Investigation of Plastic Injecting Moulding Process Optimization in Complex Shape Product

2014 ◽  
Vol 695 ◽  
pp. 260-264
Author(s):  
Ahmad Aizuddin Bin Abd Aziz ◽  
Shamsuddin Sulaiman ◽  
Aung Lwin Moe ◽  
Aminudin bin Abu
Keyword(s):  
Injection Molding ◽  
Process Optimization ◽  
Process Parameters ◽  
Plastic Injection Molding ◽  
Injection Molding Process ◽  
Molding Process ◽  
Moulding Process ◽  
Injection Moulding Process ◽  
Result Show ◽  
Plastic Injection

Nowadays, plastic injection molding is widely used in the production of very complex parts and it enables to produce numerous parts within one cycle. Molding conditions or process parameters are crucial for productivity and quality of desired products. This research aims to investigate the state-of-the-art approach to find optimal parameters characteristics in plastic injection molding process. Fill time, average velocity, pressure, clamp force, cooling time and volumetric shrinkages are selected as process parameters in this research. Nokia 6680 model is used for revealing process optimization. Two case studies based on two plates and three plate moulding layout are conducted to suggest the plastic injection mold optimization process. The process parameters of two proposed layouts are compared based on Mold flow Plastics Insight (MPI) analysis results. Result show that three plate moulding satisfy not only the process quality but also the product quality characteristics in this injection moulding process.

scholarly journals ANALYSIS ON VOLUMETRIC SHRINKAGE OF PLASTIC FOOD CONTAINER MADE FROM AN INJECTION MOLDING PROCESS

2020 ◽  
Vol 8 (2) ◽  
pp. 22-31
Author(s):  
Rosidah Jaafar ◽  
◽  
Hambali Arep ◽  
Effendi Mohamad ◽  
Jeefferie Abd Razak ◽  
...  
Keyword(s):  
Injection Molding ◽  
Process Parameters ◽  
Food Packaging ◽  
Plastic Injection Molding ◽  
Volumetric Shrinkage ◽  
Injection Molding Process ◽  
Molding Process ◽  
Melt Temperature ◽  
Plastic Injection

The plastic injection molding process is one of the widely used of the manufacturing process to manufacture the plastic product with high productivity. Moreover, the food packaging manufacturing industry undergoes the trials and errors to obtain the optimal setting of the process parameters in order to minimize the quality issues and these trials and errors are time consuming and costly. The aim of this study is to improve the quality of the butter tub by minimizing the volumetric shrinkage. This study is to deal with the application of Moldflow integrating with the statistical technique to minimize the volumetric shrinkage the butter tub which depends on the process parameters of the plastic injection molding. For this purpose, the rectangular shape of butter tub is designed by utilizing the SolidWorks. Molflow is used to simulate the plastic filling of the single cavity mold of butter tub based on the Taguchi’s �!" orthogonal array table. In addition, the analysis of variance (ANOVA) is applied to investigate significant impact of the process parameters on the quality of the butter tub. Minitab is used to optimize the response of the volumetric shrinkage by selecting the most appropriate process parameters that maximizing the desirability value. Furthermore, the butter tub has a uniform thickness which was 1.2 mm and its factor of safety was 3.383 and the volumetric shrinkage response have optimized by 0.956 %. The melt temperature and mold temperature are found to be the most significant process parameters for the plastic injection molding process of butter tub and the volumetric shrinkage value obtained from the simulation is verified by the calculated volumetric shrinkage value.

A Plastic Injection Molding Process Characterization Using Experimental Design Technique: A Case Study

2012 ◽  
Author(s):  
Shaik Mohamed Mohamed Yusoff ◽  
Jafri Mohd. Rohani ◽  
Wan Harun Wan Hamid ◽  
Edly Ramly
Keyword(s):  
Regression Analysis ◽  
Injection Molding ◽  
Process Parameters ◽  
Rotation Speed ◽  
Plastic Injection Molding ◽  
Injection Molding Process ◽  
Molding Process ◽  
Significant Process ◽  
Short Shot ◽  
Plastic Injection

Kertas kerja ini mengillustrasikan applikasi reka bentuk eksperimen dalam industri pemprosesan suntikan plastik untuk salah satu komponen penyaman udara. Objektif utama reka bentuk eksperimen ini ialah untuk mengenal pasti parameter mesin suntikan plastik dan seterusnya menentukan paras optima mesin yang mempengaruhi karekteristik output, iaitu short–shot. Reka bentuk factorial penuh telah dipilih untuk kajian ini dengan mengenal pasti lima mesin parameter, iaitu backpressure, screw rotation speed, spear temperature, monifold temperature, dan holding pressure transfer. Keputusan kajian telah dapat mengenal pasti mesin parameter yang mempengaruhi karekteristik output dan mesin parameter signifikasi tersebut telah dianalisa melalui model regrasi. Kata kunci: Reka bentuk eksperimen, mesin suntikan plastik, analisa varian, analisa regrasi This paper illustrates an application of design of experimental (DOE) approach in an industrial setting for identifying the critical factors affecting a plastic injection molding process of a certain component for aircond assembly. A critical to quality (CTQ) of interest is reducing process defects, namely short–shot. A full factorial design was employed to study simultaneously the effect of five injection molding process parameters. The five process parameters are backpressure, screw rotation speed, spear temperature, manifold temperature, and holding pressure transfer. Finally, the significant process parameters influencing the short–shot defect have been found. Empirical relationship between CTQ and the significant process parameters were formulated using regression analysis. Key words: Design of experiments, injection molding, analysis of variance (ANOVA), regression analysis

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