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SUMMARY:Simple Structural Models to Control Sheet Metal Spinning - James P
 olyblank - PhD Student
DTSTART:20140606T140000Z
DTEND:20140606T143000Z
UID:TALK52905@talks.cam.ac.uk
CONTACT:Lorna Everett
DESCRIPTION:Metal sheet spinning is a process where a piece of sheet metal
  is spun about its axis\, while a tool is moved into it to gradually form 
 it into an axisymmetric product - rather like pottery spinning\, but with 
 sheet metal. However\, if the tool is not controlled carefully\, the targe
 t product will not be formed accurately\, or worse\, it will wrinkle up or
  tear. Conventionally a skilled workman\, with only an intuitive understan
 ding of the process\, would manually control the tool\, watching the part 
 and adapting his approach as he forms it. We have tried to automate this b
 y fitting various sensors onto our spinning machine\, and use only simple 
 structural models within a closed-loop control system to work out how to a
 dapt the motion of the tool. I will give a case study where this approach 
 has worked\, and one where it hasn't\, and discuss the trade-off between t
 he accuracy of these simple models and the time to compute them.
LOCATION:Cambridge University Engineering Department\, LR3B
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