Optimization Of Process Parameters In Plastic Injection Molding Machine Using Design Of Experiment Method; A Case Study On Ameze

Abstract

Plastic Injection Molding Is One Of The Most Well-Known Method Of Processing Plastic Materials In To Different Complex Shapes And Sizes. Thermoplastic Materials Have Light Weight, Low Cost, Low Environmental Impact And Easily Reprocessed Due To This Reason, They Are More Preferable In Production Of Different Equipments. The Aim Of This Research Was To Study About Optimization Of Plastic Injection Molding Process Parameters To Reduced Flash And Short Shot Defects On The Plastic Products In Ameze Plastic Factory. The Experimental Investigation Were Carried Out, Using Taguchi Method L27 Orthogonal Array In Minitab17. The Selected Process Parameters Of Plastic Injection Molding Machines Are Melting Temperature, Holding Pressure, Injection Pressure, Injection Speed And Cooling Time. Signalto-Noise (S/N) Ratio And Analysis Of Variance (Anova) Were Used To Find The Optimum Setting And Significant Factors Of Plastic Injection Molding Process. According To The Results, The Optimal Parameter Setting For Minimizing Flash Defect Are Melting Temperature 250??C, Holding Pressure 63mpa, Injection Pressure 84mpa, Injection Speed 70rpm And Cooling Time 45sec And Short Shot Defect Are Melting Temperature 270??C, Holding Pressure 84mpa, Injection Pressure 84mpa, Injection Speed 70rpm And Cooling Time 65sec. The Result Shows That Flash Defect Are Reduced By 7.07% And Short Shot Defect Of Rejection The Finishing Product Reduced By 6%. The Experimental Results Shows Good Conformity To Reduced Flash And Short Shot Defect In Plastic Injection Molding Machine Products In Ameze Plastic Factory.