Abstract:
Drilling is the most common machining process. One estimate is that 75% of all
material removed comes drilling operations. Drilling involves the creation of holes
that are right circular cylinders. This is accomplished most typically by using a
twist drill, something most readers will have seen before. The figure below
illustrates a cross section of a hole being cut by a common twist drill. Many
vibration exposed workers have been found to suffer from muscle fatigue and
decreased grip strength. Therefore in order to quantify and determine safe levels of
human exposure to vibration, measurements and analysis of significance vibration
factors are necessary. There are three main objectives in this study.
During the planning and preparation of this report the authors had the advice of
some people engineers, library assistants.
Description:
Supervised by
Prof. Dr. Anayet Ullah Patwari
Department of Mechanical and Chemical Engineering (MCE),
Islamic University of Technology, (IUT),
Board Bazar, Gazipur-1704, Bangladesh.
