نتایج جستجو برای: 2d vibration assisted turning

تعداد نتایج: 284179  

Journal: :journal of modern processes in manufacturing and production 0
reza nosouhi modern manufacturing technologies research center, najafabad branch, islamic azad university, najafabad, iran saeed behbahani department of mechanical engineering, isfahan university of technology, isfahan, iran saeid amini manufacturing department, faculty of engineering, university of kashan, kashan, iran mohammad reza khosrojerdi manufacturing department, faculty of engineering, university of kashan, kashan, iran

a new dynamic friction model for modeling of elliptical vibration assisted turning (evat) was developed in this research. the periodic change of the friction force direction is known to be one of the most important causes of this phenomenon. in modeling of machining processes (including the evat process), static coulomb friction model was employed by most of the researchers. because of the peri...

Journal: :مهندسی مکانیک مدرس 0
حامد رضوی دانشجوی دکتری، بخش مهندسی مکانیک، دانشکده فنی و مهندسی، دانشگاه تربیت مدرس محمد جواد ناطق دانشیار دانشکده فنی و مهندسی- بخش مکانیک- گروه ساخت و تولید امیر عبدالله دانشیار، دانشکده مهندسی مکانیک، دانشگاه صنعتی امیرکبیر حمید سلیمانی مهر دانشجوی دکتری، بخش مهندسی مکانیک، دانشکده فنی و مهندسی، دانشگاه تربیت مدرس

the aim of present study is to investigate the kinematics of tool-workpiece’s relative movement in conventional and ultrasonic-vibration assisted turning (uat). the kinematic analysis of uat shows that the movement of cutting tool edge relative to the workpiece resulted from the cutting speed, feed speed and tool’s vibration affects the lateral machined surface of workepiece and leaves a repeat...

2010
Amir Goodarzvand Chegini Javad Akbari

In this study, vibration cutting has been applied to machining of a novel material, NiTi based shape memory alloy (SMA), using a commercial ultrasonic piezoelectric transducer to vibrate an ISO insert CCMT geometry cutting tool. The effect of vibration in turning process was characterized by investigating the surface roughness of workpiece and surface quality assessment of machined surface usin...

Journal: :journal of modern processes in manufacturing and production 0
hossein nouri hosseinabadi department of engineering, mechanical department, najafabad branch, islamic azad university, najafabad, iran masoud farahnakian department of engineering, mechanical department, najafabad branch, islamic azad university, najafabad, iran

nowadays the surface texturing has been widely recognized as a usable capability to improve the tribological systems. in this paper, ultrasonic assisted turning (uat) isperformed to create the micro textures on the flat faces. micro surface texturing ismade on the al7075-t6 by the uat in the face turning process. then, the influences of cutting speed feed, vibration direction and vibration ampl...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
سعید امینی محمدجواد ناطق امیر عبداله

vibration cutting (vc), elliptical vibration cutting (evc) and ordinary cutting (oc) of in738 work-pieces have been experimentally investigated in the present research. the experiments were carried out by using single crystal diamond tool and ultra-precision cnc lathe. vibration frequency is 36.16khz and the amplitude is . the influence of various cutting parameters including cutting speed, fee...

Nowadays the surface texturing has been widely recognized as a usable capability to improve the tribological systems. In this paper, ultrasonic assisted turning (UAT) isperformed to create the micro textures on the flat faces. Micro surface texturing ismade on the Al7075-T6 by the UAT in the face turning process. Then, the influences of cutting speed feed, vibration direction and vibration ampl...

Nowadays the surface texturing has been widely recognized as a usable capability to improve the tribological systems. In this paper, ultrasonic assisted turning (UAT) isperformed to create the micro textures on the flat faces. Micro surface texturing ismade on the Al7075-T6 by the UAT in the face turning process. Then, the influences of cutting speed feed, vibration direction and vibration ampl...

1999
E. Brinksmeier

Diamond turning of steel alloys is impractical due to catastrophic tool wear caused by a combination of chemical and abrasive wear. In the literature, several modifications of the cutting process have been proposed, e.g. cutting in an inert gas atmosphere, cryogenic cutting and vibration assisted cutting, e.g. elliptical vibration cutting (EVC) [1-5]. In this work, the EVC method was investigat...

2009
A. KARABULUT

Many manufacturing defects could be seen in cylindrical turning. Some of these defects are: elastic deformation of work-piece, nonlinear backlash of cutting set – machine – workpiece, unknown geometry of untreated part, thermal deformations, vibration of set and machine. Deflection of workpiece under cutting forces will cause different levels of processing of workpiece 1 . Nonlinear backlash of...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
سعید امینی محمدرضا خسروجردی مهدی محمدی مهر

this research is carried out to design and manufacturing of lathe vibration tool and their tests. firstly, one-dimensional vibration tool is designed and made of the bending vibration mode. one-dimensional vibration tool with half piezoelectric rings is considered to excite the bending mode of tool. structure of vibration tool is designed in abaqus software about 20 khz and then is made with re...

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