Asti Electronics India Machine Operator Interview Questions and Answers

CNC stands for Computer Numerical Control.

• CNC is a technology that uses computerized systems to control machine tools.

• It involves the use of coded instructions to automate the operation of machines.

• CNC machines are widely used in manufacturing industries for tasks like cutting, drilling, and shaping materials.

• Examples of CNC machines include CNC mills, lathes, routers, and plasma cutters.

A vernier caliper is a measuring instrument used to measure the dimensions of an object with high accuracy.

• It is used to measure the length, width, and thickness of objects.

• It has two jaws, one fixed and one movable, which can be adjusted to fit the object being measured.

• The vernier scale on the caliper allows for precise measurements to be taken.

• It is commonly used in machining, engineering, and manufacturing industri...read more

The list count of vernier caliper is 20.

• The vernier caliper has 20 divisions on its main scale.

• Each division is equal to 1mm.

• The vernier scale has 19 divisions.

• The smallest division on the vernier scale is 0.05mm.

• To get the measurement, add the main scale reading to the vernier scale reading.

There are typically three types of offset in CNC: tool length, cutter radius, and workpiece origin.

• Tool length offset compensates for the length of the tool.

• Cutter radius offset compensates for the radius of the cutting tool.

• Workpiece origin offset sets the origin point for the CNC machine to begin cutting.

• Other types of offset may include fixture offsets and wear offsets.

To enter offset 15micron in dia less, use the G10 command and specify the offset value.

• Use the G10 command to enter the offset value

• Specify the offset value as 15micron in dia less

• Make sure to save the offset value using the G54-G59 commands

• Verify the offset value using the G54.1-G59.3 commands