rather new. Tribology is a relatively young branch of Mechanical Engineering, introduced in 1966 by Prof. H. Peter Jost in his report for the UK Department of Education and Science. The Oxford English dictionary defines Tribology as “the branch of science and technology concerned with interacting surfaces in relative motion and with associated matters (as friction, wear, lubrication, and the design of bearings)”. As with the other younger branches of Science of Technology, Tribology has also culminated
treatment of natural fibers. 11. Plasma treatment 12. Sodium chlorite treatment of natural fibers 1.6 Friction and Wear Friction and wear are considered as sub areas of tribology. The science and technology of interacting surfaces in relative motion and of related subjects and practices is known as tribology. Since its definition, tribology has been widely recognized as general concept embracing all aspects of transmission and dissipation of energy and materials in mechanical equipment including various
Copy Publisher. R.Nave, n.d. Hyper Physics. [Online] Available at: http://hyperphysics.phy-astr.gsu.edu/hbase/frict.html [Accessed 14 May 2014]. Ulrika Pettersson, S. J., 2003. Influence of surface texture on boundary lubricated sliding contacts. Tribology International, 36(11), pp. 857-864.
SURFACE MODIFICATION ON THE STEM OF A TOTAL HIP JOINT REPLACEMENT INTRODUCTION Titanium and its alloys are used in various applications due to their desirable properties. One of the main sectors where titanium is highly used is in biomedical applications where both implants and tools for surgery make use of this element due to its biocompatibility, low modulus and excellent corrosion resistance. However titanium shows poor tribological properties and therefore it is generally alloyed and undergoes
FinQ1) The are generally four kinds of substitute constituent utilized in THA that are metal-on-metal, metal-on-plastic, and ceramic on ceramic, ceramic on plastic. Types prosthesis utilized is reliant on the needs of patient and the procedure of the surgeon. All hip replacements allocate one thing in common: they contain a ball-and-socket joint. Which materials are utilized in the ball and in the socket, that jointly is shouted the “bearing” like a bearing in a car has the possible to alter the
Why Skateboarders' Shoes Wear Out So Fast Through out skateboarding history a sand paper material known as grip tape has been glued to skateboard decks. This material made for gripping onto boards also destroys sneaker soles. Grip tape causes friction between sneakers and itself, while making a grip and facilitating control of the board. Pedaling wears out sneakers like walking, but at more accelerated rates; much higher than walking. Becoming more circwnspect, there is the factor of increased
8.3 Rheological properties of WPC Rheological behavior helps to elucidate the fundamental flow behavior of composite melts, and can directly or indirectly reflect the processing performance, internal structure, and physical and mechanical performance of WPCs. For the economical consideration, researchers are attempted to incorporate high amount of wood flour. So, a clear insight of the rheological behavior is necessary in such high wood content to facilities the processing. In addition, additives
A surface manufactured by cutting processes is one of the most important criteria for quality. Surface roughness is a significant factor which is not only important for wear, friction and lubrication, which became traditional for tribology, but it is also important for sealing, hydrodynamic, electric, heat transfer. Surface roughness depends on many variables, such as material couple, manufacturing type, cutting conditions, etc. Surface roughness is one of the most important characteristic
mechanical characterization using scanning probe microscopy. Wear , 1105-1123. Nano material characterization using scanning probe microscopy. , Mc grawhill publications, NewDelhi,2009. Scanning probe microscopy (al k. e., 2007) Bhushan, B. (2011). Nano tribology and nano mechanics. Springer.
COMPARISON OF FRICTION WELDING TECHNIQUE WITH CONVENTIONAL WELDING METHODS Megavarnan.R M.E Student, Mechanical Department, Bannari Amman Institute Of Technology,Sathyamangalam-638401, India, megavarnan7@gmail.com Abstract In general, any machine part can be produced by one of various manufacturing methods such as forging, machining, casting and welding. Determination of the manufacturing methods depends on production costs of the alternatives for individual parts. Friction welding which is