The manufacturing process for aluminum door hinges is similar to that of window handles, with its own specific requirements. Below are the steps involved:
1. Design: The design process involves creating a digital model of the desired hinge using software such as CAD (Computer Aided Design).
2. Material Selection: High-quality aluminum is chosen for its strength and durability.
3. Die Making: Based on the design specifications, a die (metal mold) is created to give the hinge its shape.
4. Die Casting: The chosen aluminum is heated to a molten state and then poured or injected into the mold made in the previous step.
5. Cooling and Solidifying: The mold is then cooled, allowing the aluminum to solidify and take the shape of the hinge.
6. Finishing: Once the basic shape of the hinge is formed, it undergoes finishing processes. These processes may include deburring (removing any sharp edges or rough spots), trimming (removing excess material), polishing, and sanding to enhance the hinge’s aesthetic appeal and functionality.
7. Drilling and Tapping: Holes are drilled into the hinge for the screws, and then these holes are tapped (threaded) so the screws can be attached.
8. Anodizing or Powder Coating: This stage can increase the durability and aesthetics of the hinge by applying an oxide layer that is corrosion- and wear-resistant (anodizing), or adding a tough and attractive powder coat layer.
9. Assembly: If the hinge design includes multiple parts, those are assembled in this step.
10. Quality Control: Every finished hinge goes through a quality control process to ensure it meets the desired specifications and quality standards.
11. Packaging and Shipping: Once the hinges pass the quality control, they are packaged securely and prepared for shipping to various customers.
As with the window handle process, this process may also vary based on specific hinge types and the individual manufacturer’s methodologies.