Operational Procedure

1. Purpose

The purpose of this procedure is to ensure the safe and efficient operation of the CNC milling machine to produce precision components within [Your Company Name].

2. Scope

This procedure applies to all machinists and operators responsible for operating the CNC milling machine in the manufacturing department.

3. Responsibilities

• Machine Operator: Responsible for the setup, operation, and shutdown of the CNC milling machine.

• Shift Supervisor: Ensures that the machine operator follows this procedure and addresses any issues that arise.

4. Materials and Equipment

• CNC milling machine

• Safety goggles and gloves

• Raw material (e.g., aluminum block)

• Cutting tools (e.g., end mills, drills)

• Coolant

• Lubrication oil

• Cleaning cloth

5. Steps

1. Pre-Operation Check:

   • Verify that the CNC milling machine is in good working condition.

   • Ensure that the work area is clean and free of obstructions.

   • Check that all safety guards are in place and functioning.

   • Inspect the cutting tools for wear or damage; replace if necessary.

   • Confirm that the correct program is loaded into the CNC controller.

2. Setup:

   • Place the raw material securely in the machine vise or fixture.

   • Select the appropriate cutting tool and install it in the tool holder.

   • Set the correct tool offsets and work coordinates in the CNC controller.

   • Load the CNC program for the specific part to be machined.

3. Operation:

   • Put on safety goggles and gloves.

   • Start the coolant flow and lubrication system.

   • Begin the machining operation by pressing the start button on the CNC controller.

   • Monitor the machine for any unusual noises or vibrations.

   • Ensure that the coolant is flowing properly and adjust if necessary.

   • Observe the machining process to ensure the part is being produced to the correct specifications.

4. Quality Control:

   • Once the operation is complete, remove the finished part from the machine.

   • Measure the part using precision measuring tools (e.g., calipers, micrometers) to ensure it meets the required tolerances.

   • Document the measurements in the quality control log.

5. Shutdown:

   • Turn off the CNC milling machine and coolant system.

   • Clean the machine and work area, removing any metal chips or debris.

   • Perform a visual inspection of the machine for any signs of wear or damage.

   • Report any issues to the shift supervisor.

6. Safety Precautions

• Always wear safety goggles and gloves while operating the CNC milling machine.

• Never leave the machine unattended while it is running.

• Ensure all safety guards are in place before starting the machine.

• Follow lockout/tagout procedures if maintenance is required.

7. References

• CNC Milling Machine User Manual

• Safety Data Sheet (SDS) for Coolant and Lubrication Oil

• Company Safety Policy Document

8. Approval and Revision History

Date	Version	Description	Approved By
2055-01-15	1.0	Initial Release	[Your Name], Operations Manager
2055-06-10	1.1	Updated Safety Precautions	Jane Smith, Safety Officer

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