◽  
Plastic Flow ◽  
Elastic Deformation ◽  
Polyvinyl Chloride ◽  
Mechanical Model ◽  
Temperature Dependent ◽  
Yield Values ◽  
Rubberlike Materials

Abstract The facts relating to the calender effected are briefly stated and illustrated by experimental data obtained with calendered plasticized polyvinyl chloride sheet. The nature of rubberlike deformation is outlined. A theory of the calender effect is proposed in terms of a mechanical model whose relation to molecular structure is indicated. The theory postulates that temperature-dependent yield values be associated with the mechanisms of high elastic deformation and plastic flow.

Elastic-Plastic Deformation of Milling Thin Wall Part

2013 ◽  
Vol 345 ◽  
pp. 321-324
Author(s):  
Ai Jun Tang ◽  
Hai Long Ma ◽  
Zhan Qiang Liu
Keyword(s):  
Plastic Deformation ◽  
End Milling ◽  
High Accuracy ◽  
Fe Analysis ◽  
Deformation Model ◽  
Thin Wall ◽  
Deformation Prediction ◽  
Elastic Plastic ◽  
Very High ◽  
Thin Wall Part

Aircraft components are mostly made by aluminum alloy as thin wall types. These parts are usually end milled to required thicknesses and tight tolerances in specific areas. The thin wall parts are difficult to machine because they are easy to vibrate and deformed due to their lower rigidity. This paper proposes a new elastic-plastic deformation model which is suitable for prediction of machining deformations of end milled thin wall parts. The theoretical deformation model is established on the basis of the equations of Von Kármán. The part deformations are simulated using FE analysis and Matlab. The results show that the deformations for the end milling of thin wall parts can be captured with very high accuracy using the proposed elastic-plastic deformation prediction model.

Formability behaviors of 2A12 thin-wall part based on DYNAFORM and stamping experiment

2013 ◽  
Vol 55 ◽  
pp. 591-598 ◽  
Author(s):  
De-Hai Zhang ◽  
Dai-Ping Bai ◽  
Ji-bin Liu ◽  
Zhe Guo ◽  
Cheng Guo
Keyword(s):  
Thin Wall ◽  
Thin Wall Part

Numerical Simulation and Process Analysis for Injection Forming about the Thin-Wall Conical Centrifugal Disc

2014 ◽  
Vol 941-944 ◽  
pp. 2298-2304
Author(s):  
Jian Hua Zhou ◽  
Li Guo Liu ◽  
Xue Ming He
Keyword(s):  
Numerical Simulation ◽  
Mathematical Model ◽  
Glass Fiber ◽  
Fiber Orientation ◽  
Process Analysis ◽  
Centrifugal Separation ◽  
Thin Wall ◽  
Forming Process ◽  
Thin Wall Part

A numerical simulation mathematical model and sloved method about injection forming for thin-wall part was established. Based on it, Simulation of the injection forming process of centrifugal separation disc. Through the simulation of forming process for PA66 and PA66+30%GF two kinds of materials, realized the injection forming for centrifugal separation disc using PA66+30%GF. Through the anisotropy of glass fiber orientation, improve the stiffness and toughness for centrifugal disc.

Tool path optimisation method for large thin-wall part of spacecraft

2017 ◽  
Vol 56 (14) ◽  
pp. 4925-4940 ◽  
Author(s):  
Haichao Wang ◽  
Jie Zhang ◽  
Youlong Lv ◽  
Xiaolong Zhang ◽  
Guoqiang Guo ◽  
...  
Keyword(s):  
Tool Path ◽  
Thin Wall ◽  
Thin Wall Part

Application of Viscous Pressure Forming in Aeronautics and Astronautics

2014 ◽  
Vol 989-994 ◽  
pp. 3306-3309
Author(s):  
Ji Guang Li ◽  
Jie Gang Zhang ◽  
Jing Ping Liu ◽  
Rui Feng Zhao ◽  
Yang Li ◽  
...  
Keyword(s):  
Basic Principle ◽  
High Strength ◽  
Thin Wall ◽  
Forming Process ◽  
Variable Diameter ◽  
Thin Walled ◽  
Viscous Pressure ◽  
Viscous Pressure Forming ◽  
Thin Wall Part ◽  
Super Alloy

Viscous pressure forming (VPF) is a new developed sheet soft-punch forming process in 1900s. The basic principle and characteristics of VPF are described. The applications of VPF technologies of nickel-based super-alloy corrugated thin-walled part, asymmetrical thin-wall part with variable diameter, super-alloy thin-walled part with variable diameters, corrugated thin-walled part with larger diameter and small section are presented. The results show that VPF is suitable for the forming of parts with high strength, low plasticity, super thin-wall and complex shaped.

scholarly journals Dynamic Study of Thin Wall Part Turning

2011 ◽  
Vol 223 ◽  
pp. 591-599 ◽  
Author(s):  
Philippe Lorong ◽  
Arnaud Larue ◽  
Alexis Perez Duarte
Keyword(s):  
Cutting Speed ◽  
Machining Process ◽  
Thin Wall ◽  
Planning Stage ◽  
Cutting Test ◽  
Process Reliability ◽  
Key Factor ◽  
Simulation Parameters ◽  
And Control ◽  
Thin Wall Part

The numerical simulation of machining process is a key factor in the control of parts machining process. Its development aims at improving the process reliability and reduces the time spent during the process planning stage. In this context, we use a specific time domain simulation allowing modeling the dynamics of a thin wall part turning operation. After having introduced the basics of the proposed approach we present a specific cutting test that has been designed to specifically measure and control the dynamics of the part and the cutting conditions of a finishing toolpath. The influences of the cutting speed and damping coefficient on the chatter occurrence are discussed. In order to better control the simulation uses, an analysis of the simulation parameters influences on the simulated results is proposed.

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