Experimental investigation for different Build Orientation of FDM ManufacturedABS parts: Effect on Impact Strength

Over the past few years there has been a huge change in manufacturing industry. There has been many advanced techniques have been developed in the field of manufacturing. FDM which generally stands for fused deposition modelling is one of the most emerging technologies. FDM is the process of 3D printing that uses a layer by layer deposition of a thermoplastic material. Thermoplastic material could be of ductile or brittle based on the application. We used ABS material that is primarily ductile and it behaves better on impact testing. One of the important parameters of the products of FDM manufactured parts is that their impact strength is generally varies with the change in build orientation. This paper describes the formulation and result of a study to specify the impact strength of various full-infill polymer based materials processed in various build orientations via fused deposition modelling. Most of the tests were conducted on lower build orientations. So we decided to perform the tests on higher build orientations. Nine samples of material Acrylonitrile Butadiene Styrene (ABS) with 3 build orientations were printed via fused deposition modelling. All experiments were conducted using ASTM standards IZOD Type E tests at bed temperature 80 o c and the melting temperature at 210 o c. Through these tests we understood that build orientation is one of the main causes of strength of materials. After performing the tests, we found that the impact strength is optimal at lower build orientation and lower at higher build orientations. The other parameters were same in all the samples.