<p>Laser engraving is the most non - traditional and efficient working method in machining of materials different geometry as compared to conventional methods. The main objective this study determine impact uArm swift pro robot operated laser process on a wooden pitch board piece. However, was connected with Studio 1.1.22 software perform operation. For purpose effect parameters like spot...

Vibration-assisted machining offers a solution to expanding needs for improved machining, especially where accuracy and precision are of importance, such as in micromachining of single crystals of metals and alloys. Crystallographic anisotropy plays a crucial role in determining on overall response to machining. In this study, we intend to address the matter of ultra-precision machining of mate...

The ability of 8 picosecond pulse lasers for three dimensional direct-writing in the bulk of transparent dielectrics is assessed through a comparative study with a femtosecond laser delivering 600 fs pulses. The comparison addresses two main applications: the fabrication of birefringent optical elements and two-step machining by laser exposure and post-processing by chemical etching. Formation ...

Infections caused by Acinetobacter baumannii often occur in outbreaks during which the bacteria are spread through contact with clinical personnel harboring the bacteria and from colonized hospital equipment (2). Environmental surveillance of hospital surfaces is useful in determining if equipment is colonized by A. baumannii and identifying the sources of hospital outbreaks (3, 5, 6). Leeds Ac...

This study investigates the laser beam machining mechanism, surface formation mechanisms, heat-affected zone, taper formation, and dimensional deviation of titanium alloy, based on information available in literature. The heat induced by melts vaporises which is removed a high pressure-assisted gas. machined alloy expected to have craters resolidified materials were contributed low thermal cond...

BACKGROUND Lymphangioleiomyomatosis (LAM) and angiomyolipoma are two different, but related rare diseases. To the best of our knowledge, pulmonary LAM and pulmonary angiomyolipoma have not previously been observed in the same patient. CASE PRESENTATION A 38-year-old woman presented with a dry cough and left flank pain. She had a right nephrectomy for renal angiomyolipoma 17 years ago. A magne...

endonasal endoscopic laser-assisted dacryocystorhinostomy has many advantages over conventional external dacryocystorhinostomy. this technique avoids a cutaneous scar and causes less surgical trauma and bleeding than that seen in conventional lacrimal surgery. a total of 20 endoscopic laser-assisted dacryocystorhinostomy in 16 patients were performed between 1998 and 1999. the procedure was suc...

Although titanium alloys have outstanding mechanical properties such as high hot hardness, a good strength-to-weight ratio and high corrosion resistance; their low thermal conductivity, high chemical affinity to tool materials severely impair their machinability. Ultrasonically assisted machining (UAM) is an advanced machining technique, which has been shown to improve machinability of a β-tita...

Cemented carbides are outstanding engineering materials widely used in quite demanding material removal applications. In this study, laser surface texturing is implemented for enhancing, at the surface level, the intrinsic bulk-like tribological performance of these materials. In this regard, hexagonal pyramids patterned on the cutting surface of a tungsten cemented carbide grade (WC–CoNi) have...