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Institute of Polymer Technology (LKT)
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Plastic / Metal Hybrid Technology

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Plastic / Metal Hybrid Technology

Plastic / Metal Hybrid Technology

Erlanger Träger made of steel with PA6 rips full-face joined by a bonding agent

The development of weight-carrying hybrid structures consisting of a metallic insert and injection-molded polymer ribbing offers new, constructive opportunities for lightweight design and opens up areas of application that typically belong to fully metal-based materials like front ends, car roof cross members, etc. As such, the processing method In-Mold-Assembly (IMA) offers an outstanding cost-effectiveness in comparison to Post-Mold-Assembly (PMA) because parts leave the injection molding machine ready for the final assembly. The load transmission between the two dissimilar material classes typically occurs at junction points such as crimping and clinching via form and force fitting.

Due to the mix of materials, the need for novel joining methods is growing to better utilize ribbing and insert material and to attain further light weight potential. At the Institute for Polymer Technology full-faced joining methods for inline-processing are being investigated. Specimens of varying complexity (from the single ribbing to the hybrid carrier “Erlanger Träger”) are currently being employed for test purposes.

 

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Dr.-Ing. Tobias Kleffel

Institute of Polymer Technology (LKT)
Friedrich-Alexander-University Erlangen-Nuremberg

Am Weichselgarten 10
91058 Erlangen-Tennenlohe
Germany
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