Laminated Object Manufacturing vs. Fused Deposition Modeling – Machine Comparison

Abstract

Products made by additive manufacturing are increasingly replacing the products made by classical procedures of polymer processing. The current market requires the products to be of good mechanical properties, low prices, and complicated geometry. With the procedures such as Fused Deposition Modelling and Laminated Object Manufacturing it is possible to produce a product of relatively low price and good mechanical properties. In practice it is impossible to avoid using the products in various atmospheric conditions (e.g. UV radiation and humid environment) either intentionally or unintentionally. The UV light, the Sun being its usual source,, and the average humidity of countries worldwide can vary from 20% to 90%, depending on the weather, day and geographic location. It is therefore necessary to determine how UV light, after a longer exposure, affects the final mechanical properties of the products. A comparison of tensile strength and elasticity module of the test specimens in FDM and LOM procedures has been performed.

Biomass 3D Printing: Principles, Materials, Post-Processing and Applications

“…Wood Plastic Composite [57] Simple process, No support structure required [80], High raw material utilization [81] Complex post-processing [82], Rough and porous forming surface, Requires preheating and cooling [83] LOM Paper [61] Wood veneer [62] Low price of raw materials [84], Fast molding speed, High printing accuracy, No support structure required [85] Complex post-treatment process [86] LDM Cellulose powder [63] Wood chips [64],…”

Selected Testing for Rapid Prototyping Technology Operation

“…The Laminated Object Manufacturing (LOM) procedure can be used to produce low cost polymeric products (from polyvinyl chloride) that have to meet certain mechanical properties, especially if they are used to perform functional tests. The workers of Faculty of Mechanical Engineering and Naval Architecture of University of Zagreb (Croatia) realised testing the influence of the position of products in the machine working area on the mechanical properties (tensile and flexural properties) of the product [2].…”

“…Possibly, in case of minimal roughness requirement and higher yield stress, Lxy orientation should be selected. The price and the manufacturing speed also depend on the orientation and chamber filling, so that the orientations in z-axis direction should be avoided as much as possible [2].…”

Movement Strategy Influences on the Characteristics of Low-Carbon Steel Generated by the Lamination Object Manufacturing Method

“…The LOM process in producing the deep drawing dies achieved a rapid speed and complex die shapes with cooling channels and functional parts, saving energy when compared to traditional powder 3D printing. Pilipovic et al [27] investigated the LOM process with polymeric materials using PVC film. This study also surveyed the influence of the orientation of the film on the tensile strength of the LOM samples, indicating that the orientation Pxy obtained optimal properties.…”