Fatigue Performance Of Additive Manufactured Polymer With Different Composition Of Raw And Recycle Material

Zulkifli, Nor Fairuz Safra (2019) Fatigue Performance Of Additive Manufactured Polymer With Different Composition Of Raw And Recycle Material. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Selective Laser Sintering is a rapid prototyping that can manufacture high quality product. The main concept is by solidifying powder material continuously layer by layer to create a product. Due to production method, the property differs from normal material as well as fatigue properties. Nylon powder is chosen as the material of the product since it has many good characteristics. There are three types of material that will be investigated which are raw, mixture and recycle material. In practice, not only raw polymer is used but also recycle, or reheat material. As the polymer undergo different process, the properties of the material also differ. In case of component subjected to dynamic loading, fatigue properties of the material is important to be studied. Tensile, Impact, Fatigue and Fractography test were tested on the product to determine more detail about its failure properties. As for tensile test, specimen from raw material and mixture has almost same properties which are 47.757 MPa and 49.143 Mpa, while sample from recycle material is 37.193 MPa. Fatigue life also show the same trend which specimen from raw material and mixture has almost the same fatigue life, while fatigue life for specimen from recycle material is 55% lower. Although recycle material initially has poor properties, but with good combination with raw, recycle and reheat material, the properties can be improve

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