Flexible in-process inspection through direct control

Enabling cognitive manufacturing through automated on-machine measurement planning and feedback

“…A question however is often raised about the validity of dimensional measurement on the same machine where the part is cut. While measurement performed by a machine tool is subject to some of the error-producing factors during the machining process, the errors that are most difficult to eliminate through machine maintenance and certification can easily be detected and accounted for during in-process measurement [10].…”

Reconfigurable Mechanisms for Application Control (RMAC): Applications

“…Prior to the RMAC (Reconfigurable Mechanisms for Application Control ) architectural development, direct control had been demonstrated on both machine tools and robots, under the program acronym DMAC, and using applications in Unigraphics, CATIA, Alias Wavefront, GibbsCAM, and PC-DMIS [2][3][4][5] to directly control various mechanisms. Unlike conventional NC control methods that use APT, CL, and M&G files to bridge CAD/CAM applications to machine controllers, direct control connects modeling and process control applications directly to a machine.…”

“…Direct control reconfigures the controller software to add the capabilities of modern CMM's and, through a device driver, uses PC-DMIS to inspect parts in-process. Reference [4] justifies use of a machine tool as a CMM because tool loads and machine compliance are non-issues when inspecting parts. Fig.…”

A metaheuristic for fast machining error compensation

“…A major problem with CMMs in a modern manufacturing environment is the difficulty associated with taking advantage of the measurement results (Davis et al 2006). The CMM reports rarely present direct values of the correction necessary to modify setup data of CNC (Schwenke et al 2008).…”