منابع مشابه
ultrasonic assisted drilling of bone
ultrasonic assisted drilling (usd) is new technique to drill difficult to machine materials. in this method, tool or workpiece vibrates with amplitude of few microns in addition to conventional drill bite rotation. in this experimental research, the bone was drilled both conventionally and using uad, then the thrust was measured in two methods at feed rates of 50, 75 and 125 mm/s and 500, 710 a...
متن کاملModeling of particle flow due to ultrasonic drilling
In-situ sampling and analysis is one of the major tasks in future NASA exploration missions. It is essential that the samples acquired on other planets including Mars are free of contaminations from the earth. Recently, a novel drilling technology that is actuated by a piezoelectric drive mechanism was developed and it is called Ultrasonic/Sonic Driller/Corer (USDC). This drill has an inherent ...
متن کاملRotary ultrasonic bone drilling: Improved pullout strength and reduced damage.
Bone drilling is one of the most common operations used to repair fractured parts of bones. During a bone drilling process, microcracks are generated on the inner surface of the drilled holes that can detrimentally affect osteosynthesis and healing. This study focuses on the investigation of microcracks and pullout strength of cortical-bone screws in drilled holes. It compares conventional surg...
متن کاملApplication of Taguchi Approach in the Optimization of Cutting Parameters in Micro-Ultrasonic Drilling Process
In the present research work, effect of several process parameters on the machining characteristics of borosilicate glass has been reported. The machining characteristics that are being investigated are material removal rate (MRR) and tool wear rate (TWR). Four different process parameters were considered for this study power rating of the machine, static load, slurry concentration and abrasive...
متن کاملAcoustic Emission and Echo Signal Compensation Techniques Applied to an Ultrasonic Logging-While-Drilling Caliper
A logging-while-drilling (LWD) caliper is a tool used for the real-time measurement of a borehole diameter in oil drilling engineering. This study introduces the mechanical structure and working principle of a new LWD caliper based on ultrasonic distance measurement (UDM). The detection range is a major performance index of a UDM system. This index is determined by the blind zone length and rem...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1990
ISSN: 0001-4966
DOI: 10.1121/1.399156