In-situ leakage behavior of polymer-metal hybrids under mechanical load
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Constantin Ott
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Dietmar Drummer
Abstract
Tightness against media is a frequent requirement for technical components. Despite various standardized test procedures, failure regularly occurs during use. Often, no clear cause for failure can be determined afterwards. In this article, a new test setup is presented and applied, which allows an in-situ measurement during a mechanical load. A flow meter with a measuring range of 0.02 mL/min to 5 mL/min is used for this purpose. This makes it possible to determine leakage rates with time resolution and thus to identify the moment of failure or the causal failure load. This new method was applied directly to different aluminum inserts with a polyamide 66 (PA66) overmold. It was shown that no increase in leakage occurs until a maximum force is reached, even with multiple loads. This maximum force depends only on the pretreatment of the inserts and can be determined in a simple pull-out test independently of the test setup used here and can therefore be used for the design of assemblies. In the test, a maximum force of 100 N was achieved for untreated inserts, 140 N for adhesion promoter-coated parts and 600 N for etched inserts with a contact area of 48 mm2. With this results, a new link between adhesion and tightness can be shown, which of course is only valid for initial tight parts.
Funding source: German Federal Ministry for Economic Affairs and Energy via the AiF within the framework of the program for the support of joint industrial research (IGF) on the basis of a decision of the German Bundestag
Award Identifier / Grant number: The IGF project 20298N of the Research Association for Drive Technology (Forschungsvereinigung Antriebstechnik e.V.)
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The IGF project 20298N of the Research Association for Drive Technology (Forschungsvereinigung Antriebstechnik e.V.) was funded by the German Federal Ministry for Economic Affairs and Energy via the AiF within the framework of the program for the support of joint industrial research (IGF) on the basis of a decision of the German Bundestag.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2022 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Research Articles
- In-situ leakage behavior of polymer-metal hybrids under mechanical load
- Multi-objective optimization of injection molding process parameters based on BO-RFR and NSGAⅡ methods
- Effect of processing conditions on the rheological and mechanical properties of composites based on a PBS matrix and enzymatically treated date palm fibers
- Effect of additives on degradation of poly vinyl alcohol (PVA) using ultrasound and microwave irradiation
- Visualization analysis of temperature distribution in the cavity of conventional PPS and high-thermal-conductivity PPS during the filling stage of injection molding
- Conveyor belt modelling in extrusion flow simulation
- Analysis and optimization of FFF process parameters to enhance the mechanical properties of 3D printed PLA products
- Investigation of the interface behavior of a viscous fluid under free surface shear flow using an eccentric transparent Couette cell
- Effect of stacking sequence on mechanical, water absorption, and biodegradable properties of novel hybrid composites for structural applications
- Comparison of fibre reorientation of short-and long-fibre reinforced polypropylene by injection molding with a rotating mold core
- The impact of accelerated aging on the mechanical and thermal properties and VOC emission of polypropylene composites reinforced with glass fibers
- Three-dimensional simulation of vortex growth within entry flow of a polymer melt
Artikel in diesem Heft
- Frontmatter
- Research Articles
- In-situ leakage behavior of polymer-metal hybrids under mechanical load
- Multi-objective optimization of injection molding process parameters based on BO-RFR and NSGAⅡ methods
- Effect of processing conditions on the rheological and mechanical properties of composites based on a PBS matrix and enzymatically treated date palm fibers
- Effect of additives on degradation of poly vinyl alcohol (PVA) using ultrasound and microwave irradiation
- Visualization analysis of temperature distribution in the cavity of conventional PPS and high-thermal-conductivity PPS during the filling stage of injection molding
- Conveyor belt modelling in extrusion flow simulation
- Analysis and optimization of FFF process parameters to enhance the mechanical properties of 3D printed PLA products
- Investigation of the interface behavior of a viscous fluid under free surface shear flow using an eccentric transparent Couette cell
- Effect of stacking sequence on mechanical, water absorption, and biodegradable properties of novel hybrid composites for structural applications
- Comparison of fibre reorientation of short-and long-fibre reinforced polypropylene by injection molding with a rotating mold core
- The impact of accelerated aging on the mechanical and thermal properties and VOC emission of polypropylene composites reinforced with glass fibers
- Three-dimensional simulation of vortex growth within entry flow of a polymer melt
