scholarly journals Development of a Three Dimension Filling Analysis Program for Injection Molding Part 2: Realization to Make Degree of Freedom Low by the Application of a Model Mixed with the Phase of Solid-liquid

Seikei-Kakou ◽  
2012 ◽  
Vol 24 (9) ◽  
pp. 551-559
Author(s):  
Yuji Okada ◽  
Ryo Nakano ◽  
Masahiro Seto ◽  
Masashi Yamabe
Keyword(s):  
Injection Molding ◽  
Degree Of Freedom ◽  
Three Dimension ◽  
Analysis Program ◽  
Filling Analysis ◽  
Solid Liquid

Research of Virtual Machining Technology of Laser Processing Robot with Multi-Degree of Freedom

2010 ◽  
Vol 43 ◽  
pp. 657-661
Author(s):  
Feng Dong ◽  
Wen Yuan He ◽  
Jun Gu
Keyword(s):  
Laser Processing ◽  
Simulation Software ◽  
Degree Of Freedom ◽  
System Structure ◽  
Three Dimension ◽  
Robot System ◽  
Virtual Machining ◽  
Robot Arms ◽  
Software Interface ◽  
Working Space

To reduce the development cost of the laser processing Robot system and improve its machining procductivity, the virtual machining technology of laser processing Robot with Multi-DOF(degree of freedom) is developed in this paper. The whole virtual system structure is designed. In the first stage the MATLAB-GUI (graphical user interface) technology is applied to design the simulation software to simulate the motion of the multi-DOF robot arms in three-dimension by setting the relevant parameters through the software interface. Fruther more, another important function is the inspection of the working space of robot arms, which can be used to determine whether there are any empty spaces or cavities that the robot arms cannot arrive.

Dynamic Characteristics Analysis of an Escalator Using the Computational Dynamics Program

1998 ◽  
Author(s):  
Yi Sug Kwon ◽  
Chan Jong Park
Keyword(s):  
Dynamic Analysis ◽  
Dynamic Characteristics ◽  
Degree Of Freedom ◽  
Analysis Program ◽  
Friction Contact ◽  
Computational Dynamics ◽  
Characteristics Analysis ◽  
Independent Degree ◽  
Multi Body ◽  
Dynamic Characteristics Analysis

Abstract Predicting dynamic characteristics of an escalator by means of the computational dynamic analysis is a meaningful subject, and has not been thoroughly investigated before. The general purposed kinematic and dynamic analysis program, DADS which has been shown to be effective in the dynamic analysis of multi-body, is utilized to analyze the interaction of the escalator to be more than 900 independent degree-of-freedom. Thousands of friction contact elements are applied to correctly simulate impact, permanent contact and temporary contact of rollers and the handrail. The presented model is experimentally verified to substantiate the accuracy and efficacy.

The Cooling Time of Gas Assisted Injection Molding

2011 ◽  
Vol 221 ◽  
pp. 422-428
Author(s):  
Qiu Xiang Bu ◽  
Xiao Zhang ◽  
Hai Ying Chen ◽  
Qing Zhen Yin
Keyword(s):  
Mathematical Model ◽  
Injection Molding ◽  
Wall Thickness ◽  
Cooling Time ◽  
Cooling Process ◽  
Liquid Phases ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
The Mathematical Model ◽  
Plastic Products

The mathematical model of solid-liquid interface is obtained by making an idealized hypothesis for parameters of the cooling process in gas-assisted injection molding, and simplifying the mathematical model. And then the cooling time of plastic products in the process is obtained by using two ways of solving the solid and liquid phases. And verified by example the conclusions that some plastic products of gas-assisted injection molding, when the materials and workmanship conditions are constant, cooling time of the airway is proportional to the square of the wall thickness is obtained.

Analysis and Modifying of Injection-Mold for Notebook Computer Housing by CAE

2010 ◽  
Vol 426-427 ◽  
pp. 568-571
Author(s):  
Bai Liu ◽  
X.J. Liu ◽  
Long Liao ◽  
Y.B. Du
Keyword(s):  
Injection Molding ◽  
Color Variation ◽  
Mold Design ◽  
Injection Mold ◽  
Cooling Period ◽  
Notebook Computer ◽  
Filling Analysis ◽  
Cae Analysis ◽  
Sink Mark ◽  
Application Prospects

In the paper, C-Mold software was applied to the analysis of injecting molding of the notebook computer housing so as to solve the main problems of warpage and injection unbalance of the product. According to the results of filling analysis, the problem has been found out and the mold design has been improved. The described case showed the capability of CAE to find the reasons that cause warpage, duration of cooling period, sink mark, blush, color variation and shrinkage directly or indirectly. Thus, CAE analysis has a wide application prospects in injection molding.

Geometry Influence of Reflectors for Infrared Rapid Heating on Micro-Injection Molding

2006 ◽  
Vol 505-507 ◽  
pp. 1261-1266 ◽  
Author(s):  
Pei Chi Chang ◽  
Sheng Jye Hwang
Keyword(s):  
Injection Molding ◽  
Rapid Heating ◽  
Heating System ◽  
Infrared Emission ◽  
Surface Heating ◽  
Infrared Heating ◽  
Mold Surface ◽  
Three Dimension ◽  
Micro Injection Molding ◽  
Transient Thermal

In this paper, the geometry influence of reflectors for infrared rapid surface heating on micro-injection molding was studied. A three-dimension ray tracing combined with transient thermal simulation was used to evaluate the thermal condition of injection mold surface. Several kinds of reflectors were applied to study the heating ability of the infrared rapid surface heating system. A commercially available optical analysis program, TracePro, was used to simulate the infrared emission to the center of mold surface. Thermal module of a structure analysis software, ANSYS, was used to study the absorption and heat transfer of the infrared heating on the mold surface. Then, Taguchi method was adopted to find the close to optimal reflector for rapid surface heating of micro-injection molding.

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