Automatic machinability measuring and machining methods and apparatus therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Feb 8, 2000
Grant Date -
N/A
app pub date -
Aug 31, 1998
filing date -
Aug 31, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for measuring the machinability of a material which includes piercing a hole through a material to be tested while simultaneously measuring a pierce time duration, T, of the piercing step, and calculating a machinability number from the pierce time duration. Also provided are methods for determining the machining speed of a material and for machining a material which calculate a machining speed for a material based upon the machinability number of the material. The methods used to measure the machinability number and calculate a machining speed for a particular material can include any combination of machining operations, including but not limited to AWJ milling processes. Also provided is an apparatus which detects the time duration a piercing force takes to create a pierce-through condition through a material. The apparatus includes any of a pressure sensor, an acoustic sensor, an optical sensor, a load cell, a mechanical switch, and combinations thereof to measure the pierce-time duration.
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