...Lj. Tanovic; P. Bojanic; R. Puzovic; M. Milutinovic This paper shows the results of investigations performed in the brittle materials microcutting at the Faculty of Mechanical Engineering, Belgrade University. The interactions between a single diamond grain and the machined granite are analyzed...

...Chandra Nath; Mustafizur Rahman; Ken Soon Neo In recent years, the ultrasonic elliptical vibration cutting (UEVC) technique has been found to be an efficient method for the ultraprecision machining of hard and brittle materials. During the machining at a given nominal depth of cut (DOC), the UEVC...

...J. Xie The natural granite includes various hard and brittle minerals with different material behaviors. In this paper, the discrete distribution parameters of microhardness and microbrittleness are proposed to describe its micron-scale material behavior. The objective is to evaluate and predict...

...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...

...Na Qin; Z. J. Pei; C. Treadwell; D. M. Guo Ultrasonic-vibration-assisted grinding (UVAG) or rotary ultrasonic machining has been investigated both experimentally and theoretically. Effects of input variables on output variables in UVAG of brittle materials and titanium (Ti) have been studied...

... 29 10 2008 abrasion brittleness machining polishing figure correction precision machining mist-abrasion machining optics From the perspective of surface metrology, the surfaces machined through different machining procedures are of various defects. Problems...

... and the glass fiber. A brittle failure criterion is used for the carbon fiber specimen and is coded in FORTRAN as a user defined material (VUMAT). The brittle failure of the carbon fibers is modeled using the Marigo model for brittle failure. For validation purposes, simulation results of the multiphase...

... model. The competition between ductile and brittle modes of failure in the polymer phase (polycarbonate) is captured by implementing the Gearing and Anand failure model calibrated at different temperatures. The CNT phase is given a simple strain-to-failure criterion. The proposed machining model has...

... of ceramics. The LWJ process also improved the surface finish while reducing energy losses in the process. The practical realization of the LWJ manufacturing process could be a potential alternative to diamond saw, high-power laser, and high-pressure abrasive water-jet methods for machining hard and brittle...

...K. Fathima; M. Rahman; A. Senthil Kumar; H. S. Lim The electrolytic in-process dressing (ELID) grinding is a new and an efficient process for ultra-precision finishing of hard and brittle materials. Unlike conventional grinding processes, the ELID grinding is a hybrid process that consists...

...Yinghui Liu; Constantinos Mavroidis; Yoseph Bar-Cohen; Zensheu Chang In this paper we study the design of the coring bits with wedge-shape cutting teeth of vibratory drills that percussively penetrate into brittle material. The overall coring bit specific energy is analytically derived...

...Masahiko Yoshino; Yasufumi Ogawa; Sivanandam Aravindan This paper reports on the development of a machining device which is capable of carrying out precision machining experiments under external hydrostatic pressure. Machining trials were conducted on hard-brittle materials such as soda glass...

...Masahiko Yoshino; Sivanandam Aravindan This paper reports on nanosurface fabrication of hard brittle materials by structured diamond tool imprinting. Ultrafine structured surfaces were fabricated on soda glass, firelite glass, quartz glass, quartz wafer, and silicon. A specially designed...

... (SiC). SiC experiences a ductile-to-brittle transition similar to other nominally brittle materials such as silicon, germanium, and silicon nitride. It is believed that the ductility of SiC during machining is due to the formation of a high-pressure phase at the cutting edge, which encompasses the chip...

...Masahiko Yoshino, Associate Professor,; Takayuki Aoki, Graduate Student,; Takahiro Shirakashi, Professor, This paper proposes machining under high hydrostatic pressure as a new damage-free machining method for hard-brittle materials. Experiments for this study utilized a specially designed...

...Y. P. Chang; M. Hashimura; D. A. Dornfeld, Fellow ASME, The mechanical material removal (MRR) mechanisms in lapping were investigated, using concepts of two-body vs. three-body abrasion and ductile vs. brittle machining. The statistical nature of the depth of cut in the lapping process...

...A. Chandra; K. Wang; Y. Huang; G. Subhash; M. H. Miller; W. Qu A simple stress based defect evolution model is developed to assess the influence of various process parameters on material removal rate (MRR) and induced damage during grinding of brittle materials. Model predictions for normal...