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China Aluminum A383 Die Casting 5G RRU Station Base Enclosure - Top Suppliers & Factory Direct Quality
Process
Step 01
Aluminum die casting
Equipment & Material
Equipment: 400T aluminum die casting machine
Material: A380
Material: A380
Process Characteristics
- a. Furnace temperature: 670°±20°, Material handle: 20±2MM;
- b. Secondary materials cannot be used;
- c. Test the material composition to confirm that it is OK and can be produced;
- d. First piece confirmation is required after die-casting.
Precautions
- a. The filling quality of the surface needs to be confirmed. No cold insulation, no bulging, or lack of material for the pillars.
- b. Pay attention to the surface to avoid sticking molds, drawing molds, or poor ejector pin convexity.
- c. 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.
Step 02
Remove spout (Saw spout and knock out slag bag)
Equipment
Wooden Stick / sawing machine / labor protection gloves
Precautions
- a. Pay attention to the surface without crushing or shortage of materials.
- b. Control the appearance and size.
Step 03
IPQC inspection
Test Tools
Caliper, projection, three-dimensional, visual inspection of appearance.
Precautions
Use measuring tools correctly and check dimensions according to drawings.
Step 04
Grinding
Description
The sharp corners of the product are chamfered, deburred, non-machined ejector pins are sharpened, and polished to smooth the appearance.
Equipment
Wind grinder, 120# sandpaper
Precautions
No processing should be missed, no sharp corners or burrs should be removed, and the R corners should be connected smoothly.
Step 05
SHAPING
Equipment
Knife-edge ruler, shaping fixture
Precautions
Within 0.25mm of the front plane of the product
Step 06
IPQC inspection
Method
Visual inspection of appearance
Step 07
CNC (CNC machining + Deburring + cleaning)
Description
CNC machining + Tapping of 2 through holes for M3 teeth
Equipment
Tapping Machines/M3 Taps, Burr knife/Ultrasonic cleaning tank/Air gun.
Precautions
- a. Do not over-cut or miss processing;
- b. Be careful not to scratch or burr the surface;
- c. Guaranteed dimensional and form tolerances
Step 08
Cleaning + Passivation
Description
CNC machining + Tapping of 2 through holes for M3 teeth
Equipment
Tapping Machines/M3 Taps, Burr knife/Ultrasonic cleaning tank/Air gun.
Precautions
- a. Surface residual water droplets need to be baked clean!
- b. Salt mist test requires 48 hours!
- c. The surface is not allowed to have dirt, oil, color!
Step 09
Laser engraving two O-port location planes
Equipment
Laser engraving machine, laser engraving fixture
Note
- a. Check that there can be no burrs, particles, aluminum chips on the edge of the O-shaped orifice;
- b. The plane should be complete laser engraving, and the surface after laser engraving is not allowed to be polluted with oil and black marks!
Step 10
100% material inspection - Appearance visual inspection
Note
- a. Appearance should be inspected according to the sample, and the surface should be free from dirt, scratches and defects.
- b. The tooth pattern should be in accordance with the checking of through and through rule.
- c. The products are put into the blister tray, covered with white rice paper and then packed into boxes.
Step 11
IPQC inspection
Method
Visual inspection of appearance
Step 12
Full inspection of appearance + packaging
Description
Comprehensive inspection of products and packaging
Equipment
Carton, Knife card, Clapboard, bubble bag
Note
- 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 the pass-and-stop inspection.
- c. The product is placed in the knife card, covered with flat cardboard on the upper layer, and then packaged.
Step 13
FQC inspection
Test Tools
Caliper, projection, needle gauge, tooth gauge, appearance and outer packaging inspection
Note
Whether the measuring tool is within the calibration period.
Step 14
Shipping
Precautions
- a. Make sure the quantity is the same as order.
- b. Label and stamp on the outer box.
- c. Provide a shipping report.
Step 15
OQC shipping inspection
Test Tools
Caliper, projection, needle gauge, tooth gauge, appearance and outer packaging inspection
Precautions
Whether the measuring tool is within the calibration period. Whether it is consistent with SIP requirements and customer requirements.
Frequently Asked Questions
What raw material and equipment are used in the die casting process?
We use a 400T aluminum die casting machine with A380 material. The process requires a furnace temperature of 670°±20° and a material handle of 20±2MM. Secondary materials are strictly prohibited.
What are the requirements for the cleaning and passivation stage?
During the cleaning and passivation process, all surface residual water droplets must be baked clean. The parts must undergo a 48-hour salt mist test, and the surface is not allowed to have any dirt, oil, or color.
How is the quality of the thread holes verified?
The thread patterns, such as the two M3 tapped through holes processed during CNC machining, must comply with the strict pass-and-stop (through and through) gauge inspection rules.
What packaging methods are used to protect the finished products?
Products are placed in blister trays or knife cards, covered with white rice paper or flat cardboard on the upper layer, protected using bubble bags, and then securely packed into cartons.
What checks are performed during final shipping and OQC inspection?
OQC and shipping inspections verify that the quantity matches the order, outer boxes are labeled and stamped, and a shipping report is provided. All measuring tools must be within their calibration period and compliant with SIP and customer requirements.