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Common Secondary Machining Processes In Plastics Manufacturing

During injection molding, the workpiece first undergoes several rough cuttings to help it get close to the finished dimensions and shape. Afterward, there is cutting to achieve the final tolerance and dimension. The processes used include CNC machining, turning, milling, drilling, grinding, and tapping.

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Common Secondary Machining Processes In Plastics Manufacturing

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  1. Common Secondary Machining Processes In Plastics Manufacturing

  2. For creating workpieces comprising many processes, the secondary machining method is economical. To get the optimum results, several operations are performed in a predetermined order during the machiningb process. Primary manufacturing techniques like CNC or injection moulding are followed by secondary machining operations.

  3. Drilling This is a secondary machining procedure known as computer numerical control (CNC), which makes holes in a workpiece using a round cutter. Although milling machines can also be utilised, specially built drill pressing machines are employed in this operation.

  4. Milling During milling, a multi-point rotary cutter curves gear teeth, deep threads, or slots onto the workpiece. Milling is a secondary machining process that provides a fining coat to the workpiece during the injection molding.

  5. Turning By turning the workpiece while a cutting tool moves in a linear motion to produce the final tube-shaped piece, the turning process can be carried out either manually or automatically. Higher productivity, consistency, and efficiency are all made possible by using CNC.

  6. Grinding Injection moulding requires a tolerance surface finish, which is where surface grinding machining operations come into play. The workpiece has a fine-tolerance finish thanks to the powered abrasive paste, wheel, or belt used in this process.

  7. CNC Machining Surface grinding machining operations are necessary because an injection moulding process requires a tolerance surface finish. It gives the workpiece a fine-tolerance finish by using a powered abrasive paste, wheel, or belt.

  8. Tapping Have you ever wondered how grooves are created in bottles so that caps can fit properly? Well, tapping is how this is done. It is the procedure that aids in forming grooves on the inside surface of the drilled hole by using a conical thread or cylindrical cutting tool. A CNC lathe may be readily programmed to do tapping, which results in a very effective and simple threading operation. This gives the piece of art a final, definitive appearance that will assist identify its purpose.

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