What is ADMI?

ADMI or MM2011 is Advanced Machining and Inspection. In our context, advanced machining is the study on how to improve the machining process from CNC (Computer Numerical Control) to fully integrated CAD and CAM operations. Once again, CAD is Computer Aided Design and CAM is Computer Aided Machining. In CNC, the operator reads the drawing and based on the geometrical shape of the workpiece, writes the code that drives the machine to move the tool to cut from point to point. It was an improvement from the previous case of conventional machining process where the operator needs to drive the tool himself to achieve the shape. Positioning of the tool will be more precise and more accurate than what human manipulation can achieve. However, if you think a little deeper, you will realise that there could be thousands of points on a simple appliance, such as a calculator. Keying these thousands of points can prove to be erroneous and time consuming. If we had designed the calculator using a CAD software, why not we use the data inside the CAD file to generate all these points and simply get the tool to cut along these points and we could save time and effort during the process. Furthermore, there is no error due to typing.

Using a CAM software, the computer reads in the CAD file, and based on the user's input generate the tool paths meant for each one of the tools involved. Finally, it can generate the coding that is required for the CNC machine to cut the workpiece out.


After CAD CAM integration, if the part that comes out from the machine is not quite the same as what has been designed, the whole process does not make sense at all. Bear in mind that, it is no longer a piece of drawing on the drawing board, it is an actual workpiece that has gone through the various procedures of cutting. That is why we need to check the size of the workpiece and make sure that it tallies with what the designer wants. In the case of CNC, the dimensions tend to be simpler, checking the size does not impose too much problem. However, as the workpieces get more and more complicated, inspection techniques also need to be improved. That is why we need to include inspection after we have done advanced machining. It covers special inspection techniqes, using of optical, pneumatic, electronic measuring instruments to measure the parts.

Pneumatic instrument that we are using:


There are some inspection videos on Youtube:
External Taper
Internal Taper
Comprehensive Measurement