Wednesday, February 29, 2012

Samet TÜRKMEN-030060143-1st week answers






                 Shop-floor programming:( programming)

                old answer: (better)

                 In shop-floor programming, CNC programming software is used directly on the machine-tool controller. This allows higher-level geometry and processing information to be sent to the CNC controller instead of G-code. G-code is then developed by the dedicated computer under control of the machine  operator. The advantage is that any changes that are made to the machining program are sent back to the programming group, are stored as a shop-proven design iteration, and can be re-used or standardized across parts. Before production begins, the programs must be verified, either by viewing a simulation of the process on a monitor or by first making the part from an inexpensive material, such as aluminum, wood, wax or plastic.

      (Kalpakjian S., Schmid S.R.,Manufacturing Engineering and Technology, 5th Edition, pg. 1160)


               new answer:


               The shop floor programming feature of a CNC makes it very easy to program directly from a part drawing.Even a relatively inexperienced programmer can obtain quickly and accurate results by inputting part dimentional data direct to machine tool.SFP provides  the capability to run in backround mode and create a 
new program or modify an existing program right at the machine while the machine is busy cutting a previously programmed part. The operator/programmer can enter the material name and part-shape dimensions and the system will automatically determine tool types, speeds, feeds, and cutting tool order.

       (Luggen W., Computer numerical control, p.314) 

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