...Vishnu Vardhan Posa; Murali Sundaram Laser beam machining (LBM) is a versatile process that can shape a wide range of engineering materials such as metals, ceramics, polymers, and composite materials. However, machining of glass materials by LBM is a challenge as most of the laser energy...

.... The laser induced plasma micromachining (LIP-MM) is a novel tool-less multimaterial selective material removal type of micromachining process. In a manner similar to micro-EDM, it also removes material through plasma-matter interaction. However, instead of a tool and electric potential, it uses an ultra...

... m = time when melting begins, s t p = half width of the laser beam pulse at q "   0 / 2 , s t r = time when melting and resolidification begins, s t s = time when solidification ends, s...

... Division of ASME for publication in the J OURNAL OF M ANUFACTURING S CIENCE AND E NGINEERING . Manuscript received September 2, 2011; final manuscript received November 12, 2012; published online January 18, 2013. Assoc. Editor: Wei Li. 02 09 2011 12 11 2012 Laser welding is used...

...B. S. Yilbas; S. S. Akhtar; C. Karatas Laser cutting of small diameter holes in alumina tiles is carried out. Temperature and stress fields are predicted numerically using the ABAQUS finite element code. The cut sections are examined by incorporating scanning electron microscope and optical...

...B. S. Yilbas; S. S. Akhtar; A. Matthews; C. Karatas; A. Leyland The results of experiments into laser assisted gas carbonitriding of a Ti–6Al–4V alloy are reported. The temperature and thermal stress fields were simulated using finite element analysis. Microstructural changes in the laser treated...

... in the drilling process. This paper presents a new method to microdrill Inconel 718 alloy using laser followed by mechanical drilling (sequential drilling). The aim of this research was to understand and evaluate the capability of using sequential laser mechanical drilling method as an effective and efficient...

...J. Harris; R. Akarapu; A. E. Segall Despite the many advantages of using lasers for welding ceramics (alumina in particular), cracks induced by the resulting and severe thermal stresses are often detrimental to weld quality and strength. While many factors contribute to the formation...

...S. Tsopanos; R. A. W. Mines; S. McKown; Y. Shen; W. J. Cantwell; W. Brooks; C. J. Sutcliffe The rapid manufacturing process of selective laser melting has been used to produce a series of stainless steel 316L microlattice structures. Laser power and laser exposure time are the two processing...

...Salman Nisar; M. A. Sheikh; Lin Li; Andrew J. Pinkerton; Shakeel Safdar In laser cleaving of brittle materials using the controlled fracture technique, thermal stresses are used to induce a single crack and the material is separated along the cutting path by extending the crack. One of the problems...

...Benjamin Campbell; Murat Tiryakioğlu Prior methods of assessing the quality of laser machined features are reviewed. The common features that contribute to a quality analysis for laser-drilled holes are described and the best methods to measure them are presented. A new quality index based...