Numerical simulation and experimental validation of residual stress induced constrained shrinkage of injection molded parts

Polimery ◽  
2008 ◽  
Vol 53 (04) ◽  
pp. 304-310 ◽  
Author(s):  
TAHER AZDAST ◽  
AMIR HOSSEIN BEHRAVESH ◽  
KIUMARS MAZAHERI ◽  
MOHAMMAD MEHDI DARVISHI
Keyword(s):  
Numerical Simulation ◽  
Residual Stress ◽  
Experimental Validation ◽  
Molded Parts ◽  
Injection Molded

scholarly journals Spontaneous buckling of thin-walled injection-molded parts

Mechanik ◽  
2019 ◽  
Vol 92 (1) ◽  
pp. 7-9
Author(s):  
Przemysław Poszwa ◽  
Paweł Brzęk ◽  
Wiktor Hoffmann
Keyword(s):  
Numerical Simulation ◽  
Experimental Validation ◽  
Industrial Applications ◽  
Theoretical Background ◽  
Wide Range ◽  
Molded Parts ◽  
Injection Molded ◽  
Thin Walled ◽  
Plastic Parts ◽  
Injection Molded Plastic

Injection molding technology has a wide range of industrial applications, especially in packaging and casing production. In this paper the spontaneous buckling of thin-walled injection molded plastic parts was described. Theoretical background along with numerical simulation and experimental validation of this phenomenon were presented.

scholarly journals Surface strengthening of injection molded parts by applying a thermal insulation film

RSC Advances ◽  
2017 ◽  
Vol 7 (23) ◽  
pp. 14302-14308 ◽  
Author(s):  
Hwa Jin Oh ◽  
Young Seok Song
Keyword(s):  
Residual Stress ◽  
Thermal Insulation ◽  
Compressive Residual Stress ◽  
Surface Strengthening ◽  
Molded Parts ◽  
Injection Molded

The main objective of this study is to strengthen the surface of injection molded parts by building up the compressive residual stress at the surface of the product.

scholarly journals Study about the technique of determining residual stress of loading measuring method

2021 ◽  
Vol 13 (5) ◽  
pp. 168781402110169
Author(s):  
Liu Hong ◽  
Jiang Zheqi ◽  
Pan Danqi
Keyword(s):  
Residual Stress ◽  
Nondestructive Test ◽  
Measuring Method ◽  
Test Method ◽  
Hole Drilling ◽  
Hole Drilling Method ◽  
Molded Part ◽  
Molded Parts ◽  
Injection Molded ◽  
A New Technique

Nondestructive test method for residual stress in a structural member is always an important research subject, as a new technique for measuring residual stress loading measuring method needs to consummate for the convenience of engineering. The paper proves that nondestructive test loading measuring method is effective and accurate when compared with the result from hole-drilling method. Taking the measurement of residual stress of injection-molded part in automotive lamp as example, the residual stresses in the surface of injection-molded parts of automotive lamp measured by the two methods are very close based on the two measuring results. It shows that loading measuring method, a new method is used to measure the residual stress, has enough accuracy and credibility when it is used to measure the residual stress of complicated injection-molded part. It provides a basis for popularization and application of loading measuring method in engineering. The paper discusses the basic principles of loading measuring method and detailed procedure of the measurement of residual stress by loading measuring method; it gives out some advices to reduce the test errors.

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