Results 271 to 280 of about 42,092 (305)

Modelling of Ductile Mode Cutting

2019
Although the demand for industrial applications for brittle material growing rapidly, the manufacturing of brittle material for making precise components is very challenging due to its poor machinability and brittleness. In this chapter, theoretical analyses are given based on brittle material’s mechanical properties as the functions of temperature and
Kui Liu, Hao Wang, Xinquan Zhang
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Ductile Mode Cutting Characteristics

2019
Ductile mode cutting characteristics and material removal mechanism of brittle material are discussed using tungsten carbide as an example work material in this chapter. Grooving and milling tests are designed and conducted to investigate their cutting modes.
Kui Liu, Hao Wang, Xinquan Zhang
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Selection of cutting modes for basalt plastics

Technology of Metals, 2022
The analysis of the prospects for the use of basalt plastics in various industries has been carried out. The types of cutting tools used for machining PCM based on basalt fiber were studied. The results of mechanical processing of samples of basalt plastics by an end mill made of high-speed steel R6AM5, using a machine with numerical control in various
I. S. Bolotnikov, E. A. Kosenko, P. E. Demin   +2 more
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Optimal Stochastic Control of the Cutting Modes on the Grinders

IFAC Proceedings Volumes, 1986
Abstract The problems of control algorithm synthesis of grinding technological process are discussed here, with stochastic properties of control object and technological limitations being taken into account. This task is effected by the optimization method "in average" using law distribution characteristics of control object parameters and ...
V.N. Michelkevitch, V.G. Schetinin
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Ductile Mode Cutting Mechanism

2019
In this chapter, ductile mode cutting mechanism of brittle material is analysed theoretically and systematically. The coexisting crack propagation and dislocation extension in the chip formation zone are examined based on an analysis of cutting geometry and forces in the cutting zone, both on Taylor’s dislocation hardening theory and strain gradient ...
Kui Liu, Hao Wang, Xinquan Zhang
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Ductile Mode Cutting of Silicon

2019
In wafer fabrication, most machining processes such as slicing, edge grinding, finishing, lapping, polishing, back thinning and dicing, are based on grinding or/and abrasive process, which always generate micro cracks and subsurface damage. In this chapter, theoretical analysis on ductile mode cutting of silicon wafer shows that machined silicon ...
Kui Liu, Hao Wang, Xinquan Zhang
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Suppression of the B-mode in SC-Cuts

2007 IEEE International Frequency Control Symposium Joint with the 21st European Frequency and Time Forum, 2007
We have found it possible to suppress the B-mode of fundamental mode SC-cuts over wide temperature ranges by imbedding the B-mode in a cluster of C-mode anharmonics with choice of diopter. This work presents a variety of theoretical results and experimental data supporting the approach.
E. P. EerNisse, D. Puccio
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Thermally Assisted Ductile Mode Cutting

2019
The growing necessity for advanced manufacturing technologies brings forth initiatives to incorporate thermal effects in micromachining of difficult-to-machine brittle material. While conventional heating methods exist in the macroform and are infeasible for micro-cutting applications, the fundamental concepts of heating are miniaturized to enable ...
Kui Liu, Hao Wang, Xinquan Zhang
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Ductile Mode Cutting of Calcium Fluoride

2019
Calcium fluoride is one of the favourite optical materials in the advanced optics applications owing to its superior optical transmission and mechanical properties. While micromachining techniques have evolved to enhance the production process for optical components, this chapter will focus on the fundamental aspects to achieve ductile mode machining ...
Kui Liu, Hao Wang, Xinquan Zhang
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Ductile Mode Cutting of Tungsten Carbide

2019
Cutting experiments are carried out to evaluate the cutting performance of tungsten carbide under nanometer scale chip thickness using a 5-axis CNC machining centre with CBN tools. The cutting forces are measured using a three-component dynamometer. Machined workpiece surface topography, chip formation, and tool wear are examined using an OMIS and SEM.
Kui Liu, Hao Wang, Xinquan Zhang
openaire   +1 more source