نتایج جستجو برای: grinding

تعداد نتایج: 8022  

2010
Xuekun Li

Grinding is a complex material removal process with a large number of parameters influencing each other. In the process, the grinding wheel surface contacts the workpiece at high speed and under high pressure. The complexity of the process lies in the multiple microscopic interaction modes in the wheel-workpiece contact zone, including cutting, plowing, sliding, chip/workpiece friction, chip/bo...

Journal: :Dental materials journal 2007
Toshio Sato Hidekazu Takahashi Toshio Hongo Iwao Hayakawa

The purpose of this study was to evaluate the effect of degradation of a denture base resin on bond strength to relining resins. Denture base resin specimens were immersed under various conditions to simulate degradation. Tensile bond strength of denture base resin after immersion to relining resins was measured with or without surface grinding. The bond strength of denture base resin without g...

2011
M. GOSTIMIROVIĆ P. KOVAČ D. JEŠIĆ B. ŠKORIĆ B. SAVKOVIĆ

This paper focuses on the development of high temperatures in the cutting zone during high performance grinding. In order to identify the infl uence of grinding temperature on surface integrity, temperatures were measured in the workpiece surface layer under diff erent machining conditions. Beside this, under the same conditions, the surface layer properties of the workpiece material were deter...

Journal: :IJMTM 2007
Eric R. Marsh Jeremiah A. Couey R. Ryan Vallance Allen Y. Yi

This work presents a system of measuring grinding forces in precision applications. Several experiments demonstrate the performance in monitoring diamond wheel dressing, detecting workpiece contact, and process monitoring. The system appears promising for monitoring precision wafer grinding since this approach provides excellent sensitivity, high signal resolution, and good bandwidth. INTRODUCT...

2013
Daria A Tsareva Gerhard F Ecker

Publicly open databases of small compounds have become an indispensable tool for chemoinformaticians for collection and preparation of datasets suitable for drug discovery questions. Since these databases comprise compounds coming from structure-activity relationship (SAR) studies performed by different research groups, they are very diverse with respect to the biological assays used. In the pr...

Journal: :Journal of nematology 1997
S R Stetina E C McGawley J S Russin

A technique based on physical maceration of root tissue was developed to extract vermiform and swollen stages of Meloidogyne incognita and Rotylenchulus reniformis. Experiments conducted on soybean and tomato evaluated the efficiency of method (stir, grind), NaOC1 concentration (0%, 0.5%), and duration (lx, 2x) on extraction of nematodes and eggs from 60-day-old populations. Root-associated pop...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2009
mahdi irannajad samira rashidi akbar farzanegan

cement powder size classification efficiency significantly affects quality of final product and extent of energy consumption in clinker grinding circuits. static and dynamic or high efficiency air separators are being used widely in closed circuit with multi-compartment tube ball mills, high pressure grinding rolls (hpgr) and more recently vertical roller mills (vrm) units in cement plants to c...

Journal: :international journal of advanced design and manufacturing technology 0
ahmadreza fazeli ebrahim sharifi

in this project creep feed grinding process of gas turbine blade root is investigated with the aim of consistant and controlable production. inthispaper, effectiveness of creep feed grinding process prometers suchas wheel speed, workpiece speed, grind depth and dresser speed are investigated. this investigation include their interaction on thelob of gas torbine blade root, as amajor cause of a ...

Journal: :CIRP Journal of Manufacturing Science and Technology 2015

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