Investigate The Effect Of Layer Thickness On Mechanical Properties Of Parts Produce Using RP 3D-Printer Machine

Mohammad Hafiz, Basir (2008) Investigate The Effect Of Layer Thickness On Mechanical Properties Of Parts Produce Using RP 3D-Printer Machine. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Mechanical properties for material are something which can be defined as important terms of producing high quality product. In rapid prototyping, there are many kinds of materi-al used to produce the product or in details; to product prototype. In this research, the main focus is to investigate the mechanical properties of parts produce by using three dimensional printing. To be more specific, the investigation is about on how the layer thickness affects parts produced by three dimensional printing. The layer thickness defined-in producing the testing specimens was O.IOOOmm and 0.0875mm. By referring to several journals or other sources like books and manuals, theoretical studies on determine the mechanical properties has been reviewed. All the fabrication process was carried out by using ZPrinter 310 Plus printing machine. Material use in this process was zp 1 30 powder-based material. Before that, the specimens have been designed according to ASTM standards. For each part, there were differences between designations and geometries in order to match with types of test conducted. Then, all the specimens shape have been drawn by using SolidWork software and saved in STL format. 30 specimens were totalJy produced; five testing specimens each test and layer thickness involved as mention before. Final method in completing the research was to test each specimens produce by using three types of testing method; tensile, compression, and hardness test. From the test, expected result in determine the mechanical properties of the parts produce by three dimensional printing was obtained. Parts produced in 0.0875 mm of layer thickness obtained the highest value in all data; with 1.0260 MPa of tensile strength, 12.5825 N/mm2 for modulus of elasticity and 218.94 MPa for compressive strength. As for final result, the affect on layer thickness of part produced by 3D-printer have been identified. Parts produce in 0.0875mm of layer thickness having greater tensile and compressive strength compared with parts made from 0.1000 mm of layer thickness. But opposite from that it became more brittle.

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