Influence of Technological Parameters on Surface Quality of Injection-Molded Parts

2016 ◽  
Vol 686 ◽  
pp. 131-136 ◽  
Author(s):  
Jiří Čop ◽  
Vladimír Pata ◽  
Ondřej Bílek
Keyword(s):  
Surface Quality ◽  
Tool Material ◽  
Injection Mold ◽  
Total Production ◽  
Technological Parameters ◽  
Production Time ◽  
Molded Parts ◽  
Injection Molded ◽  
Fine Turning

In the most cases manufacturing of injection mold and its cavities comprise more than half of the total production time. Very fine finishing operations can increase production time and cost of injection mold. Appropriate choice of finishing operations and injection technological parameters can reduce price of injection mold production, shorten production time and thus lower price of small and thin injection molded parts. Tool material X38CrMoV5-1, used for cavity in injection mold, was finished by fine turning, grinding, lapping and polishing with different technological conditions to achieve various surface roughness. The main aim of this research is to find an influence of surface quality of cavity and injection technological parameters on the surface quality of injection molded parts.

Study of the Structural Characteristics of Mold for Precise Injection Molding

2011 ◽  
Vol 291-294 ◽  
pp. 610-613
Author(s):  
Hong Lin Li ◽  
Zhi Xin Jia
Keyword(s):  
Injection Molding ◽  
Process Parameters ◽  
Structural Characteristics ◽  
Injection Mold ◽  
Industrial Products ◽  
Balance System ◽  
Molded Parts ◽  
Manufacturing Accuracy ◽  
Injection Molded

With the improvement of accuracy requirements for industrial products, the precise injection molding is replacing the traditional injection molding quickly and widely. Many factors influence the quality of injection-molded parts greatly, such as the property of the plastics, mold structure and the manufacturing accuracy, injecting machine and the injecting process parameters. In this paper, the work is emphasized for the influence of mold structure on the quality of injection-molded parts. Eight portions of injection mold are analyzed, including the cavities and cores, the guide components, the runner system, the ejection system, the side-core pulling mechanism, the temperature balance system, the venting system and the supporting parts. The structural characteristics of the above eight portions are presented.

Methods to Improve the Surface Quality of Microcellular Injection Molded Parts - A Review

2016 ◽  
Author(s):  
Carla Lima ◽  
Filipe Andrade ◽  
Cristina Kawakami ◽  
Cristiane Gonçalves ◽  
Walmir Peraro
Keyword(s):  
Surface Quality ◽  
Molded Parts ◽  
Injection Molded

The Effect of Polymer Additives on Surface Quality of Microcellular Injection Molded Parts

2011 ◽  
Vol 26 (4) ◽  
pp. 429-436
Author(s):  
J. Lee ◽  
L.-S. Turng ◽  
J. Peng ◽  
E. Dougherty ◽  
P. Gorton
Keyword(s):  
Surface Quality ◽  
Polymer Additives ◽  
Molded Parts ◽  
Injection Molded

scholarly journals Influence of Finishing Operations and Melt Flow Index on Surface Quality of Injection Molded Parts

2016 ◽  
Vol 16 (2) ◽  
pp. 334-338 ◽  
Author(s):  
Jiří Čop ◽  
Ladislav Fojtl ◽  
Ondřej Bílek ◽  
Vladimír Pata
Keyword(s):  
Surface Quality ◽  
Melt Flow Index ◽  
Flow Index ◽  
Melt Flow ◽  
Molded Parts ◽  
Injection Molded

Study on the Optimization of Conformal Cooling Channels for Plastic Injection Mold

2012 ◽  
Vol 591-593 ◽  
pp. 502-506
Author(s):  
Ying Ping Qian ◽  
Yong Wang ◽  
Ju Hua Huang ◽  
Xi Zhi Zhou
Keyword(s):  
Injection Mold ◽  
Conformal Cooling ◽  
Cooling Channels ◽  
Conformal Cooling Channels ◽  
Complicated Process ◽  
Molded Parts ◽  
Injection Molded ◽  
Popular Subject ◽  
Plastic Injection

The cooling process of injection molding is a complicated process related to thermodynamics and hydrodynamics, and it has a direct impact on quality and productivity of injection molded parts. With increasing requirements on high quality of injection molded parts, the research on the design of conformal cooling channels of injection mould gradually becomes a popular subject. The paper introduced the process of heat transfer for plastic injection mold with conformal cooling channels and its feature; analysed the optimization of conformal cooling channels; A new set of design methodology and rules is developed.

A novel method for improving the surface quality of microcellular injection molded parts

Polymer ◽  
2011 ◽  
Vol 52 (6) ◽  
pp. 1436-1446 ◽  
Author(s):  
Jungjoo Lee ◽  
Lih-Sheng Turng ◽  
Eugene Dougherty ◽  
Patrick Gorton
Keyword(s):  
Surface Quality ◽  
Molded Parts ◽  
Novel Method ◽  
Injection Molded
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