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首页> 外文期刊>Journal of Materials Engineering and Performance >The Potential of a Clinch-Lock Polymer Metal Hybrid Technology for Use in Load-Bearing Automotive Components
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The Potential of a Clinch-Lock Polymer Metal Hybrid Technology for Use in Load-Bearing Automotive Components

机译：紧扣锁聚合物金属混合技术在承重汽车零部件中的应用潜力

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摘要

In order to help meet the needs of automotive original equipment manufacturers and their suppliers for a cost-effective, robust, reliable polymer-metal-hybrid (PMH) technology which can be used for the manufacturing of load-bearing body-in-white (BIW) components and which is compatible with the current BIW manufacturing process chain, a new approach, the so-called direct-adhesion PMH technology, was recently proposed (Grujicic et al., J. Mater. Process. Technol., 2008, 195, p 282-298). Within this approach, the necessary level of polymer-to-metal mechanical interconnectivity is attained through direct adhesion and mechanical interlocking. In the present work, a new concept for mechanical interlocking between the metal and plastics is proposed and analyzed computationally. The approach utilizes some of the ideas used in the spot-clinching joining process and is appropriately named clinch-lock PMH technology. To assess the potential of the clinch-lock approach for providing the required level of metal/polymer mechanical interlocking, a set of finite-element based sheet-metal forming, injection molding and structural mechanics analyses was carried out. The results obtained show that stiffness and buckling resistance levels can be attained which are comparable with those observed in the competing injection overmolding PMH process but with an ～3% lower weight (of the polymer subcomponent) and without the need for holes and for overmolding of the free edges of the metal stamping.
机译：为了满足汽车原始设备制造商及其供应商的需求，他们需要一种经济高效，坚固，可靠的聚合物-金属混合（PMH）技术，该技术可用于制造承重白车身（ BIW）组件并且与当前的BIW制造工艺链兼容，最近提出了一种新方法，即所谓的直接粘合PMH技术（Grujicic等人，J.Mater.Process.Technol。，2008，195 ，第282-298页）。在这种方法中，通过直接粘合和机械互锁可达到聚合物与金属之间机械互连的必要水平。在目前的工作中，提出了一种用于金属和塑料之间机械互锁的新概念，并进行了计算分析。该方法利用了点弯连接过程中使用的一些想法，并被适当地称为“弯钉锁PMH”技术。为了评估采用咬合锁方法提供所需水平的金属/聚合物机械互锁的潜力，进行了一组基于有限元的钣金成型，注塑成型和结构力学分析。获得的结果表明，可以获得的刚度和抗屈曲水平与在竞争性注塑包覆成型PMH工艺中观察到的相当，但重量减轻了约3％（聚合物子组分），并且不需要孔和包覆成型金属冲压的自由边缘。

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