The Effect of Parameter Setting towards the Processing of Hinges Test Samples through Cadmould 3D-F Injection Moulding Simulation

2013 ◽  
Vol 315 ◽  
pp. 171-175 ◽  
Author(s):  
Mohd Hilmi Othman ◽  
Sulaiman Hasan ◽  
Suriati Rasli
Keyword(s):  
Process Parameters ◽  
Wall Temperature ◽  
Injection Moulding ◽  
Simulation Software ◽  
Cooling Time ◽  
Parameter Setting ◽  
Filling Time ◽  
Verification Test ◽  
The Impact

The objective of this study is to analyze the main parameter setting in injection moulding that influenced the processing of selected thermoplastics components. The test sample used for this project was a hinge made from Polypropylene (PP). This sample was being utilised to analyse the parameters affecting the quality of plastic products, which were warpage and shrinkage. Computer-Aided Engineering (CAE) was applied through CadMould 3D-F simulation software. The processing parameters such as filling time, melt temperature, wall temperature and cooling time were selected to determine the quality of the product. By adopting Taguchi Method, the orthogonal array, Signal-to-Noise (S/N) ratio and Analysis of Variance (ANOVA) were used to find the optimum levels as well as to indicate the impact of the process parameters on warpage and shrinkage. The verification test was also performed to prove the effectiveness of Taguchi technique after the optimum levels of process parameters. The ANOVA results show that cooling time and wall temperature are found to be the most significant factors for shrinkage and warpage, with the contribution of 66.96% and 56.82% respectively. The verification test with the optimal settings shows that warpage were improved by about 0.4% and shrinkage with 4.2% improvement. These findings are useful for production engineer to determine optimal parameter during performing injection moulding on hinges products.

A Study of Injection Moulding Optimum Parameters to Control Shrinkage and Warpage of Polypropylene-Nanoclay Hinges Samples

2013 ◽  
Vol 465-466 ◽  
pp. 1011-1015 ◽  
Author(s):  
Wan Nur Azrina Wan Muhammad ◽  
Mohd Hilmi Othman ◽  
Sulaiman Hasan ◽  
Muhammad Faiz Ruslee
Keyword(s):  
Mass Production ◽  
Injection Moulding ◽  
Complex Geometry ◽  
Signal To Noise Ratio ◽  
Parameter Setting ◽  
Melt Temperature ◽  
Optimum Parameters ◽  
Packing Pressure ◽  
Filling Time

Injection moulding is one of the most efficient processes in mass production that can easily attain up to complex geometry product within a very short cycle time. To choose a suitable setting of parameter was very crucial, in controlling the quality of product with regard to their function. The main propose of this research is to optimize the injection moulding parameter for controlling the shrinkage and warpage of thermoplastics sample through practical injection moulding. The additional study for this project is to investigate the effect of nanoclay contents towards the parameter setting. In this experiment, the selected parameters were packing pressure; melt temperature, screw speed and filling time. The material that was selected for this project was a mixture of polypropylene and nanoclay with the addition of polypropylene-grafted-maleic anhydride as the compatibilizer. Three formulations were chosen, which was 0 wt%, 3 wt% and 5 wt% of Nanoclay. Each formulation was added with 15 wt% of compatibilizer. The experiment design for this project shall adopt the L943Orthogonal Array of Taguchi Method. By using the Signal to Noise Ratio responses, the optimum parameter for each formulation has been obtained. The findings of this experiment shall be useful for future manufacturing process in order to control shrinkage and warpage specifically for products made from polypropylene-nanoclay.

The Effects of Parameter Settings on Shrinkage and Warpage in Injection Molding through Cadmould 3D-F Simulation and Taguchi Method

2012 ◽  
Vol 229-231 ◽  
pp. 2536-2540 ◽  
Author(s):  
Mohd Hilmi Othman ◽  
Shazarel Shamsudin ◽  
Sulaiman Hasan
Keyword(s):  
Injection Molding ◽  
Process Parameters ◽  
Orthogonal Design ◽  
Simulation Software ◽  
P Value ◽  
Packing Pressure ◽  
Filling Time ◽  
Main Effects ◽  
The Impact ◽  
Taguchi Orthogonal Design

