نتایج جستجو برای: cutting performance

تعداد نتایج: 1086184  

2001
Marcello Filgueira Daltro Garcia Pinatti

This paper shows the manufacture route of the bronze 4% weight diamond composite rope for direct application as diamond wires, and linear saws in the slabbing and cutting of dimension stones. This route consists of powder mix compaction, sintering and rotary forging techniques. Tensile tests were performed, reaching an ultimate tensile strength of 230MPa for the diameter of ∅=1.84mm. Scanning e...

Journal: :IJMMME 2014
Purna Chandra Mishra Dipti Kanta Das Susant Kumar Sahu

This study investigates the effects of cutting parameters on surface roughness (Raμm ), cutting temperature (T0C) at the chip tool interface and the material removal rate (MRR mm3/min) during hard machining of AISI 1015 (43 HRC) steel using carbide insert under dry and spray impingement cooling environment. A combined technique using orthogonal array and analysis of variance (ANOVA) was employe...

Journal: :Graphical Models 2012
Lubin Fan Min Meng Ligang Liu

In this paper we present the first comprehensive study and analysis on different sketchbased mesh cutting approaches. To compare a representative number of state-of-the-art sketch-based mesh cutting methods, we conduct a large scale user study which was carried out via extensive user experiments. To address the objective assessment of the performances of different algorithms, a complete framewo...

2014

Decision-tree-based packet classification algorithms such as HiCuts, HyperCuts, and EffiCuts show excellent search performance by exploiting the geometrical representation of rules in a classifier and searching for a geometric subspace to which each input packet belongs. However, decision tree algorithms involve complicated heuristics for determining the field and number of cuts. Moreover, fixe...

2014
S. R. Das R. P. Nayak D. Dhupal A. Kumar

The current experimental study is to investigate the effects of process parameters (cutting speed, feed rate and depth of cut) on performance characteristics (surface roughness, machining force and flank wear) in hard turning of AISI 4340 steel with multilayer CVD (TiN/TiCN/Al2O3) coated carbide insert. Combined effects of cutting parameter (v, f, d) on performance outputs (Ra, Fm and VB) are e...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1390

abstract the variables affecting the nature of reading comprehension can be classified into two general categories: reader’s variables, and text variables (alderson, 2000). despite the wave of research on vocabulary knowledge as reader’s variable, the role of this knowledge in c-test as a text-dependent test and its interaction with lexical cohesion of the test as a text feature has remained a...

2011
Miroslav RADOVANOVIC Milos MADIC

Laser cutting is one of the most widely used thermal energy based non-contact type advance machining process. In recent years, considerable experimental investigations have been carried out aiming at improving laser cutting process performance. This review paper aims at presenting the state of the art in the field of CO2 laser cutting of various engineering materials with special emphasis on ex...

2001
Fumihito Arai Takaharu Amano Toshio Fukuda Hiroshi Satoh

Recently, research works on the bio-engineering actively carried out, and the useful tool for the micromanipulation is also developed. Purpose of this research is to develop the minute size knife for the cutting of the minute object such as the cell. In this paper, we report on the microknife that cuts o the object by using ultrasonic vibration of the sharp needle. We employed the multilayer pi...

2017
Huiling Ding Yongzhen Zhang Zhitao He

The present study investigates the failure mechanisms of industrial fiber materials 13 a custom designed fiber cutting performance test bench. The fracture morpholog 14 fibers are examined by scanning electron microscopy. The analysis reveals that fiber cutting can be 15 distinguished according to four distinct stages of fiber failure represented by shearing, cutting, 16 brittle fracture, and t...

2013
Emel Kuram Babur Ozcelik

In machining industry, cutting fluids have an important role due to their lubrication, cooling and chip removal functions. Using of cutting fluids can improve machining process efficiency, tool life, surface quality and it can reduce cutting forces and vibrations. However, health and environmental problems are encountered with the use of cutting fluids. Therefore, there has been a high demand f...

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