pineapple knurling pin

Designing The process and Quality Control Procedures for The knurled Big Round Head Dowel Pin

Process Design for Knurled Head Pin:

1.Material Selection: Begin with choosing the appropriate material for the knurled pin. The material should meet the required mechanical and corrosion resistance properties.

2.Cutting and Shaping: The initial step involves cutting the raw material to the desired length and forging it into a cylindrical form with big round head through the specific mold.


3.Heat Treatment: Depending on the material, heat treatment may be necessary to enhance its strength and hardness. Follow the recommended heat treatment process.


4.CNC Turning: CNC turning achieves precision tolerance and perfect surface.

5.Knurling: Knurling is the key process for creating the knurled head. It involves pressing the material with a patterned tool to create the desired texture on the pin.

6.Surface Finish: After knurling and heat treatment, ensure the surface finish meets the required standards. You may need to perform polishing or coating processes.

Quality Control: Implement a thorough quality control process during and after each step. This includes dimensional checks, visual inspections, and material testing.

Quality Control Procedures for Knurled Head Pin:

1.Incoming Material Inspection: Inspect the raw material for conformity to specifications, including material composition and dimensions.

2.In-Process Inspection: Implement regular checks during the manufacturing process. Verify the knurling pattern, dimensions, and surface finish.

3.Heat Treatment Verification: Ensure that the heat treatment process meets the specified parameters for hardness and metallurgical properties.

4.Final Inspection: Before shipping, conduct a comprehensive final inspection, including dimensional checks, visual inspection of knurled heads, and surface finish assessment.

5.Quality Records: Maintain detailed records of each step and inspection results. This helps trace and rectify any deviations in the process.

6.Customer Feedback Loop: Establish a feedback mechanism with customers, to address any quality concerns promptly.

Please keep in mind that this is a general guideline. It's essential to adapt these processes and quality control procedures to your specific requirements and the capabilities of your supplier. If you have any more questions or need further assistance, feel free to ask at email address cindy@njprecisionengineeringtech.com or at WhatsApp 86-13813884518.