Analysis and Optimization on Injection Molding Process of Double Helical Gear Based on Moldflow

2015 ◽  
Vol 1096 ◽  
pp. 376-380
Author(s):  
Chang Yong Jiang ◽  
Hong Lei Shen
Keyword(s):  
Numerical Simulation ◽  
Injection Molding ◽  
Simulation Analysis ◽  
Cooling System ◽  
Process Analysis ◽  
Electrical Equipment ◽  
Helical Gear ◽  
Injection Molding Process ◽  
Feed System ◽  
Molding Process

In view of a kind of a plastic double helical gear in some office electrical equipment, injection molding process analysis was done, by means of Moldflow,to create feed system and cooling system for Moldflow analysis of helical gear, to make numerical simulation analysis, verification and optimization of injection molding process, to obtain some major parameters such as temperature, pressure and time to meet molding requirements of injection molding process of double helical gear.

Finite Element Design and Numerical Simulation on Non-Pneumatic Beehive Damping Tire

2011 ◽  
Vol 291-294 ◽  
pp. 418-422
Author(s):  
Ge Gang Zhu ◽  
Chen Xu ◽  
Long Yi ◽  
Ning Li
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Injection Molding ◽  
Simulation Analysis ◽  
Mold Design ◽  
Molding Process ◽  
Improvement Measures ◽  
Quality Issues

The design and numerical simulation and analysis on non-pneumatic beehive damping tire were discussed in this paper by finite element techniques. And use the molding software filling its experimental to analyze the process of injection molding qualities for the reasonable mold design. And the corresponding improvement measures, the rationality of mold design and molding process were arised for quality issues according to the simulation analysis.

Numerical simulation of thermoplastic wheat starch injection molding process

1998 ◽  
Vol 38 (12) ◽  
pp. 2029-2038 ◽  
Author(s):  
B. Abbégs ◽  
R. Ayad ◽  
J.-C. Prudhomme ◽  
J.-P. Onteniente
Keyword(s):  
Numerical Simulation ◽  
Injection Molding ◽  
Wheat Starch ◽  
Injection Molding Process ◽  
Molding Process

scholarly journals Numerical Simulation on the Penetration Behavior of the Projectile during the Water Injection Stage of Water-Projectile-Assisted Injection Molding Process

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Tangqing Kuang ◽  
Qiang Feng ◽  
Tian Liu ◽  
Luohao Zhong ◽  
Yanqing Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Injection Molding ◽  
Water Injection ◽  
Injection Molding Process ◽  
Molding Process ◽  
Pressure Fields ◽  
Hollow Space ◽  
Pressure Water ◽  
Penetration Behavior ◽  
Strain Rate Field

Water-projectile-assisted injection molding (W-PAIM) is a novel molding process for plastic pipes with complicated shape. It utilizes high-pressure water as a power to push a solid projectile to penetrate through the melt to form a hollow space. In order to investigate the penetration behavior of the projectile during the water injection stage of W-PAIM process, numerical simulation of the water injection stage of a W-PAIM pipe with straight and curved segments was carried out. A turbulent flow for the driving water was considered in the motion equation, and the dynamic mesh technology was used to deal with the moving solid projectile. The simulation results, including RWT and the flow fields, were compared with those of water-assisted injection molding (WAIM) pipe with the same outer dimensions. It was found that the residual wall thickness (RWT) of the W-PAIM pipe is much thinner than that of the WAIM pipe. The projectile has a crucial influence on the RWT. The pressure fields of W-PAIM and WAIM are very similar in both straight and curved segments. The velocity field and strain rate field near the penetration front in W-PAIM are quite different from those in WAIM due to the drag flow caused by the projectile penetration.

scholarly journals Insights into the Processing of Recycled Carbon Fibers via Injection Molding Compounding

2020 ◽  
Vol 4 (4) ◽  
pp. 161
Author(s):  
Jochen Wellekötter ◽  
Julia Resch ◽  
Stephan Baz ◽  
Götz Theo Gresser ◽  
Christian Bonten
Keyword(s):  
Injection Molding ◽  
Matrix Material ◽  
High Strength ◽  
High Volume ◽  
Injection Molding Process ◽  
Fiber Reinforced ◽  
Feed System ◽  
Molding Process ◽  
Reinforced Plastics ◽  
Recycled Fibers

Although fiber-reinforced plastics combine high strength and stiffness with being lightweight, major difficulties arise with high volume production and the return of manufactured parts back into the cycle of materials at the end of their lifecycles. In a novel approach, structural parts were produced from recycled material while utilizing the so-called injection molding compounding process. Recycled fibers and recycled polyamide matrix material were used by blending carbon and matrix fibers into a sliver before processing. Injection molding was then used to produce long fiber-reinforced parts through a direct fiber feed system. Recycled matrix granules were incorporated into the injection molding process by means of an injection molding compounder to investigate their influences on the mechanical properties of the parts. The findings show that the recycled fibers and matrix perform well in standardized tests, although fiber length and fiber content vary significantly and remain below expectations.

Design and Simulation of Injection Mold for the Shell of Switch

2010 ◽  
Author(s):  
Chuanyang Wang ◽  
Shuai Hu ◽  
Qiubo Qian ◽  
Xuanxuan Shen
Keyword(s):  
Simulation Analysis ◽  
Cooling System ◽  
Injection Pressure ◽  
3D Models ◽  
Injection Molding Process ◽  
Injection Mold ◽  
Molding Process ◽  
Development Cycle ◽  
Successful Probability ◽  
Filling Time

The 3D models of gating system, ejection mechanisms and cooling system of the swtich shell for injection mold are designed by using Pro/ENGINEER software. MOLDFLOW is utilized for CAE analysis. Three schemes are obtained by changing the gate location during the injection molding process. After comparing the volume shrinkage during injection, shrink marks index, filling time and the injection pressure, the best scheme is obtained. According to the optimal scheme, the injection mold is designed. The results showed that simulation analysis method can not only improve the successful probability of mold trial, but also shorten the production development cycle of developing product.

Injection Molding Process Parameter Optimization for Warpage Minimization Based on Uniform Design of Experiment

2010 ◽  
Vol 37-38 ◽  
pp. 570-575 ◽  
Author(s):  
Bao Shou Sun ◽  
Zhe Chen ◽  
Bo Qin Gu ◽  
Xiao Diao Huang
Keyword(s):  
Injection Molding ◽  
Design Of Experiment ◽  
Simulation Analysis ◽  
Uniform Design ◽  
Mold Temperature ◽  
Optimization Method ◽  
Processing Parameters ◽  
Injection Molding Process ◽  
Molding Process ◽  
Melt Temperature

To optimize injection molding warpage, this paper applies the uniform design of experiment method to search for the optimal injection molding processing parameters. The warpage. simulation analysis is accomplished by emplying Moldflow software. The melt temperature, mold temperature, injection time and packing pressure are regarded as processing parameters, and processing parameters are optimized through establishing a regression equation, and the optimization result and influence factors are analyzed. The results show that uniform design of experiment can reduce number of experiments used effectively and the quality of the product is greatly improved by the optimization method.

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