Numerical Simulation of the Influence of Technological Parameters on Rolling Characteristics of 17% SiCp/2009Al Composites

2020 ◽  
Vol 101 (4) ◽  
pp. 693-702
Author(s):  
Ming Li ◽  
Li Zhou ◽  
Weiwei Wang ◽  
Kuanyu Liu ◽  
Xinsheng Yang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Technological Parameters

Modelling and numerical simulation of thick sheet double slitting process using continuum damage mechanics

2014 ◽  
Vol 23 (8) ◽  
pp. 1150-1167 ◽  
Author(s):  
Yosr Ghozzi ◽  
Carl Labergere ◽  
Khemais Saanouni ◽  
Anthony Parrico
Keyword(s):  
Numerical Simulation ◽  
Constitutive Equations ◽  
Damage Mechanics ◽  
Continuum Damage Mechanics ◽  
Thick Sheet ◽  
Technological Parameters ◽  
Strongly Coupled ◽  
Mixed Hardening ◽  
Elasto Plasticity ◽  
Fully Coupled

This work concerns the modelling and numerical simulation of specific thick sheet cutting process using advanced constitutive equations accounting for elasto-plasticity with mixed hardening fully coupled with isotropic ductile damage. First, the complex kinematics of the different tools is modelled with specific boundary conditions. Second, the fully and strongly coupled constitutive equations are summarized and the associated numerical aspects are shortly presented. An inverse material identification procedure is used to determine the convenient values of the material parameters. Finally, the double slitting process is numerically simulated and the influence of the main technological parameters studied focusing on the cutting forces.

Numerical Simulation of Thixoforging of an AZ91D Magnesium Alloy Magazine Plate and Experimental Validation

2008 ◽  
Vol 141-143 ◽  
pp. 623-628 ◽  
Author(s):  
Ju Fu Jiang ◽  
Ying Wang ◽  
Zhi Ming Du ◽  
Shou Jing Luo
Keyword(s):  
Numerical Simulation ◽  
Magnesium Alloy ◽  
Experimental Validation ◽  
Equivalent Strain ◽  
Technological Parameters ◽  
Billet Temperature ◽  
Az91d Magnesium Alloy ◽  
Punch Velocity ◽  
Die Temperature ◽  
Semi Solid

In this paper, thixoforging of a magazine plate made of AZ91D magnesium alloy were investigated by means of numerical simulation and experiments. Numerical simulation results show that with increasing punch displacement, local bending, formation of a concave shell part and bulk plastic deformation occurs in billet continuously. Equivalent strain and stress increase and the temperature of the semi-solid billet decreases. When the temperature of the semi-solid billet or the die temperature is elevated, equivalent stain and stress decrease. Optimal technological parameters such as a billet temperature of 545°C, die temperature of 450°C and punch velocity of 15 mm/s were obtained by numerical simulation. Experimental results demonstrate that magazine plates with high mechanical properties such as tensile strength of 316.8 MPa, yield strength of 228.3 MPa and elongation of 12.6 % can be manufactured successfully when the optimal technological parameters selected according to the results of numerical simulation are applied.

Research Regarding Adaptive Design of Gear Pumps Used for Polymeric Products Engineering

2015 ◽  
Vol 760 ◽  
pp. 601-606
Author(s):  
Constantin Gheorghe OPRAN ◽  
Mircea Pricop ◽  
Constantin Teodoru
Keyword(s):  
Numerical Simulation ◽  
Adaptive Design ◽  
Design Feature ◽  
Gear Pump ◽  
Competitive Advantages ◽  
Molding Machine ◽  
Technological Parameters ◽  
Manufacturing Costs ◽  
Innovative Design ◽  
Gear Pumps

This paper present the results of the researches regarding innovative and adaptive design of gear pumps for engineering of polymeric products with application in production of injection molding machine. It shows the description of gear pump with innovative design and double gear pump – innovative design, highlighting innovative design feature through constructive adaptation depending on requirements, having (30 – 40) % smaller at the axial size, compared to the classic pumps. They highlight the competitive advantages of innovative pumps with superior technological parameters. The paper also shows numerical simulation of technological parameters for pumps in innovative and adaptive variant proving the correctness and the advantages of new variants. Using the innovative variant allows the development a family of gear pumps, single and double, extremely compact, robust, reliable and with low manufacturing costs.

