Smiiel - A Unit Of Motherson Sumi System VMC Operator and Setter Interview Questions, Process, and Tips

GD&T SYMBOLS AND VIEW IDENTIFYING AND BASIC MATHEMATICS

Q1. How to take center from the edge of a job?
Ans. 
To take center from the edge of a job, use a dial test indicator to find the edge, then move half the distance to locate the center.
• Use a dial test indicator to locate the edge of the job accurately.

• Once the edge is found, move the indicator half the distance towards the center to find the center point.

• Repeat the process from different edges to ensure accuracy in locating the center of the job.

• Adjust the position of th...read more
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Q2. How to do program matching on any profile
Ans. 
Program matching on any profile involves ensuring the program is compatible with the machine's capabilities and specifications.
• Understand the machine's capabilities and specifications

• Analyze the program code to ensure it is compatible with the machine

• Make necessary adjustments to the program if needed

• Test the program on the machine to ensure proper functioning
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Q3. Meaning of G80, G43, G49 and some codes
Ans. 
G80, G43, G49 are G-codes used in CNC machining to control various functions such as tool length compensation and tool radius compensation.
• G80 is used to cancel any canned cycle mode

• G43 is used for tool length compensation

• G49 is used to cancel tool length compensation

• G-codes are standardized codes used in CNC programming to control machine functions
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Q4. Write Drilling opretionstep by step
Ans. 
Drilling operation involves setting up the machine, selecting the appropriate drill bit, setting the speed and feed rate, and monitoring the process.
• Set up the VMC machine by securing the workpiece and selecting the appropriate tool holder.

• Select the correct drill bit based on the material being drilled and the desired hole size.

• Set the speed and feed rate on the machine control panel according to the material and dril...read more
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