This study is focused on the effects of process parameters in plastic injection molding towards shrinkage and warpage problem of High Density Polyethylene (HDPE) specimen. The aim was to identify the main effects of different process parameters on warpage and shrinkage defects via numerical simulation software and experimental validation. Series of simulations were carried out using Cadmould 3D-F in order to utilize the combination of process parameters based on three level of L9 Taguchi orthogonal design. The Signal to Noise (S/N) ratio and the Analysis of Variance (ANOVA) were used to optimize the levels and to point out the impact of the process parameters on warpage and shrinkage. From the results, it showed that the most affected parameter on the warpage and shrinkage is packing time, with the P value of 48.93%, followed by melting temperature with 40.58%. The filling time and packing pressure were not a significant factor because they only contribute 7.30% and 3.19% of P value, respectively.

scholarly journals Effects of Process Parameters on the Color Quality of Anthocyanin-Based Colorants from Conventional and Microwave-Assisted Aqueous Extraction of Sweet Potato (Ipomoea batatas L.) Leaf Varieties

Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 103
Author(s):  
Jin Mark D. G. Pagulayan ◽  
Aprille Suzette V. Mendoza ◽  
Fredelyn S. Gascon ◽  
Jan Carlo C. Aningat ◽  
Abigail S. Rustia ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Process Parameters ◽  
Ipomoea Batatas ◽  
Extraction Methods ◽  
Aqueous Extraction ◽  
Potato Leaf ◽  
Microwave Assisted ◽  
Color Quality ◽  
The Impact

The study aimed to evaluate the effects of process parameters (time and raw material weight (RMW)) of conventional (boiling for 10–45 min) and microwave-assisted (2–8 min) aqueous extraction on the color quality (i.e., lightness (L*), chroma (C*), and hue (H°) of anthocyanin –based colorants of red and Inubi sweet potato (Ipomoea batatas L.) leaves. Using response surface methodology, it was found that RMW and boiling time (BT) and microwave time (MT) generally had a significant (p < 0.05) effect on the color quality of the extract from both extraction methods. The effects were found to vary depending on the extraction method and variety of the leaves used. Both extraction methods produced a brown to brick-red extract from the Inubi variety that turned red-violet to pink when acidified. The red sweet potato leaves produced a deep violet colored extract that also turned red-violet when acidified. It is recommended that the anthocyanin content of the extracts be measured to validate the impact of the methods on the active agent. Nevertheless, the outcomes in this study may serve as baseline data for further studies on the potential of sweet potato leaf colorants (SPLC) as a colorant with functional properties.

Runner Balance Design of Soap Box Compounding Cavity Based on Moldflow

2014 ◽  
Vol 941-944 ◽  
pp. 1678-1681
Author(s):  
Hong Bing Wang ◽  
Zhi Rong Li ◽  
Chun Hua Sun ◽  
Yi Ping Zhang
Keyword(s):  
Three Dimensional ◽  
Simulation Software ◽  
Injection Mold ◽  
Balance Design ◽  
Filling Time ◽  
Critical Defect ◽  
Filling Analysis ◽  
Different Dimensions ◽  
Moldflow Simulation

Filling unbalance is a critical defect for injection mould. When the upper and lower covers of soap plastic box are produced by injection mold at the same time, filling unbalance in injection would appear because of the different dimensions of the two parts. For advancing the quality of the soap plastic box, the runner system is optimized with the filling analysis module and flow runner balance module of moldflow simulation software. The three-dimensional geometrical models of the two covers are constructed using Pro/e software. In moldflow the runner balance optimization of the soap box compounding cavity is analysis. The results indicate the optimized cross section of the runners can reduce the flow unbalance ratio from 3.38% to 0.73%, and the filling time and pressure can satisfy the demands. According to the analysis results moldflow is appropriate for runner balance design of the plastic products.

Numerical Simulation and Parameter Optimization on Forming Process of Automobile Torque Box

2014 ◽  
Vol 722 ◽  
pp. 140-146
Author(s):  
Wen Juan Zhang ◽  
Long Wu ◽  
Gang Chen
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Parameter Optimization ◽  
Process Parameters ◽  
Fem Simulation ◽  
Simulation Software ◽  
Drawing Process ◽  
Forming Process ◽  
Element Simulation

In this paper the drawing process of Box-torque was simulated by Dynaform, which is FEM simulation software. The process parameters, which affected the quality of forming, were optimized by finite element simulation. The emphasis was focus on the optimization of draw-bead and BHF and data were summarized from the optimization graphs. In this simulation, lengthways draw-bead was set on the technical face for reducing or eliminating wrinkle. It was innovation difference from the usual that the draw-bead was set on binder. Finally the correctness of simulation was approved by comparing the optimization of simulation with the data of experimentation.