Effect of Technological Parameters on the Profile Extrusion Process

2006 ◽  
Vol 15-17 ◽  
pp. 627-632
Author(s):  
Hong Yan
Keyword(s):  
Numerical Simulation ◽  
Metal Flow ◽  
Extrusion Process ◽  
Extrusion Ratio ◽  
Mean Square ◽  
Mean Square Deviation ◽  
Technological Parameters ◽  
Strain Fields ◽  
Simulation Research ◽  
The Mean

The non-homogeneous metal flow during the extrusion process is well controlled by introducing a reflecting non-equilibrium parameter of metal flow —— the mean-square deviation of velocity ( SDV ) in this paper. The finite deformation elastoplastic finite element method is used to carry out the numerical simulation research on the profile extrusion process with the different extrusion parameters (such as extrusion ratio, frictional factor). The varied laws of the extrusion pressure, SDV and stress-strain fields with the extrusion parameters are obtained. It is a theoretic consideration to optimize the technological parameters in the profile extrusion process.

scholarly journals The Effect of Initial Cooling Temperature on Deformation of U75V Heavy Rail after Cooling

2011 ◽  
Vol 2-3 ◽  
pp. 667-672 ◽  
Author(s):  
Ming Xin Gao ◽  
Hao Jia ◽  
Juan Juan Jiang ◽  
Pei Long Wang ◽  
Hua Song ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
High Speed ◽  
Reference Value ◽  
Cooling Process ◽  
Technological Parameters ◽  
Stress Couple ◽  
Cooling Temperature ◽  
Section Size ◽  
Couple Method ◽  
Heavy Rail

The initial cooling temperature has important effect on the bending change and section size of rolled heavy rail, when rolled heavy rail is on the cooling bed for natural cooling. In the paper, the heat-stress couple method is adopted to carry on numerical simulation to cooling process of 60kg/m U75V heavy rail, and we has obtained the bending change value and section size of rolled heavy rail in different initial cooling temperature. The study is of great reference value on the design of cooling bed which is for hundred-meter high speed heavy rail and the formulation of cooling technological parameters.

Simulation of Molding Flow of Sheet Molding Compound in Complicated Dies

2008 ◽  
Vol 575-578 ◽  
pp. 422-426
Author(s):  
Qi Lin Mei ◽  
Shi Lin Yan ◽  
Zhi Xiong Huang ◽  
Jian Juan Guo
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Control Volume ◽  
Compression Molding ◽  
Technological Parameters ◽  
Molding Compound ◽  
Sheet Molding Compound ◽  
Molding Flow ◽  
Control Volume Finite Element

Based on generalized Hele-Shaw(GHS) model, numerical simulation of compression-molding flow of sheet molding compound (SMC) in complicated dies is realized by control volume/finite element method (CV/FEM). Finite element computing and post analysis programs have been written. The flow fronts of SMC charge during compression molding are tracked, and the time needed of mold filling in complicated dies is predicted. The results of simulation are helpful for the placement of SMC charge, the design of mold and the optimization of technological parameters.

Numerical Simulation in Rear Axlecap of Automobile Drawing Process and Optimization of Technological Parameters

2010 ◽  
Vol 148-149 ◽  
pp. 1171-1176
Author(s):  
Ju Hua Huang ◽  
Li Xian Li ◽  
Ying Ying Wan ◽  
Jun Tuan Guo
Keyword(s):  
Numerical Simulation ◽  
Rear Axle ◽  
Element Model ◽  
Drawing Process ◽  
Work Efficiency ◽  
Technological Parameters ◽  
Simulation Results ◽  
Quality Of Products ◽  
The One

This paper takes the rear axle cap which is a typical automobile covering part as the research object. 3D and finite element model of it are built, and the drawing process is simulated with Dynaform, then the technological parameters are analyzed and optimized based on the simulation results, finally the part is compared with the one that is processed in practice. The results show that this method is easy and feasible, it not only increase the work efficiency greatly but also improve the quality of products.

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