CNC machining flow chart
Responsible Person |
CNC Machining Flowchart |
Form (document) |
Caveat |
Production Control |
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Production order (in-plant material) |
Production managers and salespersons need to be notified when the production department is unable to produce orders in a timely manner. |
Manufacturing instruction order (guest material) | |||
Material Man |
Material Requisition Form |
1. Products need to be effectively protected (reasonable placement: products should not exceed the pallet / no collision between products) |
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2. The incoming materials from the previous process must have qualified labels. | |||
Technician Shift/Team Leader |
Drawings |
1. Drawings need to be up-to-date and have stamped approval |
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2. Drawings need to be clear and easy to recognize | |||
procedural requisitions |
1. Correct program version |
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2. There are alkali washing processes need to consider the amount of alkali washing surplus | |||
Shift/Team Leader Quality Control |
Drawings |
1. The incoming material is consistent with the drawings |
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2. No missing machining/deformation/scratches in the previous process. | |||
Technician Shift/Team Leader |
Fixture drawings/tool lists |
1. Whether the fixture should be anti-slip effect |
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2. Whether the positioning datum of the fixture is reasonable | |||
3. Whether the employee is deformed when clamping, clamping is not in place | |||
Technician Shift/Team Leader |
Drawings |
1. The machine adjustment technician needs to check himself/herself |
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2. The adjusted products need to be separated and labeled, and can only be released after the quality control confirms that they are qualified. | |||
Quality Control |
First record |
1.QC confirms that the first piece is qualified before mass production. |
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Sample |
2. The first confirmed product is required |
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Operator |
First product drawing |
1. Products and fixtures need to be free of impurities/waste chipping. |
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2. Products and fixtures need to be free of impurities/waste chipping. | |||
3. Clamping needs to be firm, no safety hazards | |||
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1. Close the safety door during operation | |||
2. Machine abnormalities in a timely manner to stop and immediately report to the supervisor to deal with | |||
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1. No collision in dismantling workpieces | |||
2. Blow out the aluminum chips and oil with an air gun. | |||
3. Attention to the protection of personal safety | |||
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1. Blow the fixture clean with air gun, no impurities/waste chipping | |||
Operator quality inspection |
Process Inspection Record Sheet |
1. The product is free from pressure wound/deformation lines/step marks/burs/bumps and other defects. |
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2. Products need to measure the size of the 4 corners, after the process of alkali washing need to consider the residual amount of alkali washing | |||
3. Screw threads need to be through the gauge through / stop the gauge stop, the depth of OK | |||
4. The discovery of defects needs to be traced back in a timely manner. | |||
Operator |
Label |
1. Good products and defective products need to be isolated and labeled to differentiate them |
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Material Man |
2. Products need to be effectively protected (reasonable placement: products do not exceed the pallet / products do not collide with each other). |
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3. Product quantity/model/date/QC judgment, etc. |
Order process

Injection molding order process
