Implementation of ultra-high speed machining with an edge tool

2021 ◽  
Author(s):  
V. M. Korneeva ◽  
S. S. Korneev
Keyword(s):  
High Speed ◽  
High Speed Machining ◽  
Ultra High Speed ◽  
Edge Tool

Modeling Machining at High Speeds as a Fluid Mechanics Problem

2008 ◽  
Author(s):  
Roman V. Kazban ◽  
James J. Mason
Keyword(s):  
Fluid Mechanics ◽  
Stagnation Point ◽  
Potential Flow ◽  
High Speed ◽  
Material Behavior ◽  
High Speed Machining ◽  
Flow Solution ◽  
High Speeds ◽  
Ultra High Speed ◽  
Very High

Even though many models for machining exist, most of them are for low-speed machining, where momentum is negligible and material behavior is well approximated by quasi-static plastic constitutive laws. In machining at high speeds, momentum can be important and the strain rate can be exceedingly high. For these reasons, a fluid mechanics approach to understanding high-speed, very high-speed, and ultra-high-speed machining is attempted here. Namely, a potential flow solution is used to model the behavior of the material around a sharp tool tip during machining at high speeds. It is carefully argued that the potential flow solution is relevant and can be used as a first approximation to model the behavior of a metal during high-speed, very high-speed, or ultra-high-speed machining events; and at a minimum, the potential flow solution is qualitatively useful in understanding mechanics of machining at high speeds and above. Interestingly, the flow solution predicts that there is a stagnation point on the rake face, not at the tool tip as is usually assumed. Because the stagnation point is not at the tool tip, the flow solution predicts a significant amount of deformation in the workpiece resulting in large residual strains that may lead to a temperature rise on the finished surface.

162 Development of High-Functional Tap for realizing Ultra High Speed Machining

2014 ◽  
Vol 2014.49 (0) ◽  
pp. 121-122
Author(s):  
Yasuyoshi SAITO ◽  
Takeshi YAMAGUCHI ◽  
Kei SHIBATA ◽  
Yuki KADOTA ◽  
Takeshi KUBO ◽  
...  
Keyword(s):  
High Speed ◽  
High Speed Machining ◽  
Ultra High Speed

Ultra-High-Speed Machining: A Review and an Analysis of Cutting Forces

1973 ◽  
Vol 187 (1) ◽  
pp. 625-634 ◽  
Author(s):  
G. Arndt
Keyword(s):  
Cutting Forces ◽  
High Speed ◽  
Physical Factors ◽  
High Speed Machining ◽  
Work Related ◽  
Rate Dependent ◽  
High Speeds ◽  
Ultra High Speed ◽  
Very High ◽  
Cutting Speeds

As part of the search for a new cutting mechanism, a few largely empirical investigations into ultra-high-speed machining (velocity greater than 500 ft/s) have been performed in the past. A comprehensive review of this and other work related to machining at very high cutting speeds is presented and the physical factors predominating in UHSM are discussed. As a consequence of this a new theory of cutting forces at ultra-high speeds is presented, based on inertia and temperature effects, adiabatic shear, and strain-rate dependent yield stress. This theory shows that workpiece properties greatly influence force behaviour, the latter determining the feasibility of machining at ultra-high speeds.

Ultra-High-Speed Machining: A Review and an Analysis of Cutting Forces

1973 ◽  
Vol 187 (1) ◽  
pp. 625-634 ◽  
Author(s):  
G. Arndt
Keyword(s):  
Cutting Forces ◽  
High Speed ◽  
Physical Factors ◽  
High Speed Machining ◽  
Work Related ◽  
Rate Dependent ◽  
High Speeds ◽  
Ultra High Speed ◽  
Very High ◽  
Cutting Speeds

As part of the search for a new cutting mechanism, a few largely empirical investigations into ultra-high-speed machining (velocity greater than 500 ft/s) have been performed in the past. A comprehensive review of this and other work related to machining at very high cutting speeds is presented and the physical factors predominating in UHSM are discussed. As a consequence of this a new theory of cutting forces at ultra-high speeds is presented, based on inertia and temperature effects, adiabatic shear, and strain-rate dependent yield stress. This theory shows that workpiece properties greatly influence force behaviour, the latter determining the feasibility of machining at ultra-high speeds.

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