Global Autotech VMC Machine Operator Interview Questions and Answers

Q1. What is g code
Ans. 
G code is a programming language used to control CNC machines.
• G code is a standardized language used to instruct CNC machines on how to perform specific tasks.

• It consists of letters and numbers that represent different commands and parameters.

• For example, G00 is a rapid move command that tells the machine to move quickly to a specified position.

• G01 is a linear interpolation command that tells the machine to move in a s...read more
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Q2. What is m code
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M code is a standard set of machine codes used to control CNC machines.
• M codes are used to activate or deactivate certain functions on a CNC machine.

• They are typically used for tool changes, coolant control, spindle speed, and other machine functions.

• Examples of M codes include M06 for tool change and M08 for coolant on.
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Q1. Haw to give offset
Ans. 
To give offset in CNC machining, adjust the tool position relative to the workpiece.
• Access the offset settings on the CNC machine control panel.

• Enter the desired offset values for length, width, and height adjustments.

• Verify the offset adjustments by running a test program on scrap material.

• Make fine adjustments as needed to achieve the desired machining results.
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Q2. Haw to start cnc
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To start a CNC machine, power on the machine, load the program, set the workpiece, and press the start button.
• Power on the CNC machine by flipping the switch

• Load the program into the machine's control panel

• Set the workpiece securely in place on the machine bed

• Press the start button to begin the machining process
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Q1. About HIL testing
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Q2. About vector tools
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Q1. Technical knowledge about area
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Q2. English is required as fluent
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Question abou TPM, OEE, six Sigma, lean manufacturing,kaizen,poka yoke etc

Q1. No sales discuss the directly give you ofer with hike of 30-40%
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Q1. Write and explain GD&T symbols?
Ans. 
GD&T symbols are used to specify the geometric requirements of a part or assembly.
• GD&T stands for Geometric Dimensioning and Tolerancing

• Symbols include: flatness, circularity, perpendicularity, concentricity, position, and more

• Each symbol has a specific meaning and is used to communicate precise engineering requirements

• GD&T is used in industries such as aerospace, automotive, and manufacturing

• Example: A position symbol...read more
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Q2. Explain Cp, Cpk & Pp, Ppk?
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Cp, Cpk, Pp, and Ppk are statistical process control indices used to measure process capability and performance.
• Cp and Cpk measure how well a process meets its specifications, with Cpk being more accurate for non-centered processes.

• Pp and Ppk measure how well a process performs relative to its natural variation, with Ppk being more accurate for non-centered processes.

• All four indices are calculated using the process me...read more
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Q1. Related to GD&T, CNC programming knowledge, SPC, Fixture design and development, Tool design and development.
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Casting should be thorough

Aluminium die Casting

Q1. Cnc machining operation
Ans. 
CNC machining operation involves using computer-controlled machines to shape materials like metal or plastic.
• CNC machines use computer programs to control the cutting tools and produce precise shapes.

• Operators must have knowledge of programming, tooling, and materials to ensure accurate results.

• Examples of CNC machining operations include milling, turning, drilling, and grinding.
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Q2. Machining mantines
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