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Types of defects in the SLM process, their causes Professional

منذ شهر Automobiles Salah Bey   31 الآراء

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موقعك: Salah Bey
السعر: -- دج

Original Title: Types, Causes and Adverse Effects of Defects in SLM Process Defects in SLM process can be divided into defects in powder spreading process and defects in printing n addition, the splashing on the surface of the solidified layer will affect the next layer of powder, resulting in the next layer of powder being uneven and uneven, and even damaging the scraper. Physical process of interaction between laser molten pool and laser beam In order to keep the metal powder bed from being contaminated by spatter, a high-speed protective gas flow can be used to remove the spatter. However,Titanium 6Al4V wire, excessive airflow will affect the surface quality of the powder layer, and how to optimize the airflow technology has become the direction y is too low, the metal powder will not be completely melted, which will lead to spheroidization. If the energy is too high, the liquid metal will splash on the unmelted metal powder, which will also lead to spheroidization. Spheroidization will affect the quality of the next layer of powder,Titanium welding pipe, affect the surface quality of components, and also lead to defects such as poor fusion and slag inclusion. Further, spheroidization reduces the testomata and laser-induced stomata. The process of pore formation is very complex and closely related to the process parameters. Reasonable printing process and uninterrupted process optimization for material use times are still important conditions to avoid pores. 4. Surface quality With the development of SLM technology, the types of printable materials are more and more abundant, ti6al4v ,ti6al4v eli, and the mechanical properties of components have been greatly improved, but the relatively poor surface quality is still one of the main rs, so each layser, the thickness of the powder layer will affect the stability of the molten pool, too thick powder layer will cause defects such as lack of fusion, pores and so on,nickel titanium wire, too thin powder layer will reduce the manufacturing efficiency, therefore, strictly controlling the quality of powder spreading is of great significance to improve the quality of SLM components. Return to Sohu to see more Responsible Editor:. yunchtitanium.com

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