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Mechanical Strain Modeling by Simulation and Visualization in Machining

A technological breakthrough developed by USU professors can be used to model and predict material and tool behavior during machining processes for optimized machining processes and improved tool life. The technology has been used to develop a preliminary computer program to provide visualizations of strain and wear on materials and tools.
   
Applications
Features and Benefits
  • CNC machining / controllers:
    • Drilling, Milling, Cutting, Lathes, etc.
  • CAD / CAM software
  • Machining educational and training programs
  • Provides more accurate material properties at high strain-rates and temperatures, limiting tool wear and optimizing machining operations
  • Provides near real-time modeling, saving time over existing FE methods
  • Can be embedded into current CNC software systems, reducing capital expenditures
 
Technology
The methodology determines tool-chip friction and stagnation point position on a cutting tool. It includes measuring a cutting force to thrust force ratio and measuring chip thickness produced by applying a cutting tool to a material. Material strains, strain-rates, temperatures, and stresses are calculated from this information. The computer program based on this technology, called Vmachining, allows visualization and simulation of machining processes, and selection of correct machining parameters to produce high-quality products at reduced costs and high productivity.
 
Development Stage
To date, it has been validated using aluminum, steel, titanium, and other alloys over wide ranges of conditions. The database can easily be expanded to include other metals and metal alloys.
 
U.S. Patent No. 7,240,562
 
CONTACT INFORMATION
Glenn Whichard
Senior Commercialization Associate
Physical Sciences
Glenn.Whichard@usu.edu
(435) 797-9604
Reference: W04002
www.ipso.usu.edu

 

 

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