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Dry Vibratory Drilling Seminar report

Dry machining processes are much better for environment than classical machining processes using coolant. On removing coolant, we need to develop the new technologies needed. The productivity of these technologies is now very good and is equivalent to the classical productivity rates. The main question is to know if these new emerging technologies are fundamentally better for the environment. The new technology developed is said to be dry technology, here splitting of the chip in deep drilling can be obtained by vibrating the drill axially. The studies conducted on self-vibratory drilling (SVD) has led to the design of a drilling head compatible with the existing tools and machines, and that does not require additional energy. The aim of this paper is to demonstrate that the environmental impacts generated by SVD over an industrial production are significantly less than those of TD and to quantify them.

For that purpose here we are comparing both traditional and SVD with the help of graphs. The graph comparing the relative weight of environmental impacts of the two processes according to the 10 indicators like abiotic depletion, acidification, eutrophication, global warming, ozone layer, human toxicity, fresh water aquatic ecotox, marine aquatic ecotoxicity, terrestrial ecotoxicity, photochemical oxidation. The negative impact created by dry machining is that it produces high temperature during the friction between the tool and the work piece, somehow this can be counteract by providing a interrupted machining environment. Dry machining also helps in the reduction of thermal shocks.

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