China Aluminum Casting Communication Terminal Base Enclosure - Top Suppliers & Quality Factory Products
Process
Aluminum die casting
1650T aluminum die casting machine; ADC12 material
- a. Material handle: 20±2mm, furnace temperature: 640°±20°;
- b. The use of secondary items is not allowed;
- c. Verify through testing that the material composition is suitable and can be manufactured;
- d. After die casting, first piece confirmation is required.
- a. Verify the filling quality of the surface. It’s not the bulge, it’s not the cold insulation, it’s not the lack of material in the pillars.
- b. Pay attention to the surface to prevent poor ejector pin crown, mold pulling or mold sticking.
- c. For non-machined surfaces and machined surfaces, the ejector pins are concave by 0-0.2 mm. The ejector pin must have a convex shape of 0-0.2 mm.
Remove spout
a wooden stick/ sawing machine
- a. Pay attention to the surface and don't damage it or use insufficient material.
- b. Adjust size and appearance
IPQC inspection (verify detailed dimensions in drawings)
calipers, projection, three-dimensional modeling, visual appearance inspection
Check dimensions against drawings and use accurate measuring equipment.
FRONT SHAMPING
Hydraulic presses, forming tools and blade rulers
Within 0.3mm of the front plane of the product
iPQC inspection
Visual inspection of appearance
Pressed copper heat pipe- Burying heat pipes as per drawings
Pressure Heat Pipe Fixture
- a. Copper tube must not warp and deform, rupture;
- b. Filler is full, no air bubbles;
- c. The surface should be careful not to bruise or burr.
- d. The position of copper pipe is accurate.
IPQC INSPECTION
Visual inspection of appearance
- a. The copper tube must not warp and deform or rupture;
- b. The filler is full and free of air bubbles;
CNC
Machining main Inlet, main Dump Port Face, Backside, Perforated Overbore
CNC machine, flat-bottomed cutter, drill bit, tap processing fixture.
- a. Do not over-cut or miss processing;
- b. Be careful not to scratch or burr the surface;
- c. Ensure the finish of the processed surface is Ra1.6, and the size and shape tolerances
100% material inspection- Appearance visual inspection
- a. The surface of the product must be free of overcutting, sand holes, lack of material, burrs, and other undesirable phenomena.
- b. Via pass and stop gauge detection
- c. Check the flatness of the product according to the drawings
- d. Handle the product gently to prevent deformation
GRIDing
The sharp corners of the product are chamfered, deburred, non-machined ejector pins are sharpened, and polished to smooth the appearance.
File, wind grinder, 120# sandpaper
No processing should be missed, no sharp corners or burrs should be removed, and the R corners should be connected smoothly.
IPQC inspection
visual inspection of appearance
Cleaning + Chemical conversion membrane + drying + power spraying
- a. No different color, dirty, not touching and scratching
- b. Color according to the sample, uniform and consistent;
- c. Powder thickness uniformity, no accumulation of tumor, no exposed bottom
IPQC inspection
Visual inspection of appearance, special characteristic inspection
- a. After the film/powder coating surface quality confirmation.
- b. Hole need to needle gauge sampling, tooth hole through the go-no go fixed gauges detection
Full inspection of appearance + packaging
Carton, knife card, clapboard, bubble bag
- a. 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!
- b. The tooth pattern must comply with go- no go fixed gauges inspection.
- c. The product is placed in the knife card, covered with flat cardboard on the upper layer, and then packaged.
FQC inspection
Caliper, projection, needle gauge, tooth gauge, appearance and outer packaging inspection
Whether the measuring tool is within the calibration period.
Full inspection + packaging inspection
- a. Appearance needs to be checked based on samples. There should be no dents, scratches or other blemishes on the surface and the glue application should be smooth and flawless!
- b. The tooth shape needs to match the pass gauge and stop gauge;
- c. Put the product into the knife card, cover the top of the knife card with a flat cardboard and package it.
Transportation
- a. Confirm that the quantity matches the order.
- b. Label and stamp the outer box.
- c. Send reports on shipments.
OQC shipment inspection
calipers, projectors, tooth gauges, needle gauges, appearance, outer packaging inspection
If the measuring device is still within its calibration window. Whether it meets both customer and SIP requirements.
Frequently Asked Questions (FAQ)
What equipment and materials are used in the die casting process?
The process utilizes a 1650T aluminum die casting machine and ADC12 material. The furnace temperature is strictly maintained at 640°±20° with a material handle of 20±2mm to ensure high-quality output.
How is the quality of the pressed copper heat pipes verified?
During the embedding process, we check that the copper tubes do not warp, deform, or rupture. The filler must be fully packed without air bubbles, the surface must remain free of bruises or burrs, and the position must align precisely with the drawings.
What parameters are verified during the CNC machining stage?
CNC machining processes the main inlet, main dump port face, backside, and perforated overbore. The process ensures a surface finish of Ra1.6 and strictly monitors size and shape tolerances to prevent over-cutting or scratching.
What are the key precautions during the surface powder spraying process?
We ensure there are no color variations, dirt, or surface scratches. The color must match the sample uniformly, and the powder thickness must be consistent without any accumulation of tumor or exposed base material.
How are the finished parts packaged to prevent damage during transportation?
Products are placed carefully inside protective knife cards, layered with flat cardboard on top, and packaged securely using cartons, bubble bags, and clapboards to prevent any surface defects or deformation.
How are testing instruments and measuring devices managed for quality control?
For FQC and OQC inspections, we verify that all measuring instruments—such as calipers, projectors, tooth gauges, and needle gauges—are within their valid calibration windows and fully comply with both customer and SIP requirements.