This study investigates the effect of Selective Laser Melting (SLM) process parameters on the mechanical properties of Ti-6Al-4V Grade 23, a material widely used in biomedical applications, particularly medical implants. The advancement of additive manufacturing technology has enabled the fabrication of personalized prostheses with complex geometries tailored to individual needs. Selective Lase…
Titanium alloys are widely used in aerospace, biomedical, and manufacturing industries due to their high strength-to-weight ratio and excellent corrosion resistance. However, welding titanium alloys remains challenging because of their high sensitivity to heat input, which significantly affects mechanical properties and microstructural characteristics. This study aims to analyze the effect of w…
Direct Laser Metal Deposition (DLMD) is an additive manufacturing process that forms metallic components through layer-by-layer deposition of powder melted by a high-power laser. Powder flow behavior plays a critical role in determining deposition quality, and the nozzle outlet angle directly affects powder concentration, spot size, and capture efficiency. This study analyzes powder flow charac…
Introduction: Laser peripheral iridotomy (LPI) is the first-line standard treatment for primary angle-closure disease. This study aims to compare AOD, TIA and TISA values before and after LPI. Methode: This study is a randomized clinical trial without a comparison to determine the changes in anterior opening distance, trabecular iris space area and trabecular iris angle before and after laser p…
This textbook provides a thorough and accessible treatment of semiconductor lasers from a design and engineering perspective. It includes both the physics of devices as well as the engineering, designing and testing of practical lasers. The material is presented clearly with many examples provided. Readers of the book will come to understand the finer aspects of the theory, design, fabrication …
Selective laser melting (SLM) has established itself as the most prominent additive manufacturing (AM) process for metallic structures in aerospace, automotive and medical industries. For a reliable employment of this process, it has to conform to the demanding requirements of these industries in terms of quasistatic and, especially, fatigue performance. Shafaqat Siddique identifies the influen…
Femtosecond lasers opened up new avenue in materials processing due to its unique features of ultrashort pulse width and extremely high peak intensity. One of the most important features of femtosecond laser processing is that strong absorption can be induced even by materials which are transparent to the femtosecond laser beam due to nonlinear multiphoton absorption. The multiphoton absorption…
Bangka Island is blessed with abundant tin mineral wealth. This is because the position of Bangka Island is inseparable from its geological setting which is the final phase of the Southeast Asian Tin Belt route (Cobbing, 1992 in Setiadji, 2014) which stretches from Thailand, Myanmar, Malaysia, Riau Islands, and Bangka Island. This research is located in Trubus area, Central Bangka, Kep. Bangka …
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