Abstract
This paper presents the design of an additive setup for the selective laser sintering (SLS) of high-temperature polymeric materials, which is distinguished by an original control system for aligning the device for depositing layers of polyether ether ketone (PEEK) powder. The kinematic and laser-optical schemes are given. The main cooling circuits are described. The proposed technical and design solutions enable conducting the SLS process in different types of high-temperature polymer powders. The principles of the device adjustment for depositing powder layers based on an integral thermal analysis are disclosed. The PEEK sinterability was shown on the designed installation. The physic-mechanical properties of the tested 3D parts were evaluated in comparison with the known data and showed an acceptable quality.
Highlights
Selective laser sintering (SLS) is one of the most famous and commercially successful methods of additive technologies [1,2,3,4,5]
There are a number of promising polymer powder materials that differ from those traditionally and long used in the technology of selective laser sintering (SLS)—nylon [6,7], polycarbonate [8,9,10,11,12], polyamides [13,14,15,16,17], polyethylenes [18,19], or ferrielectric polyvinylidene fluorides [20] and so on—by a combination of high heat resistance, durability, and a wide range of interesting physic-mechanical and chemical-biological properties [21,22,23,24,25,26]
Interesting are the parts manufactured by the SLS technology from some types of powders based on polyetheretherketone (PEEK)
Summary
Selective laser sintering (SLS) is one of the most famous and commercially successful methods of additive technologies [1,2,3,4,5]. Interesting are the parts manufactured by the SLS technology from some types of powders based on polyetheretherketone (PEEK). They have high strength values of up to. A set of these properties in combination with the capabilities of the SLS method allows creating unique parts These parts are increasingly used in the aerospace industry, medicine, and motorsport [29,30,31,32]. A set of these properties in combination with the SLS capabilities allows creating unique details These parts are increasingly used in aerospace, medicine, and auto- and motorsport [29,30,31,32].
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