Paul Darcy, Jr. - Hamden CT William C. Harris - Derby CT Michael S. Torok - Cheshire CT Tahany El-Wardany - Hartford CT Peter Fitzpatrick - Chatham MA
Assignee:
Sikorsky Aircraft Corporation - Stratford CT
International Classification:
G06F 1900
US Classification:
700182, 703 2, 700280
Abstract:
A method of predicting the cutting speed for machining of titanium alloy comprising the steps of obtaining a first transfer function for a tool system, obtaining a second transfer function for a workpiece system, selecting from the first transfer function a first flexible mode, selecting from the second transfer function a second flexible mode, defining a natural frequency of the first flexible mode and the second flexible mode, calculating a tooth passing frequency using the defined natural frequency, accepting the calculated tooth passing frequency if the calculated tooth passing frequency differs from a second harmonic of a combined system formed of the tool system and the workpiece system and from at least one natural frequency corresponding to the tool system and the workpiece system, calculating a stable spindle speed, defining a cut depth using the calculated spindle speed.
John J. Barto - Cheshire CT Peter M. Walsh - So. Windsor CT Peter R. Fitzpatrick - Glastonbury CT Richard F. Dondero - So. Meriden CT Kenneth P. Demers - W. Hartford CT Stephen M. Gardner - Enfield CT
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
G06F 1546
US Classification:
364513
Abstract:
Machine operations are performed by a robot at a plurality of locations on a workpiece based on off-line data. The off-line data is corrected based on two levels of workpiece/robot alignment. First the robot determines the orientation of a fixture to which the workpiece is mounted by "touching-off" on known reference points (touchblocks) on the fixture. Coordinate data for the location of local features on the workpiece is corrected based on the first level of alignment and the positions of the local features are then sensed to provide a coordinate transformation for subsequent application to nominal machine operation location coordinates. The local features may be preassembly rivets and provide for individualized robot response on a workpiece-by-workpiece basis.
Mayo ClinicMayo Clinic Jacksonville 4500 San Pablo Rd S, Jacksonville, FL 32224 9049532000 (phone), 9049532898 (fax)
Mayo Clinic 200 1 St SW, Rochester, MN 55905 5072842111 (phone)
Education:
Medical School New York Medical College Graduated: 1983
Procedures:
Dialysis Procedures Nutrition Therapy
Conditions:
Acute Renal Failure Anemia Calculus of the Urinary System Chronic Renal Disease Hypertension (HTN)
Languages:
English Spanish
Description:
Dr. Fitzpatrick graduated from the New York Medical College in 1983. He works in Rochester, MN and 1 other location and specializes in Nephrology. Dr. Fitzpatrick is affiliated with Mayo Clinic, Mayo Clinic Hospital-Rochester Methodist Campus and Saint Marys Hospital.
Peter Fitzpatrick, Oceanside NY - CRNA (Certified registered nurse anesthetist)
Sunnyside Elementary School Marysville WA 1987-1993, Marysville Middle School Marysville WA 1993-1995, Marysville Junior High School Marysville WA 1995-1997