Abstract
The paper reported the results of a study concerned with the principle of operation of the 3D printing technology using the method of selective sintering of metallic powders, and taking into account their advantages and drawbacks. The principle of the operation of 3D printing technology applying the DMLS (Direct Metal Laser Sintering) method is presented. On the basis of the performed tests, the anisotropy of the printed materials is demonstrated. The reasons responsible for this phenomenon are identified. The paper presents the results of the strength tests which indicate that the crack during the test occur in the building direction of the layers during printing. The results were compiled for two different types of specimens and two different testing machines.
Highlights
Over the past few years, there has been a great progress in the development of 3D printing technology, in particular in the areas related to the production of plastic elements
3D printing offers the possibility of producing low-serial construction elements with a complex design that are difficult to manufacture and costly using traditional manufacturing techniques. 3D printing technology involves the building and bonding of successive layers of material with parameters characterized by an adequate structure and thickness
The aim of the study reported here is to analyze the influence of the printout orientation using the DMLS method on the strength of the tested material
Summary
Over the past few years, there has been a great progress in the development of 3D printing technology, in particular in the areas related to the production of plastic elements. 3D printing technology involves the building and bonding of successive layers of material with parameters characterized by an adequate structure and thickness. As a result of applying subsequent layers, a compact model is formed that constitutes a final product or a semi-finished product. 3D printing requires further processing, most often associated with removing supports or finishing the printed surface. Despite many advantages, this technology involves drawbacks such as the need to remove the model supports or use finishing machining to generate a better surface [1,2,3,4]. The specimens applied in the experiment were made using Maraging Steel MS1 tool steel
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