1 - In machine tools workings, what is the tapping?

_ It’s the operation that permits you to engrave the ID-code on the finished piece. It’s the general term used to define all the operations of raw roughing. It’s the operation that permits you to create a thread within a hole. It’s the operation that permits you to create a thread on a screw.

2 - What is a contour working?

_ It’s an operation that permits you to work with the tool side the walls of a model. It’s a preliminary working of the fixed punching cycles. It’s an operation that permits you to level the raw material to bring it to the right dimensions. It’s an operation that makes all the joints existing in the model by using a spherical tool.

3 - With Mastercam, as with all the other CAM systems, it is not possible to create workings on planes different from the defined one.

_ True False

4 - What is meant with the "stock to leave" terms?

_ The remaining material of a working that must be manually removed. The difference in the quantity of material between the starting block and the finished piece. The material removed during each rub. The quantity of remaining material left during a working round the selected geometry.

5 - In 2 or 3 axes milling workings, what is the restarting?

_ It’s the operation that permits you to move the raw from the main to the secondary spindle. It’s the phase which permits you to restart the working after a tool brake. It’s the operation which removes, with a smaller tool, the material remained from the previous workings. It’s the time that passes between the roughing and the finishing operations.

6 - Specific workings permits you to make logos and textes cut workings on one face of the piece you are working with.

_ True False

7 - What is the dive degreasing?

_ A particular working where the raw is completely dip in a cooling liquid. A working which makes big removals with the use of cutters that work by head. A kind of working which permits you to empty only the circular pockets. It’s the pre-punching phase needed for tapping cycle.

8 - 3 axes workings differently from 2 axes one don't need finish operations, because surfaces are excellently elaborated.

_ True False

9 - What is the rapid tool movement?

_ It’s the movement a tool machine does for the tool change between two operations. It’s the tool movement planned at the maximum possible feed. It’s the movement the tool does during the phase of material removal. It’s the maximum number of turns the tool can perform during a working.

10 - To start a punching cycle the head of the machine tool must have a adequate device to permit the assembly of motorized tools.

_ True False