... and, in the process, understanding the physics of orthogonal cutting of UD-FRP laminates. 02 12 2007 27 01 2009 09 03 2009 cutting failure analysis fibre reinforced plastics laminates machining Fiber reinforced plastics (FRPs) have become essential weight bearing...

...Jiunn-Jyh Junz Wang; Yong-Yuan Liao This paper investigated the scribing process characteristics of the hard and brittle materials including single crystal silicon, STV glass, and sapphire substrate. Under various cutting angles, major process characteristics are examined including the groove...

... to simulate orthogonal dry cutting with continuous chip formation, then a pure Lagrangian analysis was used to predict the induced RS. The current work was validated by comparing the predicted RS profiles in four workpiece materials to their corresponding experimental profiles obtained under similar cutting...

... with titanium foils as the outer plies. The two materials are assembled by bonding the polymer matrix composite plies and titanium foils to form a hybrid composite laminate. Both experimental and analytical work has been performed to characterize major hole quality parameters and cutting mechanisms encountered...

...Sathyan Subbiah; Shreyes N. Melkote Orthogonal cutting experiments using a quick-stop device are performed on Al2024-T3 and OFHC copper to study the chip–workpiece interface in a scanning electron microscope. Evidence of ductile tearing ahead of the tool at cutting speeds of 150 m ∕ min has been...

...Jiang Hua, Post Doctoral Researcher; Rajiv Shivpuri, Professor In machining titanium alloys with cemented carbide cutting tools, crater wear is the predominant wear mechanism influencing tool life and productivity. An analytical wear model that relates crater wear rate to thermally driven cobalt...

...Y. Ohbuchi, Research Associate; T. Obikawa, Professor A thermo-elastic-plastic finite element modeling of orthogonal cutting with a large negative rake angle has been developed to understand the mechanism and thermal aspects of grinding. A stagnant chip material ahead of the tool tip, which...

.... The repartition of the cutting force into the components required for the elasto-plastic deformation of the material and for crack opening is obtained. Fischer , R. , 1983, “Beitrag zur Modellierung der Abstumpfung von Holzbear-beitungswerkzeugen,” (in German) Holztechnologie, 24 , pp. 70–72...

... on the observation of behavior of workpiece materials during drilling of low alloy steel. The model was based on the principle of energy conservation and metal cutting theory. Experimental validation was done, and the results showed good agreement with the model. Based on the model, the effects of several important...

...S. S. Joshi; N. Ramakrishnan; P. Ramakrishnan Discontinuously Reinforced Aluminum (DRA) Composites form unique case from the research in metal cutting point of view. Reinforcement in these materials acts as “macroscopic” and “isolated” discontinuities in the path of the tool. The mechanism of chip...

..., with conventional coolant and with through-the tool coolant. The results provided strong evidence that the conventional application of coolant was having no beneficial effect on the cutting operation compared to dry drilling. However, through-tool cooling gave a significant improvement in performance in terms...

...: no additive, conventional manganese sulphide (MnS) additions and the new MnX additive. A turning operation and cutting speeds of 100–250 m/min were used during which cutting forces, tool wear and surface finish were measured. The MnX material was found to exhibit superior performance. However, this was most...

...I. W. Park; D. A. Dornfeld, Fellow ASME A finite element model of orthogonal metal cutting including burr formation is presented. A metal-cutting simulation procedure based on a ductile failure criterion is proposed for the purpose of better understanding the burr formation mechanism and obtaining...

...I. W. Park; D. A. Dornfeld, Fellow ASME Finite element models in orthogonal cutting are presented in order to examine the influences of exit angles of the workpiece, tool rake angles, and backup materials on burr formation processes in 304 L stainless steel in particular. Based on the metal-cutting...

...M. Chiarelli, Assistant Professor; A. Lanciotti, Assistant Professor; M. Sacchi, Engineer, The paper describes the results of a research programme, carried out at the Department of Aerospace Engineering of the University of Pisa, for the assessment of the influence of plasma cutting on the physical...