Results 151 to 160 of about 4,614,192 (209)
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Scientific American, 2010
The article discusses how the ability to make cells using artificial genomes will influence basic biology. Topics includes an overview of how biologist J. Craig Venter and colleagues at the J. Craig Venter Institute in Rockville, Maryland, built a synthetic genome for a strain of the Mycoplasma mycoides bacterium.
David Biello, Katherine Harmon
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The article discusses how the ability to make cells using artificial genomes will influence basic biology. Topics includes an overview of how biologist J. Craig Venter and colleagues at the J. Craig Venter Institute in Rockville, Maryland, built a synthetic genome for a strain of the Mycoplasma mycoides bacterium.
David Biello, Katherine Harmon
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Tool-Life Distributions—Part 1: Single-Injury Tool-Life Model
Journal of Engineering for Industry, 1977The statistical variability of tool life in production machining must be accounted for in any rational design of large-volume or automated manufacturing systems. The probabilistic approach needed for such a design is presently limited by lack of data on tool-life distributions and by lack of knowledge of the underlying causes giving rise to tool-life ...
S. Ramalingam, J. D. Watson
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Journal of Engineering for Industry, 1981
A tool-life model based on the assumption that wear and fracture are the causes of tool death is re-examined from the theoretical standpoint, and extended to include the effect of cutting speed on the fracture-induced failure rate. A stochastic model for multi edge cutting tools is also proposed.
ROSSETTO, SERGIO, ZOMPI' A.
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A tool-life model based on the assumption that wear and fracture are the causes of tool death is re-examined from the theoretical standpoint, and extended to include the effect of cutting speed on the fracture-induced failure rate. A stochastic model for multi edge cutting tools is also proposed.
ROSSETTO, SERGIO, ZOMPI' A.
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Tool Design, Tool Wear and Tool Life
2009Metal cutting is a process of removing material from a workpiece in the form of chips using single- or multi-point cutting tools with a clearly defined geometry. To some extent, the performance of a cutting tool determines the cutting behaviour and the process capability.
Jiwang Yan +2 more
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Multispeed tool-life tests with radioactive tools
Wear, 1978A multispeed testing method for obtaining tool-life parameters using radioactive tools has been developed. By suitable interpolation of the instantaneous rates of absolute wear measured for a number of discrete cutting speeds, the corresponding tool-life values can be deduced in a test employing a single cutting edge.
R. Chawla, S.L. Bhattacharya
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2011
The term tool life behaviour was introduced to describe material and cutting tool material behaviour during the machining process. The following definition applies:
Fritz Klocke, Aaron Kuchle
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The term tool life behaviour was introduced to describe material and cutting tool material behaviour during the machining process. The following definition applies:
Fritz Klocke, Aaron Kuchle
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2009
Tool life T is the period of time, expressed in minutes, for which the cutting edge, affected by the cutting procedure, retains its cutting capacity between sharpening operations. The cutting edge remains functional until a certain amount of wear has occurred (3.3).
Heinz Tschätsch, Anette Reichelt
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Tool life T is the period of time, expressed in minutes, for which the cutting edge, affected by the cutting procedure, retains its cutting capacity between sharpening operations. The cutting edge remains functional until a certain amount of wear has occurred (3.3).
Heinz Tschätsch, Anette Reichelt
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Stone Tool Life Meets Everyday Life
2018Often, the lives of people in the past were constrained by their basic everyday needs and what they needed to accomplish. This chapter considers both how people conducted certain minimal activities everyday to meet those needs and how those activities left traces in the archaeological record.
Philip J. Carr, Andrew P. Bradbury
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2012 7th International Forum on Strategic Technology (IFOST), 2012
The paper contains the description of a method, equipment and results for predicting cemented carbide cutting inserts wear resistance by measuring their thermal diffusivity. Strong correlation between wear resistance and thermal diffusivity was found. The presented method has been patented.
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The paper contains the description of a method, equipment and results for predicting cemented carbide cutting inserts wear resistance by measuring their thermal diffusivity. Strong correlation between wear resistance and thermal diffusivity was found. The presented method has been patented.
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1989
Abstract Cutting tool wear is a production management problem for manufacturing industries. It occurs along the cutting edge and on adjacent surfaces. This article describes steady-state wear mechanisms, tertiary wear mechanisms, and tool replacement. It provides information on tool failure and its consequences.
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Abstract Cutting tool wear is a production management problem for manufacturing industries. It occurs along the cutting edge and on adjacent surfaces. This article describes steady-state wear mechanisms, tertiary wear mechanisms, and tool replacement. It provides information on tool failure and its consequences.
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