نتایج جستجو برای: vibration assisted drilling
تعداد نتایج: 192437 فیلتر نتایج به سال:
The paper details the effects of depth of cut and vibration amplitude when ultrasonic assisted (US) creep feed grinding Inconel 718 with an open structured alumina based wheel. The workpiece was actuated at a constant frequency (~20.5kHz) via a block sonotrode attached to a 1kW piezoelectric transducer-generator system. A full factorial experimental array comprising 12 tests was conducted invol...
We demonstrate mechanical modulation of phonon-assisted field emission in a free-standing silicon nanomembrane detector for time-of-flight mass spectrometry of proteins. The impacts of ion bombardment on the silicon nanomembrane have been explored in both mechanical and electrical points of view. Locally elevated lattice temperature in the silicon nanomembrane, resulting from the transduction o...
Calculation of the specific charge and specific drilling before a blasting operation plays a significant role in the design of a blasting pattern and the reduction of the final extraction cost of minerals. In this work, the information from the Sungun, Miduk and Chah-Firouzeh copper mines in Iran was assessed, and it was found that there was a significant relationship between the specific charg...
Improving the surface quality of additive manufactured parts like poly lactic acid (+) is an important study that currently being carried out by researchers. To reach high-quality, different conventional and nonconventional methods are applied. In this study, capability ultrasonic vibration in drilling (+)was examined. The process was implemented two methods: vibratory drilling. Then, thrust fo...
One of the great challenges in the processing of materials using Equal Channel Angular Pressing (ECAP) is the high forming forces required to produce large shear deformation in the material. Researchers show that the friction forces between the die and the sample constitute a great part of the total forming forces. Recently, ultrasonic vibrations are successfully implemented into the ECAP proce...
In the original version of book, following belated correction has been incorporated: The affiliation “Department: School Mechanical Science and Technology” authors “Wei Bai Ronglei Sun” changed to “School Engineering”. book updated with change.
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