Study on the Process Parameters of MPAW-Based Rapid Prototyping

2007 ◽  
Vol 353-358 ◽  
pp. 1931-1934
Author(s):  
Wurikaixi Aiyiti ◽  
Wan Hua Zhao ◽  
Yi Ping Tang ◽  
Bing Heng Lu
Keyword(s):  
Rapid Prototyping ◽  
Process Parameters ◽  
Gas Flow ◽  
Scanning Speed ◽  
Part Quality ◽  
R Ratio ◽  
Feeding Speed ◽  
Wire Feeding ◽  
The Impact

A direct metal RP (rapid prototyping) process based on micro-plasma arc welding (MPAW) is presented. The impact of R (ratio of width to height of the deposited track’s cross-section) on part quality is investigated. Taguchi method is adopted to analyze the effect of each process parameter on R, and the optimized process parameters are obtained. The results show that the quality of the parts with larger R is better than that with smaller R, and the peak current, duty cycle of pulse duration, wire-feeding speed, scanning speed and plasma gas flow rate all exert significant effects on R. The overlapped surface smoothness, tensile strength and elongation of the parts fabricated with optimized parameters are measured to show obviously better performances than those of the parts fabricated with ordinary process parameters.

scholarly journals Design of an Experimental Injection Moulding Tool for Testing Microstructured Cavity Surfaces

2021 ◽  
Vol 4 (2) ◽  
pp. 97-102
Author(s):  
Krisztián Kun
Keyword(s):  
Injection Moulding ◽  
Uniform Structure ◽  
Cavity Surface ◽  
Moulding Process ◽  
Injection Moulding Process ◽  
Tool Surface ◽  
Degree Of Orientation ◽  
High Degree ◽  
The Impact

Abstract This research is based on the impact assessment of the active element of injection moulding tools. The quality of the tool surface has a significant effect on the filling and cooling efficiency. Our goal is to create a uniform structure on the cavity’s surface that results in a high degree of orientation during the injection moulding process. A special experimental tool is needed for the research. Our design was based on the results of previous experimental research and preliminary criteria. The design was based on the size and position tolerances of the A side of the tool. As the previous study has shown, there are three main points to consider when designing an experimental moulding tool. These are the applied manufacturing technology, Design for Assembly, and the expansion of the measurement possibilities by using different sensors. The small beam size of the femtosecond laser also allows the machining of microscopic-sized details, a technology used to structure the cavity surface. The success of this was analyzed by microscopic examination.

The Influence of the Weld Line and the Selection of Mold Gate Location

2016 ◽  
Vol 693 ◽  
pp. 952-958
Author(s):  
Guo Yi Guo
Keyword(s):  
Injection Molding ◽  
Great Influence ◽  
Weld Line ◽  
Simulation Software ◽  
Location Selection ◽  
Gate Location ◽  
Products Analysis ◽  
Important Position ◽  
The Impact

Through injection molding simulation software and examples of injection,This paper analyzes the causes of the weld line when injection molding products, the impact on the quality of products, analysis of the injection mold gate location selection problems and defects produced by principle, think weld line has a great influence on the quality of injection molding, on this basis, put forward in view of the weld line, the influence of the mold gate location selection method in the practical work of is: reasonable choose the location of the gate, to control the degree of weld line, as far as possible to reduce the number of the weld line, or make them produce not important position in the mold. Etc.

The impact of process parameters on test specimen deviations and their correlation with AE signals captured during the injection moulding cycle

2013 ◽  
Vol 32 (3) ◽  
pp. 583-593 ◽  
Author(s):  
Dragan Kusić ◽  
Tomaž Kek ◽  
Janez Marko Slabe ◽  
Rajko Svečko ◽  
Janez Grum
Keyword(s):  
Process Parameters ◽  
Injection Moulding ◽  
Test Specimen ◽  
The Impact ◽  
Ae Signals

The Key Factor Research in Automobile Covering Mechanical Manufacturing Process

2012 ◽  
Vol 548 ◽  
pp. 566-570
Author(s):  
Xin Jie Zhang ◽  
Jian Qiang Zhou
Keyword(s):  
Production Process ◽  
Process Parameters ◽  
Manufacturing Process ◽  
Fem Simulation ◽  
Simulation Software ◽  
Friction Condition ◽  
Key Factor

The influence rules of the different parameters on automotive covering stamping forming and springback, such as blank-hold force、friction condition、draw-bead is studied using the FEM simulation software DYNAFORM combined with the elastic and plastic FEM. In practical production process, through reasonable setting of process parameters, the springback is effectively controlled, the quality of the products is improved.

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