Results 251 to 260 of about 16,083,913 (302)
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2013
Cutting at high speeds has gained great importance in recent years after the technical prerequisites were met by cutting materials, main spindles of machines, feed drives and control.
Hans Kurt Tönshoff, Berend Denkena
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Cutting at high speeds has gained great importance in recent years after the technical prerequisites were met by cutting materials, main spindles of machines, feed drives and control.
Hans Kurt Tönshoff, Berend Denkena
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Aspects in Cutting Mechanism in High Speed Cutting
CIRP Annals, 1989Summary Since appr. 10 years the researches on high speed cutting (hsc) are one of the scientific key points of the Institute of Cutting Technology and Machine Tools (ITW) of the Technical University of Darmstadt. One of the essential results is the fact that just known cutting mechanisms in normal speeds are also valid for hsc.
H. Schulz, G. Spur
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Effect of Cutting Speed on Chip Fracture Strain in High Speed Cutting
Materials Science Forum, 2009This paper deals with the effect of cutting speed on chip fracture strain in high speed cutting. Firstly, a chip-fracture-strain-measuring device is designed and made according to chip breaking principle. Secondly, experiments are performed by the chip-fracture-strain-measuring device.
Hui Ping Zhang +3 more
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Performance of high-speed steel taps at high cutting speed
International Journal of Machining and Machinability of Materials, 2007The main goal of this paper is the evaluation of the performance of high-speed steel taps when machining grey cast iron at high cutting speeds. It is used for two types of high-speed steel, one with addition of vanadium (HSS-E) obtained by conventional method, classified as AISI M3 and other obtained by powder metallurgy (HSS-PM), classified as AISI M7.
Paulo Rosa Da Mota +3 more
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2009
In certain contexts, high speed cutting is only defined as machining at high cutting speeds (spindle speeds) and/or at high feed rates in order to achieve short machining- or lead times. However, for a reasonable classification, one has to consider the material to be machined (soft- or hard machining), the cutting materials and the metal removal rate.
Heinz Tschätsch, Anette Reichelt
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In certain contexts, high speed cutting is only defined as machining at high cutting speeds (spindle speeds) and/or at high feed rates in order to achieve short machining- or lead times. However, for a reasonable classification, one has to consider the material to be machined (soft- or hard machining), the cutting materials and the metal removal rate.
Heinz Tschätsch, Anette Reichelt
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Advanced Materials Research, 2011
Raising a cutting speed to above speed of a plastic wave of a workpiece material induces the high levels of the hydrostatic stresses in the shear zone, because a plastic wave traveling there becomes a shock wave. In order to ascertain the cutting phenomena occurring under the ultra high-speed cutting condition, the cutting experiments of a pure lead ...
Jun Shinozuka +2 more
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Raising a cutting speed to above speed of a plastic wave of a workpiece material induces the high levels of the hydrostatic stresses in the shear zone, because a plastic wave traveling there becomes a shock wave. In order to ascertain the cutting phenomena occurring under the ultra high-speed cutting condition, the cutting experiments of a pure lead ...
Jun Shinozuka +2 more
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Ultra-Precision High Speed Cutting
2021Today, the technology of high speed machining (HSM) is well understood and established for conventional turning and milling at high material removal rates. However, this is not the case for ultra-precision processes. Consequently, in this project the mechanisms of high-speed machining in the ultra-precision range were investigated for both, non-ferrous
Daniel Berger +3 more
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Adaptivity in the context of high speed cutting
PAMM, 2006AbstractThe purpose of this short work is the thermomechanical modeling of shear band and chip formation during high‐speed cutting. Shear bands develop in areas of maximal mechanical dissipation in which temperature‐dependent softening dominates strainand strain‐rate‐dependent hardening. In the simulations, the well‐known problem of the mesh‐dependence
Christian Hortig, Bob Svendsen
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Tool life at high cutting speeds
International Journal of Machine Tool Design and Research, 1977Abstract In this paper tool life test results obtained in the cutting speed range 90–1250 m/min are presented. The testing method involved variable speed machining of mild steel discs using infeed drive on a precision lathe. All tests were carried out using throw-away carbide tools under orthogonal cutting conditions and the cutting speed was ...
I.V. Rao, G.L. Lal
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The Application of FEA in High-Speed Cutting
Advanced Materials Research, 2011The history and application of the FEA are briefly presented in this paper. Several key technologies such as the building of material model, the establishment of the chip - tool friction model as well as meshing are described. Taking the high-speed cutting of titanium alloy (Ti - 10V - 2Fe - 3Al) as an example , reasonable cutting tools and cutting ...
Lian Qing Ji, Kun Liu
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