China ADC12 Telecom Server Heatsink Enclosure Prototyping Part - Aluminum Die Cast Plating Suppliers & Factory
Process
- The filling quality of the surface needs to be confirmed. No cold insulation, no bulging, or lack of material for the pillars.
- Pay attention to the surface to avoid sticking molds, drawing molds, or poor ejector pin convexity.
- The ejector pins are concave by 0-0.2mm for non-machine-added surfaces and 0-0.2mm for machine-added surfaces. The thimble needs to be convex 0-0.2mm.
- Pay attention to the surface without crushing or shortage of materials.
- Control the appearance and size.
- Use measuring tools correctly and check dimensions according to drawings.
- Within 0.3mm of the front plane of the product.
- Do not overcut, missed processing;
- Surface attention must not be bruised, burrs; and
- Ensure that the surface finish Ra0.8, size, shape and location tolerances.
- The surface of the product should not be overcut, sand holes, lack of material. Burrs, and other undesirable phenomena
- go-no go fixed gauges inspection
- Test the flatness of the product according to the drawing.
- Hold the product lightly to prevent deformation.
- Do not miss the processing, no sharp corners, burrs removed cleanly, connected to the R angle of the smooth.
- No different colors, no dirty, not touching and scratching;
- Color according to the sample, uniform and consistent.
- Surface quality confirmation after coating;
- Hole need to needle gauge sampling, go -no go fixed gauges inspection.
- The appearance shall be inspected according to the sample. The surface shall be free of dirt, scratches, dents and defects, and the glue dispensing shall be even and without defects!
- The tooth pattern must comply with the go – no go fixed gauge inspection;
- The product is placed in the knife card, covered with white rice paper on the upper layer, and then packaged.
- Whether the measuring tool is within the calibration period.
- make sure the quantity is the same as order.
- Label and stamp on the outer box
- Provide a shipping report.
- Whether the measuring tool is within the calibration period. Whether it is consistent with SIP requirements and customer requirements.
Frequently Asked Questions
Q1: What are the primary equipment and materials used in the aluminum die casting process?
The casting stage utilizes a 500T aluminum die casting machine and HH33GR material. The furnace temperature is strictly maintained at 670°±20° with a material handle of 20±2mm. Secondary materials are prohibited.
Q2: How is quality controlled during CNC machining?
We use CNC machines, flat-bottomed gongs, drill bits, and tap jigs. Operators monitor the setup closely to prevent overcutting or missed processing while ensuring a surface finish of Ra0.8 and maintaining tight dimensional tolerances.
Q3: What specific inspection gates are implemented throughout production?
Products undergo multiple inspection gates: initial IPQC checks, a 100% material inspection, FQC inspection, and a final OQC shipping inspection. These tests employ calipers, projections, needle gauges, and go/no-go fixed gauges.
Q4: What precautions are taken during the chemical conversion membrane process?
To ensure membrane integrity, the surface must be free of color inconsistencies, dirt, scratches, or touch marks. The color must match the approved reference sample uniformly.
Q5: How are products packaged to prevent damage during transit?
Inspected products are placed securely inside knife card dividers, covered with white rice paper on the upper layer, and packed into cartons with bubble wrap and desiccant to prevent scratching, denting, or moisture accumulation.
Q6: What is verified during the final shipping and OQC stage?
We confirm that the final quantity matches the customer order, verify that all packaging is stamped and labeled properly, provide a complete shipping report, and ensure all inspection tools are within calibration limits.

